Load Specifications
Load data in caliber .300 CR with .308 | 150gr | Swift A-Frame bullet and 82 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, ADI AR 2219 and Hodgdon H335.
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>> | 84% | 54,969 psi | 88% | 2651 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 56,391 psi | 90% | 2746 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 54,955 psi | 88% | 2785 fps | 96.8% |
| Accurate 2230 | <<locked>> | 88% | 55,506 psi | 89% | 2795 fps | 97.2% |
| Accurate 2460 | <<locked>> | 94% | 55,477 psi | 89% | 2769 fps | 99.8% |
| Accurate 2495ᴾ | <<locked>> | 100% | 48,182 psi | 77% | 2697 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 56,144 psi | 90% | 2818 fps | 99.8% |
| Accurate 4064ᴾ | <<locked>> | 100% | 44,701 psi | 72% | 2674 fps | 99.4% |
| Accurate LT-30 | <<locked>> | 90% | 55,419 psi | 89% | 2667 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 55,912 psi | 90% | 2684 fps | 99.7% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 55,651 psi | 89% | 2812 fps | 97.8% |
| ADI AR 2207 | <<locked>> | 88% | 56,072 psi | 90% | 2697 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 54,636 psi | 88% | 2779 fps | 100% |
| ADI Benchmark 8208 | <<locked>> | 98% | 55,317 psi | 89% | 2779 fps | 98.7% |
| Alliant AR-Comp | <<locked>> | 98% | 52,968 psi | 85% | 2776 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 92% | 52,881 psi | 85% | 2831 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 44,933 psi | 72% | 2667 fps | 96.7% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,650 psi | 86% | 2723 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2736 fps | 96% |
| Alliant Reloder-7 | <<locked>> | 86% | 54,143 psi | 87% | 2671 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 54,215 psi | 87% | 2667 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 55,405 psi | 89% | 2818 fps | 96.5% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,512 psi | 71% | 2674 fps | 96.7% |
| Hodgdon Benchmark | <<locked>> | 96% | 55,100 psi | 88% | 2730 fps | 99.1% |
| Hodgdon BL-C2 | <<locked>> | 98% | 53,171 psi | 85% | 2802 fps | 99% |
| Hodgdon CFE223 | <<locked>> | 96% | 55,390 psi | 89% | 2887 fps | 97.2% |
| Hodgdon H322 | <<locked>> | 94% | 56,275 psi | 90% | 2802 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,896 psi | 86% | 2776 fps | 99.8% |
| Hodgdon H4198 | <<locked>> | 86% | 54,186 psi | 87% | 2671 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 55,970 psi | 90% | 2825 fps | 98.3% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,401 psi | 81% | 2789 fps | 97.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,228 psi | 53% | 1631 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 54,273 psi | 87% | 2779 fps | 98% |
| IMR 3031ᴾ | <<locked>> | 100% | 53,635 psi | 86% | 2825 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 49,429 psi | 79% | 2684 fps | 96% |
| IMR 4198 | <<locked>> | 92% | 54,723 psi | 88% | 2690 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 54,128 psi | 87% | 2615 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 50,343 psi | 81% | 2769 fps | 97% |
| IMR 8208 XBR | <<locked>> | 98% | 55,317 psi | 89% | 2779 fps | 98.7% |
| Lovex D073.4 | <<locked>> | 88% | 56,246 psi | 90% | 2789 fps | 99.7% |
| Lovex D073.5 | <<locked>> | 94% | 55,840 psi | 90% | 2779 fps | 99.4% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2792 fps | 99.6% |
| Lovex S053 | <<locked>> | 84% | 56,318 psi | 90% | 2602 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,563 psi | 86% | 2700 fps | 97.4% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2687 fps | 97.8% |
| Norma 200 | <<locked>> | 88% | 53,882 psi | 86% | 2703 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 54,085 psi | 87% | 2762 fps | 98.6% |
| Norma 202ᴾ | <<locked>> | 100% | 54,302 psi | 87% | 2782 fps | 99.9% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,225 psi | 77% | 2723 fps | 96.5% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 48,704 psi | 78% | 2736 fps | 96.1% |
| Ramshot Wild Boar | <<locked>> | 98% | 55,042 psi | 88% | 2808 fps | 97.6% |
| Ramshot X-Terminator | <<locked>> | 94% | 54,070 psi | 87% | 2733 fps | 97.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,301 psi | 53% | 1670 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,447 psi | 87% | 2651 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 55,811 psi | 89% | 2782 fps | 99.6% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 51,634 psi | 83% | 2838 fps | 96.5% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 42,989 psi | 69% | 2697 fps | 97.6% |
