Load Specifications
Load data in caliber .338-06 A-Square with .338 | 176gr | CutEdge ER Raptor bullet and 59 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, SNPE Vectan SP 10 and ADI AR 2219.
Important Notice: DO NOT go below Minimum Charge or above Maximum Charge. Since we have no control over the equipment and components used, any responsibility and liability for the results achieved is rejected.
Only powders/loads that match the current filter criteria are displayed: max pressure of a load ≤ 90% of max. standardized pressure, fill rate ≥ 80% and propellant combustion ≥ 95%. Use the sliders above the tables to adjust these thresholds.
Charge: Powder weight in grains. Start with the minimum load and work up carefully.
FR (Fill Rate): Case fill as a percentage. Values above 100% mean compressed loads.
MaxP / %: Maximum chamber pressure in bar and as a percentage of the standardized maximum for this caliber.
V(0): Muzzle velocity in feet per second (fps) at the standardized barrel length.
z (Powder Burn): Estimated propellant combustion percentage at bullet exit.
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Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 88% | 55,680 psi | 88% | 2657 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,083 psi | 83% | 2694 fps | 100% |
| Accurate 2230 | <<locked>> | 92% | 55,376 psi | 88% | 2782 fps | 96% |
| Accurate 2460 | <<locked>> | 98% | 54,476 psi | 86% | 2753 fps | 99.3% |
| Accurate 2495ᴾ | <<locked>> | 100% | 39,436 psi | 63% | 2569 fps | 99.5% |
| Accurate 2520ᴾ | <<locked>> | 100% | 51,039 psi | 81% | 2746 fps | 98.7% |
| Accurate 4064ᴾ | <<locked>> | 100% | 36,709 psi | 58% | 2533 fps | 97.1% |
| Accurate LT-30 | <<locked>> | 94% | 56,217 psi | 89% | 2667 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 94% | 56,724 psi | 90% | 2680 fps | 99.2% |
| ADI AR 2207 | <<locked>> | 92% | 55,738 psi | 88% | 2700 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 54,128 psi | 86% | 2769 fps | 99.8% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 51,532 psi | 82% | 2710 fps | 97.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 48,254 psi | 76% | 2720 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 55,201 psi | 87% | 2858 fps | 97.4% |
| Alliant Reloder-10x | <<locked>> | 98% | 56,014 psi | 89% | 2759 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 54,099 psi | 86% | 2671 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 54,433 psi | 86% | 2664 fps | 99.9% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 54,694 psi | 87% | 2713 fps | 98.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 48,385 psi | 77% | 2726 fps | 97.3% |
| Hodgdon H322 | <<locked>> | 98% | 55,622 psi | 88% | 2792 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 96% | 53,476 psi | 85% | 2766 fps | 99.4% |
| Hodgdon H4198 | <<locked>> | 90% | 54,969 psi | 87% | 2671 fps | 99.7% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 48,356 psi | 77% | 2700 fps | 95.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,169 psi | 51% | 1604 fps | 100% |
| IMR 3031ᴾ | <<locked>> | 100% | 45,629 psi | 72% | 2707 fps | 99.7% |
| IMR 4198 | <<locked>> | 96% | 54,389 psi | 86% | 2690 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 54,882 psi | 87% | 2625 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 51,532 psi | 82% | 2710 fps | 97.2% |
| Lovex D073.4 | <<locked>> | 92% | 55,796 psi | 88% | 2779 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 98% | 54,810 psi | 87% | 2759 fps | 98.5% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 44,730 psi | 71% | 2661 fps | 97.7% |
| Lovex S053 | <<locked>> | 88% | 56,376 psi | 89% | 2608 fps | 100% |
| Norma 200 | <<locked>> | 94% | 56,318 psi | 89% | 2743 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 46,543 psi | 74% | 2638 fps | 96.3% |
