Load Specifications
Load data in caliber .300 CR with .308 | 150gr | Lapua Mega bullet and 65 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 H322 and Shooters World AR Plus.
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>> | 86% | 53,316 psi | 85% | 2575 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,403 psi | 86% | 2657 fps | 100% |
| Accurate 2200 | <<locked>> | 92% | 56,130 psi | 90% | 2736 fps | 95.9% |
| Accurate 2230 | <<locked>> | 92% | 56,420 psi | 90% | 2743 fps | 96.4% |
| Accurate 2460 | <<locked>> | 98% | 55,738 psi | 89% | 2717 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 41,510 psi | 67% | 2552 fps | 99.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,388 psi | 84% | 2710 fps | 99% |
| Accurate 4064ᴾ | <<locked>> | 100% | 38,638 psi | 62% | 2520 fps | 97.8% |
| Accurate LT-30 | <<locked>> | 92% | 53,621 psi | 86% | 2582 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 92% | 54,143 psi | 87% | 2595 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 90% | 53,679 psi | 86% | 2621 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 55,637 psi | 89% | 2736 fps | 99.9% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,518 psi | 84% | 2677 fps | 97.5% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,414 psi | 79% | 2684 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 56,405 psi | 90% | 2822 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,998 psi | 87% | 2680 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 55,216 psi | 89% | 2631 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 55,753 psi | 89% | 2628 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 55,927 psi | 90% | 2677 fps | 98.5% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,922 psi | 80% | 2697 fps | 97.7% |
| Hodgdon CFE223ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2822 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 96% | 53,403 psi | 86% | 2707 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 96% | 54,665 psi | 88% | 2730 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 90% | 56,028 psi | 90% | 2631 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2667 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,430 psi | 52% | 1572 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 48,646 psi | 78% | 2628 fps | 95.9% |
| IMR 3031ᴾ | <<locked>> | 100% | 47,007 psi | 75% | 2677 fps | 99.8% |
| IMR 4198 | <<locked>> | 96% | 55,245 psi | 89% | 2648 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 56,202 psi | 90% | 2585 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,518 psi | 84% | 2677 fps | 97.5% |
| Lovex D073.4 | <<locked>> | 90% | 53,156 psi | 85% | 2687 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 98% | 56,130 psi | 90% | 2723 fps | 98.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2635 fps | 98.1% |
| Lovex S053 | <<locked>> | 86% | 54,302 psi | 87% | 2530 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,285 psi | 82% | 2602 fps | 95.9% |
| Norma 200 | <<locked>> | 92% | 54,447 psi | 87% | 2661 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 48,196 psi | 77% | 2612 fps | 96.8% |
| Norma 202ᴾ | <<locked>> | 100% | 47,964 psi | 77% | 2635 fps | 98.9% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 51,822 psi | 83% | 2697 fps | 95.9% |
| Ramshot X-Terminator | <<locked>> | 98% | 55,158 psi | 88% | 2684 fps | 96.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,518 psi | 52% | 1611 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 55,927 psi | 90% | 2618 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 96% | 53,113 psi | 85% | 2684 fps | 98.8% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 52,011 psi | 83% | 2657 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 45,237 psi | 73% | 2556 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 90% | 53,156 psi | 85% | 2687 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,296 psi | 74% | 2635 fps | 98.1% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 54,360 psi | 87% | 2654 fps | 97.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 55,216 psi | 89% | 2388 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 56,028 psi | 90% | 2740 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 55,317 psi | 89% | 2690 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,750 psi | 83% | 2592 fps | 99.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,452 psi | 66% | 2448 fps | 98.5% |
| Somchem S321 | <<locked>> | 98% | 53,621 psi | 86% | 2717 fps | 98% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,966 psi | 80% | 2592 fps | 99.5% |
| Vihtavuori N110 | <<locked>> | 82% | 56,391 psi | 90% | 2467 fps | 100% |
| Vihtavuori N120 | <<locked>> | 90% | 53,708 psi | 86% | 2572 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,549 psi | 87% | 2628 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,850 psi | 82% | 2592 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,714 psi | 68% | 2556 fps | 99.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,339 psi | 73% | 2566 fps | 98.8% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,229 psi | 85% | 2677 fps | 97.7% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,816 psi | 70% | 2559 fps | 98.1% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2713 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% | 43,642 psi | 70% | 2434 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,689 psi | 46% | 2215 fps | 96.8% |