| Rottweil R 901 | <<locked>> | 98% | 55,434 psi | 89% | 2766 fps | 99.8% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,068 psi | 82% | 2707 fps | 98.2% |
| Shooters World AR Plus | <<locked>> | 88% | 56,246 psi | 90% | 2789 fps | 99.7% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2792 fps | 99.6% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,211 psi | 77% | 2687 fps | 97.8% |
| Shooters World Tactical Rifle | <<locked>> | 90% | 53,026 psi | 85% | 2700 fps | 98.1% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 53,780 psi | 86% | 2418 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 55,071 psi | 88% | 2785 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,810 psi | 88% | 2740 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,954 psi | 87% | 2782 fps | 97.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 54,331 psi | 87% | 2687 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,543 psi | 75% | 2585 fps | 99.7% |
| Somchem S321 | <<locked>> | 94% | 53,301 psi | 85% | 2772 fps | 98.7% |
| Somchem S335ᴾ | <<locked>> | 100% | 55,709 psi | 89% | 2726 fps | 100% |
| Somchem S341 | <<locked>> | 98% | 53,185 psi | 85% | 2753 fps | 97.1% |
| Vihtavuori N120 | <<locked>> | 88% | 56,028 psi | 90% | 2648 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 54,041 psi | 87% | 2674 fps | 100% |
| Vihtavuori N133 | <<locked>> | 98% | 53,563 psi | 86% | 2680 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,950 psi | 78% | 2697 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,329 psi | 82% | 2710 fps | 99.8% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,104 psi | 66% | 2556 fps | 96.7% |
| Vihtavuori N530 | <<locked>> | 98% | 56,391 psi | 90% | 2785 fps | 98.9% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,458 psi | 79% | 2700 fps | 99.5% |
| Winchester 748 | <<locked>> | 98% | 54,099 psi | 87% | 2822 fps | 99.3% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2792 fps | 97.9% |
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% | 47,993 psi | 77% | 2556 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 32,401 psi | 52% | 2343 fps | 98.7% |
| Accurate 2200 | <<locked>> | 84% | 48,167 psi | 77% | 2674 fps | 95.3% |
| Accurate 2230 | <<locked>> | 82% | 45,020 psi | 72% | 2628 fps | 95% |
| Accurate 2460 | <<locked>> | 80% | 34,751 psi | 56% | 2415 fps | 96.7% |
| Accurate 2495 | <<locked>> | 80% | 24,772 psi | 40% | 2218 fps | 96.5% |
| Accurate 2520 | <<locked>> | 82% | 32,285 psi | 52% | 2398 fps | 95.3% |
| Accurate 4064 | <<locked>> | 86% | 28,572 psi | 46% | 2333 fps | 95.3% |
| Accurate LT-30 | <<locked>> | 80% | 41,046 psi | 66% | 2444 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 41,423 psi | 66% | 2451 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 43,410 psi | 70% | 2612 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 43,903 psi | 70% | 2526 fps | 100% |
| ADI AR 2219 | 36.3 gr | 80% | 39,073 psi | 63% | 2526 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 38,043 psi | 61% | 2480 fps | 95.1% |
| Alliant AR-Comp | <<locked>> | 80% | 29,718 psi | 48% | 2362 fps | 99.7% |
| Alliant Power Pro 1200-R | 36.9 gr | 84% | 40,741 psi | 65% | 2615 fps | 95.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 39,407 psi | 63% | 2562 fps | 95.2% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,072 psi | 59% | 2454 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 46,122 psi | 74% | 2684 fps | 95.3% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,208 psi | 72% | 2539 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,479 psi | 63% | 2434 fps | 99.2% |
| Baschieri & Pellagri 107 | <<locked>> | 96% | 48,530 psi | 78% | 2710 fps | 95% |
| Bofors RP3 | <<locked>> | 96% | 38,798 psi | 62% | 2566 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,042 psi | 58% | 2392 fps | 95.1% |
| Hodgdon BL-C2 | <<locked>> | 86% | 35,346 psi | 57% | 2487 fps | 95% |
| Hodgdon CFE223 | <<locked>> | 92% | 48,356 psi | 78% | 2772 fps | 95.7% |
| Hodgdon H322 | <<locked>> | 80% | 35,752 psi | 57% | 2457 fps | 98.1% |
| Hodgdon H335 | 37.5 gr | 80% | 35,984 psi | 58% | 2464 fps | 97.2% |
| Hodgdon H4198 | <<locked>> | 80% | 45,223 psi | 73% | 2530 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 40,901 psi | 66% | 2572 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,640 psi | 67% | 2631 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,439 psi | 39% | 1453 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 42,250 psi | 68% | 2575 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 28,311 psi | 45% | 2329 fps | 96.5% |