| Norma 202ᴾ | <<locked>> | 100% | 46,644 psi | 74% | 2664 fps | 98.6% |
| Ramshot X-Terminator | <<locked>> | 98% | 54,027 psi | 86% | 2717 fps | 96% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 31,937 psi | 51% | 1640 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 54,752 psi | 87% | 2661 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 55,187 psi | 87% | 2766 fps | 98.9% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 50,386 psi | 80% | 2690 fps | 98.9% |
| Shooters World AR Plus | <<locked>> | 92% | 55,796 psi | 88% | 2779 fps | 99.1% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 44,730 psi | 71% | 2661 fps | 97.7% |
| Shooters World Tactical Rifle | <<locked>> | 96% | 56,956 psi | 90% | 2740 fps | 97.6% |
| SNPE Vectan BA6 1/2 | <<locked>> | 92% | 56,971 psi | 90% | 2461 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 54,737 psi | 87% | 2776 fps | 99.4% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 54,114 psi | 86% | 2730 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 50,357 psi | 80% | 2625 fps | 98.9% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 40,219 psi | 64% | 2474 fps | 98.2% |
| Somchem S321ᴾ | <<locked>> | 100% | 56,550 psi | 90% | 2808 fps | 98.3% |
| Somchem S335ᴾ | <<locked>> | 100% | 48,457 psi | 77% | 2618 fps | 99.3% |
| Vihtavuori N110 | <<locked>> | 82% | 55,303 psi | 88% | 2510 fps | 100% |
| Vihtavuori N120 | <<locked>> | 92% | 55,782 psi | 88% | 2651 fps | 100% |
| Vihtavuori N130ᴾ | <<locked>> | 100% | 56,739 psi | 90% | 2707 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 49,516 psi | 78% | 2625 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 41,234 psi | 65% | 2582 fps | 99.6% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 43,976 psi | 70% | 2592 fps | 98.4% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 52,199 psi | 83% | 2713 fps | 97.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 42,438 psi | 67% | 2582 fps | 97.6% |
| Winchester 748ᴾ | <<locked>> | 100% | 49,777 psi | 79% | 2746 fps | 97.8% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 42,554 psi | 67% | 2467 fps | 99.9% |
| Accurate 2015 | <<locked>> | 80% | 27,412 psi | 43% | 2231 fps | 96.1% |
| Accurate 2230 | <<locked>> | 90% | 51,271 psi | 81% | 2720 fps | 95.1% |
| Accurate 2460 | <<locked>> | 84% | 33,388 psi | 53% | 2388 fps | 95% |
| Accurate 2495 | <<locked>> | 86% | 24,352 psi | 39% | 2224 fps | 95.2% |
| Accurate 2520 | <<locked>> | 90% | 35,737 psi | 57% | 2480 fps | 95.4% |
| Accurate 4064 | <<locked>> | 96% | 32,126 psi | 51% | 2434 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 36,463 psi | 58% | 2346 fps | 97.5% |
| Accurate LT-32 | <<locked>> | 80% | 36,840 psi | 58% | 2352 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 38,218 psi | 61% | 2444 fps | 100% |
| ADI AR 2219 | 40.1 gr | 80% | 33,620 psi | 53% | 2408 fps | 96.5% |
| ADI Benchmark 8208 | <<locked>> | 94% | 42,627 psi | 68% | 2566 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 25,266 psi | 40% | 2238 fps | 97.7% |
| Alliant Power Pro 1200-R | 44.7 gr | 92% | 45,266 psi | 72% | 2697 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 31,966 psi | 51% | 2352 fps | 98.7% |
| Alliant Reloder-7 | <<locked>> | 80% | 39,595 psi | 63% | 2448 fps | 99.9% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 34,621 psi | 55% | 2333 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 90% | 40,277 psi | 64% | 2474 fps | 95.2% |
| Hodgdon BL-C2 | <<locked>> | 94% | 39,247 psi | 62% | 2566 fps | 95% |
| Hodgdon H322 | <<locked>> | 80% | 30,763 psi | 49% | 2336 fps | 95.3% |
| Hodgdon H335 | <<locked>> | 82% | 33,214 psi | 53% | 2402 fps | 95.1% |
| Hodgdon H4198 | <<locked>> | 80% | 40,306 psi | 64% | 2434 fps | 97.8% |
| Hodgdon H4895 | <<locked>> | 98% | 45,324 psi | 72% | 2648 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,540 psi | 37% | 1430 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 29,283 psi | 46% | 2359 fps | 95.7% |
