Published: December 2025 | Last updated: April 2026
Disclaimer: The 22 ARC has two separate SAAMI pressure specifications – 52,000 PSI for gas-operated semi-automatic rifles and 62,000 PSI for bolt-action rifles. These specifications are not interchangeable. Always use load data matched to your specific platform. Begin 10% below published maximums for your platform and work up carefully while monitoring for pressure signs.
The 22 ARC arrived in 2024 as Hornady’s answer to a specific question: what if you could get 22-250 Remington ballistics from an AR-15 platform, with the heavy-bullet capability and wind resistance that makes a round genuinely useful at 600 yards? The cartridge is built on a necked-down 6mm ARC case, uses the same rebated rim that allows standard AR-15 magazines and bolts to function without modification, and is designed from the ground up around 70-90 grain .224-inch bullets with ballistic coefficients that the 223 Remington cannot realistically stabilize.
The results are as good as advertised. A 80-grain ELD Match bullet leaving a 22-inch AR-15 barrel at 3,100 FPS drifts 30-35% less in wind at 600 yards than a 77-grain SMK from a 223 Remington at similar velocity. It stays supersonic past 1,200 yards. It hits noticeably harder at distance than anything the 223 Remington can do with similar bullets. For a precision shooter, predator hunter, or varmint specialist who wants the AR-15 platform and needs genuine long-range capability, the 22 ARC is a meaningful step forward.
The reloading picture requires care because of the dual pressure specification – the most operationally important characteristic of this cartridge for handloaders.
The Dual Pressure Specification – Critical Safety Information
The 22 ARC is the only commonly encountered commercial rifle cartridge with two distinct SAAMI maximum average pressure specifications based on platform type:
- Gas-operated semi-automatic (AR-15 style): 52,000 PSI maximum
- Bolt-action rifles: 62,000 PSI maximum
This distinction exists because gas-operated actions extract cases at higher residual pressure than bolt-actions – the case must release from the chamber while the bolt is still moving rearward, and that happens slightly earlier in the pressure curve than a bolt-action’s manual extraction. Running a 62,000 PSI bolt-gun load in a gas gun creates a dangerous situation where the brass is being pulled from the chamber at pressure levels that can cause case head separation, stuck cases, or component failure.
The practical rule is absolute: know your platform, use matching data, and never run bolt-action data in a semi-automatic. Published data from Hornady and other sources labels loads clearly for gas-gun vs bolt-action use. If a manual or data sheet does not specify the platform, treat the data as applicable to bolt-actions only and develop new data from 10% below published gas-gun starting loads for your semi-automatic.
When in doubt about a specific load’s platform compatibility, email Hornady’s technical line or contact the data source directly. This is not an area for guessing.
Technical Characteristics
| Characteristic | Value |
|---|---|
| Bullet Diameter | 0.224 inches |
| Case Length | 1.490 inches |
| Overall Cartridge Length | 2.260 inches (SAAMI max) |
| Rim Diameter | 0.378 inches (rebated – same as 6mm ARC) |
| Case Capacity | ~33-34 grains H2O |
| Case Type | Rebated rim, bottleneck |
| Parent Case | 6mm ARC (necked down) |
| Max Avg Pressure – Gas Gun | 52,000 PSI (SAAMI) |
| Max Avg Pressure – Bolt Action | 62,000 PSI (SAAMI) |
| Typical Bullet Weight | 55-95 gr |
| Muzzle Velocity (62 gr, gas gun) | ~3,300 FPS (24-in barrel) |
| Muzzle Velocity (80 gr, gas gun) | ~3,000-3,100 FPS (22-in barrel) |
| Muzzle Velocity (88-90 gr, bolt) | ~2,950-3,000 FPS (24-in barrel) |
The rebated rim is what makes the 22 ARC work in an AR-15 without modification – it has the same rim diameter as the 6mm ARC, which matches the standard AR-15 bolt face. No bolt swap, no magazine modification. This is the cartridge’s central practical advantage over alternatives like the 224 Valkyrie, which requires a different bolt and specific magazines.