| IMR 4064 | <<locked>> | 98% | 46,296 psi | 74% | 2631 fps | 95.3% |
| IMR 4198 | <<locked>> | 80% | 38,580 psi | 62% | 2441 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,981 psi | 82% | 2572 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 44,150 psi | 71% | 2664 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 86% | 38,043 psi | 61% | 2480 fps | 95.1% |
| Lovex D073.4 | <<locked>> | 80% | 42,337 psi | 68% | 2572 fps | 97.9% |
| Lovex D073.5 | <<locked>> | 80% | 34,490 psi | 55% | 2408 fps | 95.1% |
| Lovex D073.6 | <<locked>> | 86% | 33,199 psi | 53% | 2434 fps | 95.7% |
| Lovex S053 | <<locked>> | 80% | 50,140 psi | 80% | 2523 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 45,005 psi | 72% | 2562 fps | 95.6% |
| Lovex S062 | <<locked>> | 92% | 37,695 psi | 60% | 2493 fps | 95.2% |
| Norma 200 | <<locked>> | 80% | 41,872 psi | 67% | 2523 fps | 100% |
| Norma 201 | <<locked>> | 88% | 37,449 psi | 60% | 2470 fps | 95% |
| Norma 202 | <<locked>> | 82% | 30,719 psi | 49% | 2343 fps | 95.5% |
| Norma 203B | <<locked>> | 96% | 42,351 psi | 68% | 2618 fps | 95% |
| Ramshot Big Game | <<locked>> | 98% | 45,730 psi | 73% | 2684 fps | 95.3% |
| Ramshot Wild Boar | <<locked>> | 92% | 44,730 psi | 72% | 2644 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 88% | 44,599 psi | 72% | 2579 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,642 psi | 40% | 1493 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 51,401 psi | 82% | 2612 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 35,491 psi | 57% | 2428 fps | 95.9% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 48,298 psi | 77% | 2785 fps | 95.7% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 37,913 psi | 61% | 2585 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 32,619 psi | 52% | 2346 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 90% | 37,724 psi | 60% | 2467 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 42,337 psi | 68% | 2572 fps | 97.9% |
| Shooters World Match Rifle | <<locked>> | 86% | 33,199 psi | 53% | 2434 fps | 95.7% |
| Shooters World Precision | <<locked>> | 92% | 37,695 psi | 60% | 2493 fps | 95.2% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 40,176 psi | 64% | 2487 fps | 95.3% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 45,847 psi | 74% | 2316 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 39,465 psi | 63% | 2526 fps | 98% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 37,681 psi | 60% | 2461 fps | 99.1% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 44,556 psi | 71% | 2628 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,140 psi | 50% | 2270 fps | 95.5% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 28,572 psi | 46% | 2228 fps | 95.7% |
| Somchem S321 | <<locked>> | 84% | 38,130 psi | 61% | 2507 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 30,385 psi | 49% | 2270 fps | 96.3% |
| Somchem S341 | <<locked>> | 94% | 46,427 psi | 74% | 2648 fps | 95.7% |
| Vihtavuori N120 | <<locked>> | 80% | 43,990 psi | 71% | 2487 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 35,433 psi | 57% | 2369 fps | 99.6% |
| Vihtavuori N133 | <<locked>> | 80% | 30,893 psi | 50% | 2283 fps | 98.1% |
| Vihtavuori N135 | <<locked>> | 80% | 25,991 psi | 42% | 2234 fps | 96.8% |
| Vihtavuori N140 | <<locked>> | 82% | 29,109 psi | 47% | 2283 fps | 95.2% |
| Vihtavuori N150 | <<locked>> | 96% | 36,260 psi | 58% | 2461 fps | 95.2% |
| Vihtavuori N530 | <<locked>> | 86% | 38,145 psi | 61% | 2480 fps | 95.2% |
| Vihtavuori N540 | <<locked>> | 86% | 31,778 psi | 51% | 2365 fps | 95.7% |
| Winchester 748 | <<locked>> | 86% | 36,434 psi | 58% | 2507 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 92% | 40,915 psi | 66% | 2582 fps | 95.1% |
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 94 powders for .300 CR loaded with the .308 | 150gr | Swift A-Frame. Hodgdon CFE223 delivers the highest muzzle velocity at 2,887 fps; across all powders the maximum-charge window runs from 1,631 fps to 2,887 fps. Accurate 2495 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 53–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:16.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2206H 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, ADI AR 2219, Hodgdon H335 rank at the top here: for .300 CR with the .308 | 150gr | Swift A-Frame they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-17, Hodgdon H380, IMR 4166 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.