Published: 2026 | Last updated: May 2026
Accurate LT-30 is a fast-burning, single-base fine-grain extruded powder developed by Western Powders as part of the Accurate LT (Light Target) series. It was specifically built around the 30 BR benchrest cartridge – arguably the most accurate short-range cartridge in production use – and has accumulated a verified competition record that includes multiple world records in the 30 BR discipline. That origin defines everything about its design priorities: grain uniformity, metering precision, and the linear pressure curve that produces single-digit standard deviations in the small-capacity cases where it operates.
The LT designation is not marketing language. The powder was engineered for the light-target, small-capacity benchrest applications where charge-to-charge consistency is the primary performance metric and velocity is a secondary concern. It fills the fast-rifle burn rate position between Accurate 1680 and Accurate LT-32, and sits in the same general burn rate neighborhood as Hodgdon H4198 and Hodgdon Benchmark, but with a finer grain geometry that produces metering performance more typically associated with ball powders.
Outside its application window – small-capacity benchrest and precision varmint cartridges – LT-30 has no business being used. Its fast burn rate is genuinely inappropriate for medium and large capacity cases. Understanding the boundary of its application window is as important as understanding its strengths within it.
This article is based on published manufacturer specifications, established load data, and documented field reports. Specifications and performance figures can vary between lots, rifles, and conditions. If you have loaded Accurate LT-30 in practice – leave a comment below: real-world experience from the reloading bench is what separates verified data from manufacturer claims.
Powder Description and Technical Profile
Accurate LT-30 is a single-base, fine-grain cylindrical extruded powder. The single-base formulation – nitrocellulose without nitroglycerin – is the foundation of its temperature stability advantage over double-base alternatives in the same burn rate class. Single-base chemistry produces lower flame temperature, less carbon residue at comparable charge weights, and the more predictable energy release that single-digit standard deviations in benchrest loading require.
The fine-grain cylindrical geometry is the distinguishing engineering feature. Standard extruded stick powders have kernel lengths of 1.5-3.0 mm or more. LT-30’s kernels are cut significantly shorter and smaller in diameter, producing a grain size that approaches spherical powder dimensions. The VMD (Volume per grain measure) of 0.072-0.076 cc per grain reflects this: each kernel takes up very little volume relative to its mass, packing uniformly in the measure drum rather than bridging or shearing at the drum edge.
The practical metering result: charge-to-charge variance of ±0.07-0.10 grains on quality volumetric equipment. This approaches ball powder consistency and substantially exceeds what larger-grain extruded powders achieve. For the 30 BR benchrest application where charge weight tolerance of ±0.05 grains is the precision target, this metering performance matters.
Bulk density is 0.880-0.910 g/cc – high for an extruded powder at this burn rate position, reflecting the fine-grain geometry’s more uniform packing behavior. In the 30 BR case with 112-118 grain bullets at working charge weights, case fill runs 90-96% – the range that provides consistent powder column contact with the primer without compression.
The linear pressure curve is the internal ballistics property that produces the accuracy results associated with LT-30 in benchrest competition. Rather than spiking to peak pressure quickly and falling off, the linear curve builds progressively and consistently from shot to shot. In small-capacity cases where any inconsistency in the pressure curve shows directly in group size, this linearity is the primary accuracy driver.