Twist Rate
The 22 ARC’s design rationale centers on heavy, high-BC .224-inch bullets in the 75-95 grain range. These bullets are physically long for their diameter, and they require a fast twist rate to maintain gyroscopic stability. Hornady’s standard recommendation is 1:7, and this is not a conservative suggestion – it is a functional requirement for the cartridge’s primary use case.
| Twist Rate | Optimal Bullet Weight | Platform Notes |
|---|---|---|
| 1:7 | 75-95 gr | Hornady’s standard recommendation; required for 88-95 gr bullets |
| 1:7 | 62-75 gr | Over-stabilizes lighter bullets but produces no accuracy penalty at these velocities |
| 1:8 | 60-85 gr | Adequate for most loads; marginal with 88+ gr bullets |
| 1:8 | 90-95 gr | Not reliably stabilized; avoid these bullet weights with 1:8 |
A 1:8 twist handles 80-grain bullets adequately and produces good accuracy with the Hornady ELD-M 80-grain – the most common competition load. However, the very heaviest bullets in the 88-95 grain range that give the 22 ARC its maximum downrange performance genuinely need the 1:7 twist. If you are building or selecting a barrel with the intent of running 88-grain Berger Hybrid Target or 90-grain Sierra MatchKing bullets, specify 1:7. If you are primarily loading 62-80 grain varmint and hunting bullets, 1:8 is adequate.
Barrel length choices:
- 16 inches: Minimum practical length for gas-gun function with the slower powders suited to this case; velocity penalties are meaningful (~100 FPS vs 20-inch)
- 18 inches: Good balance of velocity and handling for hunting AR builds; loses ~50 FPS vs 20-inch
- 20-22 inches: Optimal for most gas-gun applications; full powder burn, good velocity
- 24 inches: Best for bolt-action precision builds; maximum velocity and best ES/SD numbers
Recoil
The 22 ARC’s recoil in an AR-15 is genuinely mild – approximately 7-7.5 ft-lbs with an 80-grain bullet at 3,100 FPS. The gas operation of the AR-15 spreads the felt impulse over a longer period than a bolt-action, making it feel lighter still. Shooters who move to the 22 ARC from a 223 Remington will notice slightly more push but nothing that disrupts sight picture or slows follow-up shots.
| Cartridge | Recoil (ft-lbs) | Platform | Notes |
|---|---|---|---|
| 223 Remington | 3.5-4.0 | AR-15 | The baseline; almost no felt recoil |
| 22 ARC | 7.0-7.5 | AR-15 | Light; no disruption to sight picture |
| 224 Valkyrie | 8.5-9.0 | AR-15 | Slightly more; requires bolt/mag change |
| 22-250 Remington | 4.5-5.0 | Bolt-action | Very light but bolt-action only |
| 6mm ARC | 8.5-9.0 | AR-15 | More recoil; heavier bullets, more energy |
The comparison with the 224 Valkyrie is the most direct. The 22 ARC produces similar or slightly less recoil while delivering meaningfully higher velocity with 75-85 grain bullets, and does so without requiring a different bolt or special magazines. For an existing AR-15 owner who wants long-range 22-caliber performance, the barrel-swap simplicity of the 22 ARC is a genuine practical advantage.
Ballistics and Field Performance
Trajectory
The ballistic data below uses the 80-grain Hornady ELD-M at 3,050 FPS from a 22-inch gas-gun barrel – the most common competition and hunting configuration. This bullet’s G7 BC of approximately 0.260 is what drives the wind-resistance advantage over lighter, lower-BC .224-inch bullets.
| Distance (yards) | Velocity (FPS) | Energy (ft-lbs) | Drop (inches) |
|---|---|---|---|
| Muzzle | 3,050 | 1,651 | -1.5 |
| 50 | 2,957 | 1,551 | +0.5 |
| 100 | 2,866 | 1,458 | +1.3 |
| 150 | 2,777 | 1,370 | +1.0 |
| 200 | 2,690 | 1,285 | 0.0 |
| 300 | 2,520 | 1,128 | -5.5 |
| 400 | 2,356 | 985 | -16.8 |
| 500 | 2,196 | 857 | -35.2 |
| 600 | 2,041 | 740 | -62.0 |
| 800 | 1,742 | 539 | -147.8 |
| 1,000 | 1,464 | 381 | -303.0 |
80-grain ELD-M, G1 BC 0.535 / G7 BC 0.260, 3,050 FPS muzzle velocity. 59°F, sea level, 1.5-inch sight height, 200-yard zero.
