Load Specifications
Load data in caliber .300 CR with .308 | 150gr | Barnes RRLP bullet and 64 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, Hodgdon H335 and Hodgdon H322.
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% | 56,318 psi | 90% | 2612 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 2648 fps | 100% |
| Accurate 2200 | <<locked>> | 92% | 56,231 psi | 90% | 2733 fps | 95.9% |
| Accurate 2460 | <<locked>> | 98% | 55,840 psi | 90% | 2713 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,162 psi | 66% | 2546 fps | 99.7% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,373 psi | 84% | 2710 fps | 99% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,290 psi | 61% | 2513 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 53,679 psi | 86% | 2582 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 92% | 54,201 psi | 87% | 2592 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 90% | 53,229 psi | 85% | 2612 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 55,259 psi | 89% | 2730 fps | 99.9% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,156 psi | 84% | 2667 fps | 97.4% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,429 psi | 79% | 2680 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 56,420 psi | 90% | 2818 fps | 97.7% |
| Alliant Reloder-10x | <<locked>> | 96% | 54,027 psi | 87% | 2677 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 55,172 psi | 88% | 2628 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 55,332 psi | 89% | 2621 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 55,492 psi | 89% | 2667 fps | 98.4% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,545 psi | 79% | 2690 fps | 97.6% |
| Hodgdon CFE223ᴾ | <<locked>> | 100% | 56,086 psi | 90% | 2822 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 96% | 52,968 psi | 85% | 2700 fps | 99.8% |
| Hodgdon H335 | <<locked>> | 96% | 54,288 psi | 87% | 2723 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 90% | 55,593 psi | 89% | 2625 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,139 psi | 79% | 2661 fps | 96.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,605 psi | 52% | 1572 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 48,269 psi | 77% | 2618 fps | 95.7% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,601 psi | 75% | 2667 fps | 99.8% |
| IMR 4198 | <<locked>> | 96% | 55,259 psi | 89% | 2644 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 55,680 psi | 89% | 2579 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,156 psi | 84% | 2667 fps | 97.4% |
| Lovex D073.4 | <<locked>> | 90% | 52,808 psi | 85% | 2680 fps | 98.8% |
| Lovex D073.5 | <<locked>> | 98% | 55,753 psi | 89% | 2713 fps | 98.7% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 45,919 psi | 74% | 2625 fps | 98% |
| Lovex S053 | <<locked>> | 86% | 54,259 psi | 87% | 2526 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2598 fps | 95.8% |
| Norma 200 | <<locked>> | 92% | 54,027 psi | 87% | 2654 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 47,848 psi | 77% | 2605 fps | 96.7% |
| Norma 202ᴾ | <<locked>> | 100% | 47,616 psi | 76% | 2625 fps | 98.9% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 51,474 psi | 83% | 2690 fps | 95.8% |
| Ramshot X-Terminator | <<locked>> | 98% | 54,824 psi | 88% | 2674 fps | 96.3% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,329 psi | 52% | 1604 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 55,941 psi | 90% | 2618 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 56,260 psi | 90% | 2726 fps | 99.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,054 psi | 83% | 2657 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 44,947 psi | 72% | 2549 fps | 96% |
| Shooters World AR Plus | <<locked>> | 90% | 52,808 psi | 85% | 2680 fps | 98.8% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 45,919 psi | 74% | 2625 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 53,983 psi | 87% | 2648 fps | 97.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,723 psi | 88% | 2382 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 55,637 psi | 89% | 2733 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 54,868 psi | 88% | 2684 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,416 psi | 82% | 2585 fps | 99.1% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,104 psi | 66% | 2441 fps | 98.5% |
| Somchem S321 | <<locked>> | 98% | 53,722 psi | 86% | 2713 fps | 98% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,632 psi | 80% | 2585 fps | 99.5% |
| Vihtavuori N110 | <<locked>> | 82% | 56,260 psi | 90% | 2464 fps | 100% |
| Vihtavuori N120 | <<locked>> | 90% | 53,229 psi | 85% | 2566 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,592 psi | 88% | 2625 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,473 psi | 81% | 2582 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,337 psi | 68% | 2549 fps | 99.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,034 psi | 72% | 2559 fps | 98.7% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,301 psi | 85% | 2674 fps | 97.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,555 psi | 70% | 2552 fps | 98% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,923 psi | 82% | 2710 fps | 98.1% |
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% | 43,656 psi | 70% | 2434 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,601 psi | 46% | 2208 fps | 96.8% |