Strengths:
- Metering consistency of ±0.07-0.10 grains – approaches ball powder performance; exceptional for an extruded powder
- Single-base chemistry produces clean, consistent burning and lower flame temperature than double-base alternatives – less throat erosion in precision benchrest barrels
- Linear pressure curve produces the shot-to-shot consistency that benchrest competition demands – low SD and ES in primary applications
- Verified competition record in 30 BR with documented world records – the performance claims are grounded in competition results, not laboratory specifications
- Clean burning even during long strings of fire – the carbon ring in the throat develops slowly, maintaining consistent ignition geometry through a match day
- Effective in multiple small-capacity cartridges beyond the primary 30 BR application – 222 Remington, 300 Blackout supersonic, 6.5 Grendel
Limitations:
- Temperature sensitivity of 0.5-0.8 fps per degree Fahrenheit – better than double-base ball powders in this burn rate class but notably more sensitive than Hodgdon Benchmark (0.1-0.3 fps/°F) or Hodgdon H4198 from the Extreme series
- Niche application window – appropriate only for small-capacity cartridges; fast burn rate is genuinely wrong for medium and large capacity cases
- Availability gaps during demand cycles – specialized products with focused user bases see concentrated demand that outstrips supply
- Smaller published data library than established powders like H4198 or Alliant Reloder 7 – Western Powders’ own data is the primary reference
Technical Characteristics
| Property | Specification |
|---|---|
| Manufacturer | Western Powders (Accurate) |
| Series | Accurate LT (Light Target) |
| Type | Single-Base Fine-Grain Extruded |
| Bulk Density (g/cc) | 0.880 – 0.910 |
| VMD (cc/grain) | 0.072 – 0.076 |
| Grain Shape | Small Cylindrical |
| Coating | Graphite Surface |
| Burn Rate Category | Fast Rifle |
| Temperature Stability | ~0.5-0.8 fps / °F |
The LT Series Context – LT-30 and LT-32
Accurate LT-30 is part of a two-powder LT series alongside Accurate LT-32:
| Powder | Burn Rate | Primary Application |
|---|---|---|
| Accurate LT-30 | Faster | 30 BR, 222 Rem, 300 BLK supersonic |
| Accurate LT-32 | Slower | 6mm PPC, 223 Remington precision |
The two powders share the same design philosophy – fine-grain single-base extruded geometry for metering consistency in small-capacity benchrest cases – but serve different burn rate positions. LT-30 is the 30 BR and small-capacity fast-burn specialist. LT-32 is the 6mm PPC standard, sitting at the burn rate position that the Vihtavuori N133 and Hodgdon H322 class covers.
They are not interchangeable by application. The burn rate difference between them is meaningful enough that using LT-30 in 6mm PPC produces premature pressure peaks; using LT-32 in 30 BR may not develop adequate pressure at appropriate charge weights.
Temperature Stability – Context for Benchrest Use
0.5-0.8 fps per degree Fahrenheit is the documented sensitivity of Accurate LT-30 – better than double-base ball powders at comparable burn rates (typically 1.2-1.5 fps/°F) but more sensitive than the Hodgdon Extreme series (Benchmark at 0.1-0.3 fps/°F, H4198 at similar levels).
For benchrest competition specifically, this sensitivity level requires management rather than dismissal. A 30 BR load developed at 60°F producing the accuracy node at 2,750 fps will shift approximately 25-40 fps across a 50°F temperature swing typical of an outdoor benchrest match day (early morning through midday). In short-range benchrest at 100-200 meters, that velocity shift is small enough that adjusting seating depth by 0.005-0.010 inch typically restores the accuracy node as conditions change – a technique that experienced benchrest competitors apply routinely regardless of powder.
For outdoor varmint hunting across seasonal temperatures (30°F to 90°F = 60°F swing = 30-48 fps variation), the shift is manageable at varmint hunting distances under 300 yards. At 500+ yard prairie dog shooting, the sensitivity is worth noting in drop chart construction.
The comparison that matters most for the benchrest user: Vihtavuori N133 at 0.4-0.6 fps/°F is comparable. Hodgdon Benchmark at 0.1-0.3 fps/°F is noticeably more stable. For competition where temperature stability is the primary selection criterion, Benchmark or H4198 are more appropriate. For competition where metering precision is the primary criterion, LT-30’s fine-grain geometry is the standout.
| Powder | Stability | 50°F Swing |
|---|---|---|
| Hodgdon Benchmark | 0.1-0.3 fps/°F | 5-15 fps |
| Hodgdon H4198 | ~0.3 fps/°F | ~15 fps |
| Vihtavuori N133 | 0.4-0.6 fps/°F | 20-30 fps |
| Accurate LT-30 | 0.5-0.8 fps/°F | 25-40 fps |
| Accurate 1680 | ~1.2 fps/°F | ~60 fps |
Burn Rate Comparison and Competing Powders
| Powder | Type | Density (g/cc) | Key Character |
|---|---|---|---|
| Accurate 1680 | Double-Base Spherical | 0.950 | Faster – 7.62×39, 300 BLK specialist |
| Hodgdon H4198 | Single-Base Extruded | 0.850 | Similar – Extreme stability |
| Norma 200 | Double-Base Extruded | 0.910 | Similar – European, larger grain |
| Accurate LT-30 | Single-Base Fine Extruded | 0.895 | Reference |
| Hodgdon Benchmark | Single-Base Extruded | 0.920 | Slightly Slower – Extreme stability |
| Vihtavuori N120 | Single-Base Extruded | 0.860 | Similar-Faster – 300 BLK, 22 Hornet |
| Alliant Reloder 7 | Single-Base Extruded | 0.880 | Similar – broad small-bore coverage |
| Accurate LT-32 | Single-Base Fine Extruded | 0.920 | Slower – 6mm PPC, 223 Rem |
vs. Hodgdon H4198: The most relevant Extreme series comparison. H4198 carries Extreme series temperature stability (approximately 0.3 fps/°F) – substantially better than LT-30’s 0.5-0.8 fps. It has a deeper published data library in North American manuals. LT-30 meters better from its finer grain geometry. For benchrest loading where maximum metering consistency across a match day is the priority, LT-30 is the specialist. For varmint hunting where seasonal temperature consistency matters more than marginal metering improvement, H4198 is the more practical choice.