How It Compares at Distance
The meaningful comparison is against the 223 Remington with a quality 77-grain bullet – the heaviest bullet the standard 223 Remington 1:8 twist handles reliably.
| Range | 22 ARC 80 gr (3,050 FPS) | 223 Rem 77 gr (2,750 FPS) | Advantage |
|---|---|---|---|
| Velocity @500 yds | 2,196 FPS | 1,970 FPS | ARC +226 FPS |
| Energy @500 yds | 857 ft-lbs | 664 ft-lbs | ARC +193 ft-lbs |
| Wind @500 yds (10 MPH) | ~9.5 in | ~12.0 in | ARC ~2.5 in less |
| Wind @800 yds (10 MPH) | ~26 in | ~35 in | ARC ~9 in less |
| Supersonic to | ~1,250 yds | ~900 yds | ARC +350 yds |
At 500 yards the 22 ARC with an 80-grain bullet is delivering 29% more energy than a 223 Remington with a 77-grain bullet – a gap that has real consequences for terminal performance on coyotes and medium varmints. At 800 yards, the wind drift advantage is enough to make a meaningful difference in hit probability in field conditions.
For further comparisons, see 22 ARC vs 224 Valkyrie vs 22 Nosler and 22 ARC vs 6mm ARC.
Reloading the 22 ARC
Primers
The 22 ARC uses small rifle primers. Standard small rifle primers are appropriate for most gas-gun loads at 52,000 PSI. Small rifle magnum primers are warranted for bolt-action loads at higher charges and in cold-weather conditions.
| Primer | Type | Application |
|---|---|---|
| CCI 400 | Small Rifle | Standard gas-gun loads; reliable and consistent |
| CCI BR-4 | Small Rifle Bench Rest | Precision gas-gun and bolt-action loads; best SD |
| Federal 205 | Small Rifle | Good accuracy; consistent; widely available |
| Federal GM205M | Small Rifle Match | Premium precision option; competition loads |
| Remington 7-1/2 | Small Rifle Bench Rest | Traditional accuracy primer; good consistency |
| Winchester WSR | Small Rifle | Reliable; good for general hunting loads |
| CCI 450 | Small Rifle Magnum | Bolt-action max loads; cold weather semi-auto use |
| Federal GM205MAR | Small Rifle Match AR | AR-optimized primer; harder cup for semi-auto use |
The Federal GM205MAR is worth specific mention for semi-automatic use. Its harder primer cup is specifically designed for AR-platform firing pins, which can have enough energy to cause slam-fires with very soft primers. In any semi-automatic, verify that your primer of choice does not produce slam-fire symptoms – hard bolt closure should not detonate the round.
For bolt-action precision loads, the CCI BR-4 or Federal GM205M produces the tightest velocity standard deviations and is the appropriate choice for 62,000 PSI loads.
Cases
The 22 ARC case is still relatively new, and brass availability from independent suppliers is growing. Hornady is the primary source and produces consistent, reliable cases. Alpha Munitions and Peterson offer premium alternatives with tighter dimensional tolerances for precision work.
| Brand | Notes |
|---|---|
| Hornady | Primary source; good consistency; widely available; standard for most loads |
| Alpha Munitions | Premium option; tight tolerances; excellent for precision bolt-action development |
| Peterson | Premium American option; growing availability; excellent consistency |
The 22 ARC case is short – 1.490 inches – and the rebated rim requires attention during sizing. Full-length size after every firing for gas-gun loads to ensure reliable feeding and extraction. For bolt-action precision loads, minimum shoulder bump sizing is appropriate to extend case life.
Trim to 1.490 inches after each firing. The short case stretches proportionally less than longer cases, but maintaining correct trim length keeps neck tension consistent. Anneal every 4-5 firings to extend case life and maintain consistent neck tension.
Check primer pockets after each firing in gas-gun loads. Semi-automatic extraction at higher residual pressure can loosen primer pockets faster than bolt-action firing cycles. Cases that no longer hold primers firmly should be retired.
For best results, sort brass by headstamp and lot number and keep gas-gun and bolt-action batches completely separate. Mixing the two introduces variables that undermine load development.