| Accurate 2200 | <<locked>> | 90% | 52,605 psi | 84% | 2680 fps | 95.1% |
| Accurate 2460 | <<locked>> | 84% | 34,635 psi | 56% | 2365 fps | 95.6% |
| Accurate 2495 | <<locked>> | 84% | 24,192 psi | 39% | 2172 fps | 95.4% |
| Accurate 2520 | <<locked>> | 88% | 34,403 psi | 55% | 2402 fps | 95.1% |
| Accurate 4064 | <<locked>> | 94% | 31,531 psi | 51% | 2369 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 37,376 psi | 60% | 2316 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 37,768 psi | 61% | 2320 fps | 96% |
| ADI AR 2207 | <<locked>> | 80% | 39,349 psi | 63% | 2408 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,447 psi | 55% | 2375 fps | 96.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,439 psi | 70% | 2526 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 26,223 psi | 42% | 2218 fps | 98.3% |
| Alliant Power Pro 1200-R | 35.9 gr | 92% | 46,238 psi | 74% | 2661 fps | 95.7% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,069 psi | 53% | 2326 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,625 psi | 65% | 2411 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,447 psi | 57% | 2303 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 90% | 41,321 psi | 66% | 2444 fps | 95.7% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,422 psi | 65% | 2536 fps | 95.5% |
| Hodgdon CFE223 | <<locked>> | 98% | 52,185 psi | 84% | 2762 fps | 95.3% |
| Hodgdon H322 | 31.2 gr | 80% | 31,749 psi | 51% | 2313 fps | 95.9% |
| Hodgdon H335 | 34.2 gr | 82% | 34,084 psi | 55% | 2372 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 41,234 psi | 66% | 2402 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 98% | 46,485 psi | 75% | 2615 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,859 psi | 38% | 1398 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 45,310 psi | 73% | 2569 fps | 95% |
| IMR 3031 | <<locked>> | 84% | 28,413 psi | 46% | 2283 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 34,780 psi | 56% | 2316 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 46,717 psi | 75% | 2457 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 43,439 psi | 70% | 2526 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 37,376 psi | 60% | 2421 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 88% | 39,740 psi | 64% | 2467 fps | 95.7% |
| Lovex D073.6 | <<locked>> | 92% | 35,027 psi | 56% | 2428 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,759 psi | 73% | 2411 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 48,211 psi | 77% | 2549 fps | 95.1% |
| Norma 200 | <<locked>> | 80% | 37,159 psi | 60% | 2392 fps | 99.9% |
| Norma 201 | <<locked>> | 96% | 42,395 psi | 68% | 2513 fps | 95.4% |
| Norma 202 | <<locked>> | 88% | 32,692 psi | 52% | 2346 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 98% | 48,327 psi | 77% | 2641 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 96% | 51,576 psi | 83% | 2628 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,757 psi | 38% | 1430 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,485 psi | 75% | 2490 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 35,824 psi | 57% | 2382 fps | 95% |
| Rottweil R 901 | <<locked>> | 86% | 34,476 psi | 55% | 2343 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 98% | 42,409 psi | 68% | 2503 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 37,376 psi | 60% | 2421 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 35,027 psi | 56% | 2428 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 43,947 psi | 70% | 2493 fps | 95.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,192 psi | 68% | 2221 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,041 psi | 56% | 2382 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,431 psi | 54% | 2323 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,359 psi | 53% | 2270 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,414 psi | 49% | 2221 fps | 95.4% |
| Somchem S321 | <<locked>> | 90% | 40,886 psi | 66% | 2507 fps | 95.3% |
| Somchem S335 | <<locked>> | 84% | 30,676 psi | 49% | 2231 fps | 95.4% |
| Vihtavuori N110 | <<locked>> | 80% | 53,011 psi | 85% | 2425 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 39,508 psi | 63% | 2372 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,662 psi | 51% | 2241 fps | 98.5% |
| Vihtavuori N133 | <<locked>> | 80% | 27,514 psi | 44% | 2152 fps | 96% |
| Vihtavuori N135 | <<locked>> | 84% | 25,846 psi | 41% | 2185 fps | 95.7% |
| Vihtavuori N140 | <<locked>> | 90% | 32,866 psi | 53% | 2326 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 94% | 43,642 psi | 70% | 2526 fps | 95.7% |
| Vihtavuori N540 | <<locked>> | 92% | 33,765 psi | 54% | 2362 fps | 95.3% |
| Winchester 748 | <<locked>> | 92% | 39,160 psi | 63% | 2503 fps | 95.3% |
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 64 powders for .300 CR loaded with the .308 | 150gr | Barnes RRLP. Hodgdon CFE223 delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,572 fps to 2,822 fps. Accurate 2015 gives the best case fill at 100 %, and 64 of the 64 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 52–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:11.0 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, Hodgdon H335, Hodgdon H322 rank at the top here: for .300 CR with the .308 | 150gr | Barnes RRLP 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.