vs. Hodgdon Benchmark: Benchmark is the Extreme series powder at a slightly slower burn rate – excellent for 204 Ruger and 223 Remington with 40-55 grain bullets. Its Extreme series stability (0.1-0.3 fps/°F) is substantially better than LT-30. It does not have the 30 BR competition record. For 222 Remington varmint loading where year-round temperature consistency matters, Benchmark is the more seasonally stable choice. For 30 BR benchrest where metering precision is the primary metric, LT-30 is the documented specialist.
vs. Accurate 1680: Accurate 1680 burns faster than LT-30 and is a double-base spherical powder specifically optimized for 7.62x39mm and 300 Blackout supersonic and subsonic loading. Its ball geometry meters with superior consistency. Temperature sensitivity (~1.2 fps/°F) is higher than LT-30. For 300 Blackout high-volume production on a progressive press, 1680 is the more practical choice from its ball metering advantage. For 300 Blackout precision bolt-gun loading where lower SD matters, LT-30 is a legitimate alternative.
vs. Norma 200: Norma 200 is a double-base extruded powder at a comparable burn rate. Its grain size is larger than LT-30, producing less consistent metering. It carries double-base energy content, producing slightly higher velocities in 222 Remington and 22 Hornet at the same pressure. LT-30 meters better and carries single-base stability. For benchrest applications, LT-30 is the more appropriate choice. For European powder system integration, Norma 200 is the natural alternative.
vs. Accurate LT-32: LT-32 burns slower and is the LT series choice for 6mm PPC and 223 Remington precision applications. Not a competitor to LT-30 in its primary applications – they are sequential tools for different burn rate positions in the same design philosophy.
Recommended Cartridges and Applications
Accurate LT-30 is appropriate only in small-capacity cartridges where the fast burn rate produces adequate pressure at appropriate charge weights. Its application window is genuinely narrow – this is a specialty powder, not a versatile all-rounder.
| Cartridge | Bullet Weight Range | Application |
|---|---|---|
| 30 BR | 112-118 gr | Primary benchrest application |
| 222 Remington | 40-55 gr | Precision varmint and benchrest |
| 300 Blackout | 110-125 gr | Supersonic precision bolt-gun |
| 6.5 Grendel | 90-100 gr | Light-bullet gas-gun applications |
| 7.62x39mm | 123-125 gr | Precision bolt-action loads |
| 30-30 Winchester | 110-130 gr | Light-bullet lever-action |
The 30 BR application is where LT-30 has its most documented and proven record. The 30 BR is a necked-down 6mm BR with a .30-caliber bore – a small-capacity precision case designed around 112-118 grain flat-base or boat-tail match bullets for 100-300 meter competition. LT-30 in the 30 BR produces group sizes measured in fractions of an inch under competition conditions, supported by world record performances. For a benchrest competitor specifically working in the 30 BR, LT-30 is the starting point that the competition record justifies.
The 300 Blackout supersonic application is the modern use case outside benchrest competition. LT-30 provides consistent ignition and low standard deviations in 300 Blackout with 110-125 grain supersonic bullets. This is specifically a bolt-gun or single-shot precision application – for high-volume 300 Blackout semi-automatic production on a progressive press, Accurate 1680’s ball geometry provides better metering at volume. LT-30 in 300 Blackout is not for subsonic loads – the burn rate is too fast for the 200-220 grain subsonic application where inadequate pressure from a fast powder creates squib risk.
The 6.5 Grendel application is specifically with 90-100 grain light-for-caliber bullets that reduce effective case volume. With standard 123-130 grain 6.5 Grendel projectiles, LT-30 is too fast. Verify against published Western Powders data for the specific bullet weight before loading.
The 30 BR and the Carbon Ring Question
One of the operational properties of LT-30 in benchrest use that the original article correctly identifies – and that is worth expanding – is its behavior regarding the carbon ring that forms in the chamber throat during a match.