Bullets
The 22 ARC’s raison d’être is heavy, high-BC .224-inch bullets that the 223 Remington cannot stabilize or does not have the case volume to drive at competitive velocities. The bullet selection below reflects that focus, though lighter options are included for varmint and high-volume use.
| Bullet | Weight | Type | Twist Req | Application | Notes |
|---|---|---|---|---|---|
| Hornady V-MAX | 55 gr | Polymer Tip Varmint | 1:8+ | Prairie dogs, high-volume varmint | Max velocity; not the ARC’s strength |
| Hornady ELD-VT | 62 gr | Polymer Tip Varmint | 1:8+ | Varmint; factory V-Match load bullet | Good entry-level varmint load |
| Hornady ELD-M | 75 gr | Polymer Tip Match | 1:8 | Competition, long-range target | High BC; good for gas-gun precision |
| Sierra MatchKing | 77 gr | HPBT | 1:8 | Competition, target | Classic high-BC .224 match bullet |
| Hornady ELD-X | 80 gr | Polymer Tip Hunting | 1:7-1:8 | Predators, medium game | Best hunting bullet for 22 ARC |
| Hornady ELD-M | 80 gr | Polymer Tip Match | 1:7-1:8 | Competition, long-range target | High BC; dominant competition bullet |
| Sierra MatchKing | 80 gr | HPBT | 1:7-1:8 | Competition, benchrest | Proven accuracy; excellent BC |
| Berger Hybrid Target | 85.5 gr | HPBT Hybrid | 1:7 | PRS, F-Class, long-range target | Very high BC; top competition bullet |
| Hornady ELD-M | 88 gr | Polymer Tip Match | 1:7 | Long-range competition | Highest BC in practical ARC range |
| Sierra MatchKing | 90 gr | HPBT | 1:7 | Benchrest, long-range target | Maximum BC; requires 1:7 |
| Hornady CX | 70 gr | Monolithic | 1:7-1:8 | Lead-free hunting; tough game | Full weight retention; California legal |
The Hornady ELD-M 80-grain is the dominant competition bullet and a practical default for most gas-gun precision loads. It balances velocity (achievable at 3,050-3,100 FPS in a 22-inch gas gun) with a high enough BC to make the 22 ARC’s wind-resistance advantage work at 500-800 yards. Most published competition data centers on this bullet.
For hunting use, the Hornady ELD-X 80-grain is the appropriate choice over a match bullet. Match bullets are not designed for terminal hunting expansion – they are optimized for accuracy and may not expand reliably at reduced impact velocities. The ELD-X’s Heat Shield tip and controlled-expansion design handles the range of velocities from close-range predator work to 500-yard shots where the bullet is arriving below 2,400 FPS.
For California and other lead-free zones, the Hornady CX 70-grain is the recommended option. Monolithic bullets in the .224-inch bore produce higher chamber pressure than lead-core bullets of the same weight in this small case – start from CX-specific load data at 10% below maximum, not from lead-core starting loads.
Powders
The 22 ARC’s small case (33-34 grains H2O capacity) and focus on 70-90 grain bullets puts it in the medium burn rate neighborhood. The case is too small for the very slow powders suited to the 6.5 PRC or similar, and the 1:7 twist and heavier bullets mean faster powders like Hodgdon H322 that work well with 55-grain 223 Remington loads are generally too fast here. The sweet spot is Hodgdon CFE 223, Hodgdon Varget, Alliant Reloder 15, and Vihtavuori N530.
Important: All charge weights below are separated by platform. Do not use bolt-action data in a semi-automatic AR-15.
| Powder | Platform | Bullet Weight | Start Charge | Max Charge | Approx Velocity | Notes |
|---|---|---|---|---|---|---|
| Hodgdon CFE 223 | Gas gun | 75-80 gr | 24.5 gr | 27.5 gr | ~3,050 FPS | Top gas-gun choice; copper fouling eraser; excellent metering |
| Hodgdon CFE 223 | Gas gun | 62-70 gr | 26.0 gr | 29.0 gr | ~3,250 FPS | Good with lighter varmint bullets |
| Hodgdon CFE 223 | Bolt | 80-88 gr | 26.0 gr | 29.5 gr | ~3,100 FPS | Same powder, higher ceiling for bolt |
| Hodgdon Varget | Gas gun | 75-80 gr | 23.5 gr | 26.5 gr | ~3,020 FPS | Temperature stable; consistent across conditions |
| Hodgdon Varget | Gas gun | 62-70 gr | 25.0 gr | 28.0 gr | ~3,220 FPS | Good for lighter hunting bullets |
| Hodgdon Varget | Bolt | 80-88 gr | 25.0 gr | 28.5 gr | ~3,080 FPS | Temperature stable; excellent for precision bolt loads |
