Load Specifications
Load data in caliber .300 CR with .308 | 146.6gr | Sax KDG-S 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>> | 86% | 53,185 psi | 85% | 2628 fps | 100% |
| Accurate 2015ᴾ | <<locked>> | 100% | 53,214 psi | 85% | 2710 fps | 100% |
| Accurate 2200 | <<locked>> | 92% | 56,420 psi | 90% | 2799 fps | 96.1% |
| Accurate 2460 | <<locked>> | 98% | 55,637 psi | 89% | 2772 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 40,770 psi | 65% | 2595 fps | 99.8% |
| Accurate 2520ᴾ | <<locked>> | 100% | 52,605 psi | 84% | 2769 fps | 99.1% |
| Accurate 4064ᴾ | <<locked>> | 100% | 37,942 psi | 61% | 2559 fps | 97.7% |
| Accurate LT-30 | <<locked>> | 92% | 53,693 psi | 86% | 2638 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 92% | 54,201 psi | 87% | 2651 fps | 99.1% |
| ADI AR 2207 | <<locked>> | 90% | 53,505 psi | 86% | 2674 fps | 100% |
| ADI AR 2219 | <<locked>> | 94% | 55,259 psi | 89% | 2789 fps | 99.9% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 52,286 psi | 84% | 2726 fps | 97.6% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 49,356 psi | 79% | 2736 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 98% | 56,362 psi | 90% | 2881 fps | 97.8% |
| Alliant Reloder-10x | <<locked>> | 96% | 53,838 psi | 86% | 2733 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 90% | 55,201 psi | 89% | 2687 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 94% | 55,492 psi | 89% | 2680 fps | 100% |
| Hodgdon Benchmarkᴾ | <<locked>> | 100% | 55,753 psi | 89% | 2730 fps | 98.6% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 49,705 psi | 80% | 2749 fps | 97.8% |
| Hodgdon CFE223ᴾ | <<locked>> | 100% | 56,188 psi | 90% | 2884 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 96% | 53,505 psi | 86% | 2766 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 96% | 54,781 psi | 88% | 2785 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 90% | 55,854 psi | 90% | 2687 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 49,197 psi | 79% | 2717 fps | 96.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,111 psi | 51% | 1604 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 48,443 psi | 78% | 2680 fps | 95.9% |
| IMR 3031ᴾ | <<locked>> | 100% | 46,934 psi | 75% | 2730 fps | 99.8% |
| IMR 4198 | <<locked>> | 96% | 55,579 psi | 89% | 2707 fps | 100% |
| IMR 4227 | <<locked>> | 86% | 56,057 psi | 90% | 2641 fps | 100% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 52,286 psi | 84% | 2726 fps | 97.6% |
| Lovex D073.4 | <<locked>> | 90% | 53,040 psi | 85% | 2743 fps | 98.9% |
| Lovex D073.5 | <<locked>> | 98% | 55,840 psi | 90% | 2776 fps | 98.8% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 46,151 psi | 74% | 2687 fps | 98.2% |
| Lovex S053 | <<locked>> | 86% | 54,114 psi | 87% | 2582 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 51,184 psi | 82% | 2654 fps | 95.9% |
| Norma 200 | <<locked>> | 92% | 54,012 psi | 87% | 2713 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 47,863 psi | 77% | 2664 fps | 96.8% |
| Norma 202ᴾ | <<locked>> | 100% | 47,718 psi | 77% | 2684 fps | 98.9% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2749 fps | 96% |
| Ramshot X-Terminator | <<locked>> | 98% | 55,056 psi | 88% | 2740 fps | 96.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,097 psi | 51% | 1644 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 86% | 55,883 psi | 90% | 2674 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 98% | 56,405 psi | 90% | 2785 fps | 99.2% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2710 fps | 99.2% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 44,933 psi | 72% | 2605 fps | 96.1% |