In benchrest shooting, a carbon ring deposits at the junction between the neck and shoulder of the fired case during the first few rounds through a clean barrel. This ring acts as a secondary datum for headspace and changes the effective seating depth of the bullet relative to the lands during the session. Powders that produce more carbon deposition cause the ring to grow more quickly, changing the load’s tune mid-session.
LT-30’s clean-burning single-base chemistry produces carbon ring growth that is slow and predictable. An experienced 30 BR shooter can anticipate when the ring has stabilized (typically within 5-8 rounds through a clean barrel) and load to a seating depth that accounts for the stable-ring condition. Powders with faster carbon deposition require more frequent adjustments.
For a competitor shooting a 20-round sighter relay followed by a 25-shot record relay, the predictable carbon ring behavior of LT-30 is a genuine competitive asset.
Bullets
Accurate LT-30 is optimized for light-to-standard weight bullets in its primary bore sizes, where the fast burn rate generates adequate pressure in the small cases and the progressive pressure profile produces consistent acceleration.
| Brand | Model | Weight | Cartridge | Application |
|---|---|---|---|---|
| Sierra | MatchKing | 110-125 gr | 300 BLK / 30 BR | Benchrest and Match |
| Sierra | Tipped MatchKing | 110-125 gr | 300 BLK / 7.62x39mm | Precision Target |
| Berger | Target | 112-118 gr | 30 BR | Benchrest Precision |
| Hornady | Match | 110-125 gr | 300 BLK | Precision Match |
| Lapua | FMJ | 123-125 gr | 7.62x39mm | Precision Practice |
| Sierra | BlitzKing | 40-55 gr | 222 Rem | Varmint Precision |
| Hornady | V-MAX | 40-55 gr | 222 Rem | Varmint Hunting |
| Nosler | Ballistic Tip | 40-55 gr | 222 Rem | Predator Hunting |
| Berger | Varmint Explosive | 40-52 gr | 222 Rem | Precision Varmint |
For 30 BR benchrest competition specifically, flat-base match bullets in the 112-115 grain range have the longest competition record with LT-30. The flat base produces more consistent bullet release from the case neck than boat-tail designs in some benchrest rifles, and the moderate bearing surface of the 30-caliber at these weights suits the progressive pressure curve. Both Berger Target and Sierra MatchKing in this weight range have been used to set benchrest records with LT-30.
Have you loaded Accurate LT-30? Your practical data on charge weights, accuracy nodes, temperature behavior, or 30 BR competition results helps other reloaders more than any spec sheet. Leave a comment below.
Primers
Accurate LT-30 as a single-base fine-grain powder in small-capacity cases responds well to standard small rifle primers in most applications. The fine grain geometry initiates reliably at standard primer energy levels, and in many benchrest applications standard primers produce lower standard deviations than magnum primers – the same principle that applies to other easily-ignited single-base powders without heavy deterrent coatings.
| Primer | Type | Application |
|---|---|---|
| CCI BR-4 | Small Rifle Benchrest | 30 BR competition – minimum SD |
| Federal GM205M | Small Rifle Match | Competition – lowest extreme spread |
| Remington 7-1/2 | Small Rifle Bench Rest | Hot ignition for small cases |
| CCI 400 | Small Rifle Standard | General load development |
| Federal 205 | Small Rifle Standard | Consistent ignition general use |
| Winchester WSR | Small Rifle Standard | 222 Rem, 300 BLK general |
| CCI No. 41 | Small Rifle Magnum (Mil-Spec) | AR-15 semi-auto 300 BLK |
| CCI 450 | Small Rifle Magnum | Cold weather below 15°F |
| RWS 4033 | Small Rifle | Premium European precision option |
| Fiocchi Small Rifle | Small Rifle Standard | Consistent volume alternative |
For 30 BR benchrest competition, the CCI BR-4 benchrest primer is the standard pairing – its match-grade brisance tolerances complement the fine-grain powder’s inherent consistency. The Federal GM205M is the alternative for reloaders who find it produces tighter extreme spreads in their specific rifle.
For AR-15 300 Blackout semi-automatic loading, the CCI No. 41 mil-spec cup primer is required to prevent slam-fire from a free-floating firing pin.
Metering and Equipment Compatibility
Accurate LT-30’s fine grain geometry is the defining feature that separates it from conventional extruded powders. On quality volumetric equipment, ±0.07-0.10 grain charge-to-charge variance is consistently achievable – approaching ball powder performance from an extruded chemistry.