| Alliant Reloder 15 | Gas gun | 80-90 gr | 23.0 gr | 26.0 gr | ~3,000 FPS | Good with heavier bullets; consistent |
| Alliant Reloder 15 | Bolt | 85-95 gr | 24.5 gr | 27.5 gr | ~3,050 FPS | Best choice for 88-95 gr heavy match bullets |
| Vihtavuori N530 | Gas gun | 75-85 gr | 23.0 gr | 26.0 gr | ~3,020 FPS | Premium consistency; excellent SD for competition |
| Vihtavuori N530 | Bolt | 80-90 gr | 24.5 gr | 28.0 gr | ~3,100 FPS | Top precision bolt load option |
| Winchester StaBall Match | Gas gun | 70-85 gr | 24.0 gr | 27.0 gr | ~3,050 FPS | Temperature stable ball powder; excellent metering |
| Winchester StaBall Match | Bolt | 80-90 gr | 25.0 gr | 28.5 gr | ~3,100 FPS | Good bolt-action precision option |
| Hodgdon Benchmark | Gas gun | 62-75 gr | 24.0 gr | 27.0 gr | ~3,200 FPS | Accurate; good for lighter bullets |
| Ramshot TAC | Gas gun | 70-85 gr | 23.5 gr | 26.5 gr | ~3,020 FPS | Ball powder; consistent metering; reliable gas-gun function |
| Shooters World AR Plus | Gas gun | 60-80 gr | 24.0 gr | 27.0 gr | ~3,100 FPS | Clean burning; good for AR function; cost effective |
| Alliant Power Pro 2000-MR | Gas gun | 75-90 gr | 23.5 gr | 26.5 gr | ~3,000 FPS | Good with heavier bullets; progressive metering |
| Accurate 1680 | Gas gun | 75-90 gr | 20.0 gr | 23.0 gr | ~2,600 FPS | Subsonic and reduced loads only; not for standard use |
All charge weights are reference figures. Verify against current Hornady, Hodgdon, Alliant, or Vihtavuori data for your specific platform (gas gun or bolt action) before loading. Never exceed published platform-specific maximums.
Hodgdon CFE 223 is the most practical starting point for gas-gun 22 ARC loads. Its copper fouling eraser additive is a meaningful benefit in a high-volume shooting context – the 223 Remington comparison is instructive here, as AR-15 shooters who run thousands of rounds per year know that copper fouling management is a real maintenance concern in small-bore cartridges at high velocity. CFE 223’s reduced fouling means cleaner barrel performance over a long session.
Hodgdon Varget is the temperature-stable choice for hunters and competitors who develop loads in one climate and use them in another. Its broad published data and proven accuracy track record in .224-inch cartridges make it a reliable alternative to CFE 223.
Vihtavuori N530 is the premium precision powder for 22 ARC loads where standard deviation is the priority. Combined with premium brass and consistent primers, N530 loads produce tight velocity spreads that translate directly to tight groups at 600+ yards.
For bolt-action 22 ARC builds running 88-95 grain heavy match bullets at the 62,000 PSI ceiling, Alliant Reloder 15 is the recommended starting powder. Its slightly slower burn rate suits the heavier bullets better than CFE 223 or Benchmark, producing more complete combustion and more consistent velocities at the top of the pressure window.
Accurate 1680 is listed specifically for reduced and subsonic loads – not for standard performance loads. It is the choice for a suppressed 22 ARC build where subsonic heavy-bullet loads are the goal. Do not use it expecting standard velocities; the numbers in that row reflect its intended application.
Practical Hunting Applications
Predators and Coyotes
The 22 ARC with an 80-grain Hornady ELD-X at 3,050 FPS is one of the most capable coyote cartridges available from an AR-15 platform. At 500 yards it is delivering approximately 857 ft-lbs – more than adequate for clean kills on coyotes with good bullet placement. Wind drift at that distance is approximately 9-10 inches in a 10 MPH crosswind, which requires compensation but is less drift than the 223 Remington in the same conditions.
The gas-gun platform allows quick follow-up shots when multiple coyotes are called in simultaneously – a scenario where the AR-15’s semi-automatic function offers a real field advantage over bolt-action predator rifles.
For pelt hunters, the Hornady ELD-X is preferable to explosive varmint bullets at 22 ARC velocities. The controlled-expansion design produces a cleaner entrance wound and avoids the extensive pelt damage that a 3,100 FPS impact from an Hornady V-MAX would cause.