| Shooters World AR Plus | <<locked>> | 90% | 53,040 psi | 85% | 2743 fps | 98.9% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 46,151 psi | 74% | 2687 fps | 98.2% |
| Shooters World Tactical Rifle | <<locked>> | 94% | 54,128 psi | 87% | 2707 fps | 97.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 90% | 54,824 psi | 88% | 2438 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 94% | 55,753 psi | 89% | 2795 fps | 99.6% |
| SNPE Vectan SP 3 | <<locked>> | 96% | 55,288 psi | 89% | 2746 fps | 100% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 51,358 psi | 82% | 2641 fps | 99.2% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 41,046 psi | 66% | 2493 fps | 98.5% |
| Somchem S321 | <<locked>> | 98% | 53,925 psi | 86% | 2776 fps | 98.1% |
| Somchem S335ᴾ | <<locked>> | 100% | 49,690 psi | 80% | 2641 fps | 99.5% |
| Vihtavuori N110 | <<locked>> | 82% | 56,130 psi | 90% | 2520 fps | 100% |
| Vihtavuori N120 | <<locked>> | 90% | 53,534 psi | 86% | 2625 fps | 100% |
| Vihtavuori N130 | <<locked>> | 98% | 54,723 psi | 88% | 2684 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 50,531 psi | 81% | 2641 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 42,279 psi | 68% | 2602 fps | 99.8% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 45,121 psi | 72% | 2615 fps | 98.8% |
| Vihtavuori N530ᴾ | <<locked>> | 100% | 53,432 psi | 86% | 2736 fps | 97.8% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 43,395 psi | 70% | 2605 fps | 98.1% |
| Winchester 748ᴾ | <<locked>> | 100% | 50,836 psi | 82% | 2766 fps | 98.2% |
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% | 43,381 psi | 70% | 2484 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 28,036 psi | 45% | 2247 fps | 96.6% |
| Accurate 2200 | <<locked>> | 90% | 52,475 psi | 84% | 2736 fps | 95.3% |
| Accurate 2460 | <<locked>> | 84% | 34,185 psi | 55% | 2411 fps | 95.6% |
| Accurate 2495 | <<locked>> | 84% | 23,366 psi | 37% | 2198 fps | 95% |
| Accurate 2520 | <<locked>> | 88% | 34,127 psi | 55% | 2451 fps | 95.1% |
| Accurate 4064 | <<locked>> | 94% | 31,067 psi | 50% | 2411 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 37,173 psi | 60% | 2365 fps | 97.9% |
| Accurate LT-32 | <<locked>> | 80% | 37,550 psi | 60% | 2372 fps | 96% |
| ADI AR 2207 | <<locked>> | 80% | 39,146 psi | 63% | 2461 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 34,490 psi | 55% | 2431 fps | 97% |
| ADI Benchmark 8208 | <<locked>> | 94% | 43,410 psi | 70% | 2582 fps | 95.7% |
| Alliant AR-Comp | <<locked>> | 80% | 25,730 psi | 41% | 2257 fps | 98.2% |
| Alliant Power Pro 1200-R | 36.7 gr | 90% | 43,410 psi | 70% | 2667 fps | 95.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 32,401 psi | 52% | 2365 fps | 98.9% |
| Alliant Reloder-7 | <<locked>> | 80% | 40,248 psi | 65% | 2461 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 35,360 psi | 57% | 2352 fps | 97.7% |
| Hodgdon Benchmark | <<locked>> | 88% | 38,740 psi | 62% | 2448 fps | 95% |
| Hodgdon BL-C2 | <<locked>> | 94% | 40,292 psi | 65% | 2589 fps | 95.7% |
| Hodgdon CFE223 | <<locked>> | 98% | 52,373 psi | 84% | 2825 fps | 95.5% |
| Hodgdon H322 | 32.6 gr | 80% | 31,575 psi | 51% | 2362 fps | 96% |
| Hodgdon H335 | 35.7 gr | 82% | 33,823 psi | 54% | 2418 fps | 95.6% |
| Hodgdon H4198 | <<locked>> | 80% | 41,060 psi | 66% | 2451 fps | 98.2% |
| Hodgdon H4895 | <<locked>> | 98% | 46,195 psi | 74% | 2667 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 23,699 psi | 38% | 1434 fps | 100% |