| IMR 4198 | <<locked>> | 80% | 33,866 psi | 54% | 2346 fps | 99.5% |
| IMR 4227 | <<locked>> | 80% | 45,934 psi | 73% | 2500 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 42,627 psi | 68% | 2566 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 35,984 psi | 57% | 2448 fps | 95.1% |
| Lovex D073.5 | <<locked>> | 88% | 38,421 psi | 61% | 2493 fps | 95.2% |
| Lovex D073.6 | <<locked>> | 94% | 36,201 psi | 57% | 2503 fps | 95.5% |
| Lovex S053 | <<locked>> | 80% | 44,657 psi | 71% | 2451 fps | 100% |
| Norma 200 | <<locked>> | 80% | 35,868 psi | 57% | 2421 fps | 99.7% |
| Norma 201 | <<locked>> | 98% | 43,830 psi | 69% | 2592 fps | 95.6% |
| Norma 202 | <<locked>> | 90% | 33,721 psi | 53% | 2418 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 96% | 50,705 psi | 80% | 2667 fps | 95.3% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,250 psi | 37% | 1460 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 45,469 psi | 72% | 2530 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 86% | 37,333 psi | 59% | 2464 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 88% | 35,143 psi | 56% | 2411 fps | 95.6% |
| Shooters World AR Plus | <<locked>> | 80% | 35,984 psi | 57% | 2448 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 94% | 36,201 psi | 57% | 2503 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 46,180 psi | 73% | 2582 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,466 psi | 66% | 2264 fps | 100% |
| SNPE Vectan SP 10 | 41.5 gr | 80% | 33,924 psi | 54% | 2408 fps | 95.3% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 32,489 psi | 51% | 2352 fps | 97.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 34,577 psi | 55% | 2346 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 31,531 psi | 50% | 2297 fps | 95.6% |
| Somchem S321 | <<locked>> | 92% | 42,786 psi | 68% | 2592 fps | 95.6% |
| Somchem S335 | <<locked>> | 86% | 31,531 psi | 50% | 2303 fps | 95.6% |
| Vihtavuori N110 | <<locked>> | 80% | 52,257 psi | 83% | 2474 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 38,392 psi | 61% | 2408 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 30,632 psi | 49% | 2267 fps | 98% |
| Vihtavuori N133 | <<locked>> | 80% | 26,585 psi | 42% | 2175 fps | 95.4% |
| Vihtavuori N135 | <<locked>> | 86% | 26,455 psi | 42% | 2254 fps | 95.8% |
| Vihtavuori N140 | <<locked>> | 90% | 31,995 psi | 51% | 2352 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 94% | 42,525 psi | 67% | 2559 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 94% | 34,853 psi | 55% | 2434 fps | 95.5% |
| Winchester 748 | <<locked>> | 94% | 40,843 psi | 65% | 2589 fps | 95.7% |
Recommended = one of the top powders for this cartridge and bullet combination.
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 59 powders for .338-06 A-Square loaded with the .338 | 176gr | CutEdge ER Raptor. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,858 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,858 fps. Accurate 2015 gives the best case fill at 100 %, and 59 of the 59 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 51–90 %, leaving at least 10 % headroom. The 176.0 gr projectile in 0.338" calls for a 1:10.5 twist; slower twists will usually not stabilise this weight. Accurate 2015, Accurate 2495, Accurate 2520 reach 100 % fill or more at maximum charge, so these are compressed loads: they need a long drop tube to seat cleanly and react sensitively to the case capacity of your own brass lot. Alliant Power Pro 1200-R, SNPE Vectan SP 10, ADI AR 2219 rank at the top here: for .338-06 A-Square with the .338 | 176gr | CutEdge ER Raptor they combine a high case fill with complete burn and sit in the upper velocity band. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.