Prairie Dogs and Ground Squirrels
With 62-75 grain varmint bullets at 3,200-3,400 FPS, the 22 ARC is a capable prairie dog and ground squirrel cartridge. The gas-gun platform allows rapid engagement of multiple targets, and the flat trajectory with a 200-yard zero keeps holdover minimal inside 250 yards.
The practical constraint is the same one that applies to all high-velocity .22-caliber cartridges in sustained varmint shooting: barrel heat and throat erosion. Let the barrel cool between strings, clean thoroughly after each session, and understand that high-volume prairie dog shooting accumulates meaningful throat wear. The 22 ARC’s published barrel life estimate of 3,000-5,000 rounds assumes reasonable use – sustained prairie dog sessions that run 300+ rounds in a day will consume barrel life faster than that estimate suggests.
Medium Game
In jurisdictions where .22-caliber centerfires are legal for deer or antelope, the 22 ARC with a 80-grain Hornady ELD-X or 70-grain Hornady CX is a functional option at ranges inside 300 yards. The energy at 300 yards with an 80-grain load is approximately 1,128 ft-lbs, which is above the threshold for clean kills on deer-sized game with precise shot placement. This is not a primary deer rifle recommendation – the 6mm ARC or 6.5 Creedmoor is more appropriate for dedicated deer hunting with an AR platform – but for mixed-use builds in areas where it is legal, the 22 ARC with the right bullet is capable.
22 ARC vs 6mm ARC: Choosing Between the ARC Family
The natural question for any AR-15 owner considering the 22 ARC is how it compares to the 6mm ARC – the parent case and the cartridge that established the ARC platform.
| Factor | 22 ARC | 6mm ARC | Advantage |
|---|---|---|---|
| Muzzle Velocity (light) | 3,300+ FPS (62 gr) | 2,750 FPS (75 gr) | 22 ARC |
| Wind @600 yds (10 MPH) | ~15 in (80 gr) | ~13 in (108 gr) | 6mm ARC |
| Energy @500 yds | ~857 ft-lbs (80 gr) | ~1,200 ft-lbs (108 gr) | 6mm ARC |
| Practical Deer Range | ~250 yds | ~400 yds | 6mm ARC |
| Varmint Performance | Excellent | Good | 22 ARC |
| Barrel Life | 3,000-5,000 rds | 3,000-4,000 rds | Similar |
If your primary use is varmints and predators with occasional medium game, the 22 ARC is the better tool. If you are primarily a deer hunter who also shoots predators, the 6mm ARC is a more complete solution. Both use the same bolt and magazines in an AR-15.
For more detail, see 22 ARC vs 6mm ARC.
Conclusion
The 22 ARC delivers on its core promise: genuine long-range .22-caliber performance from a standard AR-15 without a bolt swap, without special magazines, and without the recoil that makes extended sessions unpleasant. For a precision shooter or predator hunter who wants the AR-15 platform and needs to reach past 400 yards reliably, it is a meaningful improvement over the 223 Remington.
The dual pressure specification is the one thing every 22 ARC reloader must internalize before loading the first round. Semi-automatic data and bolt-action data are not interchangeable, and the difference between 52,000 PSI and 62,000 PSI is real. Read your data source carefully, match the data to your platform, and the 22 ARC is a straightforward and rewarding cartridge to reload for.
For related reading, see the 22 ARC handloading technical guide, developing a custom 22 ARC load, best bullets for 22 ARC, 22 ARC vs 224 Valkyrie vs 22 Nosler, and 22 ARC ballistics.
Disclaimer: All load data in this article is for reference purposes only. Gas-gun (52,000 PSI) and bolt-action (62,000 PSI) data are not interchangeable – always use data matched to your platform. Verify all charges against current published reloading manuals before loading. Never exceed published platform-specific maximum charges. Begin 10% below listed maximums and work up while monitoring for pressure signs.
Editorial note: This article was originally published in December 2025 and revised in April 2026. The revision expanded the dual pressure specification warning into a dedicated section making the gas-gun vs bolt-action data separation explicit as the primary safety concern for handloaders, added a complete powder table with 17 powders separated by platform and bullet weight with charge weight ranges, expanded bullet selection with twist rate requirements for each weight, added a trajectory table with 200-yard zero from muzzle to 1,000 yards, added a direct performance comparison table against the 223 Remington at 500 and 800 yards, a 22 ARC vs 6mm ARC comparison table for buyers deciding between the two ARC cartridges, platform-specific primer guidance including slam-fire concerns in semi-automatics, and expanded hunting application guidance.