For benchrest single-stage loading, the preferred approach remains hand-weighed charges for maximum precision:
- Throw slightly under target weight with a quality volumetric measure like the Redding Competition BR-30 or Redding Competition 10X
- Trickle to exact weight with a Frankford Arsenal Powder Trickler on a high-resolution scale like the RCBS MatchMaster or Lyman Gen 6 Compact
At typical 30 BR and 222 Remington charge weights (18-28 grains), individual LT-30 kernels weigh approximately 0.05-0.07 grains – excellent single-kernel resolution for manual trickling to ±0.02 grains.
For 300 Blackout and 7.62x39mm production loading, the fine grain geometry allows reasonably consistent volumetric production on progressive presses. The Dillon Precision Case Activated Powder Measure Assembly handles fine extruded powders at progressive press speeds with less variance than larger-grain alternatives.
Reloading Safety Notes
All charge weights must come from current published Western Powders load data for Accurate LT-30 specifically. Western Powders maintains current data online. Do not substitute H4198, Accurate 1680, or Accurate LT-32 charge weights without independent verification.
Start 10% below the listed maximum and work up in 0.2-grain increments (appropriate for the small charge weight range in primary applications). Watch for pressure signs: flattened or cratered primers, stiff bolt lift, ejector marks.
300 Blackout subsonic loads are not appropriate for LT-30. The fast burn rate at the very low charge weights required for 200+ grain subsonic bullets in 300 Blackout creates insufficient pressure for consistent ignition – squib risk is real. Use powders specifically developed for 300 Blackout subsonic loads: Accurate 1680 or purpose-designed subsonic options.
LT-30 in large-capacity cases produces inappropriate pressure curves – the burn rate peaks too early for efficient combustion in 308 Winchester or any medium-to-large rifle case. Do not attempt to extend its application beyond its documented small-capacity window.
See the overpressure in reloading guide for systematic pressure sign identification.
FAQ
Is LT-30 the correct choice for 6mm PPC benchrest?
No – Accurate LT-32 is the LT series powder optimized for 6mm PPC benchrest. LT-30 burns faster and is specifically designed for the 30 BR. Using LT-30 in 6mm PPC produces a pressure curve that peaks too early for optimal efficiency. Use LT-32 for 6mm PPC applications.
How does LT-30 compare to Vihtavuori N133 for small-bore benchrest?
Vihtavuori N133 is a comparable single-base fine extruded powder with a longer benchrest record in 6mm PPC and 222 Remington competition and Vihtavuori’s vertically integrated manufacturing consistency advantage. Its temperature stability (0.4-0.6 fps/°F) is comparable to LT-30. LT-30 is specifically optimized for 30 BR where N133 has less specific documentation. For 222 Remington precision, either is a legitimate choice – load development in your specific barrel guides the final selection.
Can LT-30 be used for subsonic 300 Blackout?
No – this is a genuine safety concern. LT-30 is too fast for 300 Blackout subsonic applications with 200-220 grain bullets. The very small charge weights required for subsonic velocities with a fast powder produce inadequate pressure for consistent ignition – squib risk is real and documented. Use Accurate 1680 or purpose-developed subsonic powders for 300 Blackout subsonic loading.
Conclusion
Accurate LT-30 occupies a specific and well-justified position in the precision benchrest market. The fine-grain single-base extruded geometry produces metering consistency that rivals ball powders while maintaining the linear pressure curve that single-base chemistry delivers. The world record history in 30 BR benchrest is documented, not theoretical. For the small-capacity precision applications it was designed for, LT-30 delivers on its design brief.
The application window is narrow by design. Temperature sensitivity that is better than double-base ball powders but not at Extreme series levels, availability that depends on a specialized production cycle, and a data library focused primarily on Western Powders’ own publications – all define a specialist tool rather than a versatile all-rounder.
Choose Accurate LT-30 if you load 30 BR for short-range benchrest competition and want the powder with the documented competition record in that specific cartridge, or if you load 222 Remington or 300 Blackout supersonic in a precision bolt-gun and want fine-grain metering consistency with single-base chemistry. Choose Hodgdon H4198 if Extreme series temperature stability across all seasons is the priority and metering precision is secondary. Choose Hodgdon Benchmark if 204 Ruger and 222 Remington at Extreme series stability levels are the primary applications. Choose Accurate LT-32 if 6mm PPC is your benchrest cartridge.
Editor’s note: Published load data and manufacturer specifications are the starting point – not the final word. Field experience from reloaders who have actually worked with this powder is the most reliable guide to what it does in practice. If you have used Accurate LT-30, share your results in the comments.
Editorial note: Originally published 2026, revised May 2026.