| Accurate 2200 | <<locked>> | 90% | 52,620 psi | 84% | 2680 fps | 95.2% |
| Accurate 2230 | <<locked>> | 90% | 52,779 psi | 85% | 2690 fps | 95.7% |
| Accurate 2460 | <<locked>> | 82% | 32,779 psi | 53% | 2326 fps | 95% |
| Accurate 2495 | <<locked>> | 84% | 24,236 psi | 39% | 2172 fps | 95.4% |
| Accurate 2520 | <<locked>> | 88% | 34,693 psi | 56% | 2408 fps | 95.2% |
| Accurate 4064 | <<locked>> | 94% | 31,618 psi | 51% | 2372 fps | 95.6% |
| Accurate LT-30 | <<locked>> | 80% | 37,434 psi | 60% | 2320 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 37,826 psi | 61% | 2323 fps | 96% |
| ADI AR 2207 | <<locked>> | 80% | 39,450 psi | 63% | 2411 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,766 psi | 56% | 2385 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,801 psi | 70% | 2536 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 26,237 psi | 42% | 2221 fps | 98.3% |
| Alliant Power Pro 1200-R | 35.3 gr | 90% | 43,598 psi | 70% | 2615 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 33,185 psi | 53% | 2329 fps | 99% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,683 psi | 65% | 2415 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,476 psi | 57% | 2303 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 39,146 psi | 63% | 2405 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,741 psi | 65% | 2543 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 98% | 52,533 psi | 84% | 2772 fps | 95.4% |
| Hodgdon H322 | 31.3 gr | 80% | 31,807 psi | 51% | 2316 fps | 96% |
| Hodgdon H335 | <<locked>> | 82% | 34,113 psi | 55% | 2372 fps | 95.7% |
| Hodgdon H4198 | <<locked>> | 80% | 41,307 psi | 66% | 2405 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 98% | 46,456 psi | 74% | 2618 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,033 psi | 39% | 1404 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 45,643 psi | 73% | 2579 fps | 95.1% |
| IMR 3031 | <<locked>> | 84% | 28,471 psi | 46% | 2287 fps | 95.5% |
| IMR 4198 | <<locked>> | 80% | 34,867 psi | 56% | 2320 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 46,818 psi | 75% | 2461 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 43,801 psi | 70% | 2536 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 37,434 psi | 60% | 2425 fps | 95.8% |
| Lovex D073.5 | <<locked>> | 86% | 37,260 psi | 60% | 2421 fps | 95% |
| Lovex D073.6 | <<locked>> | 92% | 35,317 psi | 57% | 2434 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 45,788 psi | 73% | 2415 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 48,530 psi | 78% | 2559 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 37,521 psi | 60% | 2398 fps | 99.9% |
| Norma 201 | <<locked>> | 96% | 42,380 psi | 68% | 2513 fps | 95.5% |
| Norma 202 | <<locked>> | 88% | 32,663 psi | 52% | 2346 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 98% | 48,240 psi | 77% | 2641 fps | 95.1% |
| Ramshot X-Terminator | <<locked>> | 94% | 48,370 psi | 78% | 2582 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,946 psi | 38% | 1437 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,557 psi | 75% | 2493 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 36,129 psi | 58% | 2388 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 86% | 34,534 psi | 55% | 2346 fps | 95.6% |
| Rottweil R 902 | <<locked>> | 98% | 42,482 psi | 68% | 2507 fps | 95.4% |
| Shooters World AR Plus | 33.6 gr | 80% | 37,434 psi | 60% | 2425 fps | 95.8% |
| Shooters World Match Rifle | <<locked>> | 92% | 35,317 psi | 57% | 2434 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 43,947 psi | 70% | 2497 fps | 95.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 42,264 psi | 68% | 2224 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 35,099 psi | 56% | 2388 fps | 95.9% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,779 psi | 54% | 2329 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,707 psi | 54% | 2280 fps | 95.4% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,690 psi | 49% | 2231 fps | 95.5% |
| Somchem S321 | <<locked>> | 90% | 41,191 psi | 66% | 2516 fps | 95.4% |
| Somchem S335 | <<locked>> | 84% | 30,719 psi | 49% | 2234 fps | 95.5% |
| Vihtavuori N110 | <<locked>> | 80% | 53,577 psi | 86% | 2434 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 39,610 psi | 64% | 2375 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,995 psi | 51% | 2251 fps | 98.6% |
| Vihtavuori N133 | <<locked>> | 80% | 27,775 psi | 45% | 2159 fps | 96.2% |
| Vihtavuori N135 | <<locked>> | 84% | 25,904 psi | 42% | 2192 fps | 95.8% |
| Vihtavuori N140 | <<locked>> | 88% | 31,125 psi | 50% | 2287 fps | 95% |
| Vihtavuori N530 | <<locked>> | 92% | 41,176 psi | 66% | 2484 fps | 95% |
| Vihtavuori N540 | <<locked>> | 92% | 34,040 psi | 55% | 2369 fps | 95.5% |
| Winchester 748 | <<locked>> | 92% | 39,436 psi | 63% | 2513 fps | 95.5% |
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 65 powders for .300 CR loaded with the .308 | 150gr | Lapua Mega. Alliant Power Pro 1200-R 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 65 of the 65 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 1:11.5 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, Hodgdon H322, Shooters World AR Plus rank at the top here: for .300 CR with the .308 | 150gr | Lapua Mega 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.