| Hodgdon VARGET | <<locked>> | 98% | 45,455 psi | 73% | 2628 fps | 95.2% |
| IMR 3031 | <<locked>> | 84% | 28,094 psi | 45% | 2326 fps | 95.4% |
| IMR 4198 | <<locked>> | 80% | 34,519 psi | 55% | 2362 fps | 99.7% |
| IMR 4227 | <<locked>> | 80% | 46,456 psi | 74% | 2510 fps | 100% |
| IMR 8208 XBR | <<locked>> | 94% | 43,410 psi | 70% | 2582 fps | 95.7% |
| Lovex D073.4 | <<locked>> | 80% | 36,854 psi | 59% | 2467 fps | 95.7% |
| Lovex D073.5 | <<locked>> | 88% | 39,378 psi | 63% | 2516 fps | 95.8% |
| Lovex D073.6 | <<locked>> | 92% | 34,737 psi | 56% | 2474 fps | 95.3% |
| Lovex S053 | <<locked>> | 80% | 45,440 psi | 73% | 2464 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 48,153 psi | 77% | 2608 fps | 95.3% |
| Norma 200 | <<locked>> | 80% | 36,738 psi | 59% | 2441 fps | 99.8% |
| Norma 201 | <<locked>> | 96% | 42,090 psi | 67% | 2562 fps | 95.5% |
| Norma 202 | <<locked>> | 88% | 32,430 psi | 52% | 2392 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 98% | 48,544 psi | 78% | 2700 fps | 95.3% |
| Ramshot X-Terminator | <<locked>> | 94% | 48,443 psi | 78% | 2638 fps | 95.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 23,511 psi | 38% | 1470 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 46,267 psi | 74% | 2543 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 84% | 35,708 psi | 57% | 2434 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 86% | 33,808 psi | 54% | 2385 fps | 95.4% |
| Rottweil R 902 | <<locked>> | 98% | 42,148 psi | 68% | 2556 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 36,854 psi | 59% | 2467 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 92% | 34,737 psi | 56% | 2474 fps | 95.3% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 43,903 psi | 70% | 2549 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 41,887 psi | 67% | 2267 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 34,621 psi | 56% | 2428 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 33,214 psi | 53% | 2372 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 33,069 psi | 53% | 2316 fps | 95.3% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 30,226 psi | 48% | 2270 fps | 95.4% |
| Somchem S321 | <<locked>> | 90% | 40,944 psi | 66% | 2566 fps | 95.4% |
| Somchem S335 | <<locked>> | 84% | 30,197 psi | 48% | 2274 fps | 95.3% |
| Vihtavuori N110 | <<locked>> | 80% | 52,939 psi | 85% | 2480 fps | 100% |
| Vihtavuori N120 | <<locked>> | 80% | 39,363 psi | 63% | 2421 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 31,285 psi | 50% | 2287 fps | 98.4% |
| Vihtavuori N133 | <<locked>> | 80% | 27,166 psi | 44% | 2195 fps | 96% |
| Vihtavuori N135 | <<locked>> | 84% | 25,440 psi | 41% | 2228 fps | 95.6% |
| Vihtavuori N140 | <<locked>> | 90% | 32,851 psi | 53% | 2379 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 92% | 40,799 psi | 65% | 2530 fps | 95% |
| Vihtavuori N540 | <<locked>> | 92% | 33,518 psi | 54% | 2408 fps | 95.3% |
| Winchester 748 | <<locked>> | 92% | 38,928 psi | 62% | 2556 fps | 95.4% |
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 | 146.6gr | Sax KDG-S. Hodgdon CFE223 delivers the highest muzzle velocity at 2,884 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,884 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 51–90 %, leaving at least 10 % headroom. The 146.6 gr projectile in 0.308" calls for a 1:12.5 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 H335, Hodgdon H322 rank at the top here: for .300 CR with the .308 | 146.6gr | Sax KDG-S 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.