Load Specifications
Load data in caliber .300 CR with .308 | 150gr | Barnes X S bullet and 77 powders. The key underlying parameters are shown in the table above.
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% | 2602 fps | 100% |
| Accurate 2015 | <<locked>> | 96% | 53,534 psi | 86% | 2657 fps | 100% |
| Accurate 2200 | <<locked>> | 88% | 54,882 psi | 88% | 2726 fps | 96.1% |
| Accurate 2230 | <<locked>> | 88% | 55,434 psi | 89% | 2736 fps | 96.5% |
| Accurate 2460 | <<locked>> | 94% | 55,767 psi | 89% | 2720 fps | 99.6% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,240 psi | 79% | 2661 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 55,912 psi | 90% | 2762 fps | 99.5% |
| Accurate 4064ᴾ | <<locked>> | 100% | 45,716 psi | 73% | 2635 fps | 99.1% |
| Accurate LT-30 | <<locked>> | 90% | 55,390 psi | 89% | 2615 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 55,869 psi | 90% | 2628 fps | 99.4% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 55,114 psi | 88% | 2749 fps | 97.1% |
| ADI AR 2207 | <<locked>> | 88% | 55,840 psi | 90% | 2648 fps | 100% |
| ADI AR 2219 | <<locked>> | 90% | 53,969 psi | 87% | 2720 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 98% | 54,969 psi | 88% | 2720 fps | 98.2% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 55,869 psi | 90% | 2769 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 55,927 psi | 90% | 2822 fps | 98% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 45,005 psi | 72% | 2615 fps | 96.1% |
| Alliant Reloder-10x | <<locked>> | 92% | 53,722 psi | 86% | 2674 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 86% | 54,433 psi | 87% | 2621 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 90% | 53,650 psi | 86% | 2608 fps | 100% |
| Bofors RP3ᴾ | <<locked>> | 100% | 44,701 psi | 72% | 2621 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 96% | 54,839 psi | 88% | 2671 fps | 98.6% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 56,231 psi | 90% | 2795 fps | 98.9% |
| Hodgdon CFE223 | <<locked>> | 96% | 54,679 psi | 88% | 2815 fps | 96.3% |
| Hodgdon H322 | <<locked>> | 94% | 55,579 psi | 89% | 2743 fps | 100% |
| Hodgdon H335 | <<locked>> | 92% | 53,476 psi | 86% | 2720 fps | 99.6% |
| Hodgdon H4198 | <<locked>> | 86% | 54,201 psi | 87% | 2615 fps | 99.8% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 55,448 psi | 89% | 2762 fps | 97.7% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 50,386 psi | 81% | 2730 fps | 97.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,576 psi | 54% | 1598 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 53,853 psi | 86% | 2717 fps | 97.3% |
| IMR 3031ᴾ | <<locked>> | 100% | 52,939 psi | 85% | 2766 fps | 100% |
| IMR 4198 | <<locked>> | 92% | 54,157 psi | 87% | 2635 fps | 100% |
| IMR 4227 | <<locked>> | 82% | 54,099 psi | 87% | 2566 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 49,937 psi | 80% | 2707 fps | 96.2% |
| IMR 8208 XBR | <<locked>> | 98% | 54,969 psi | 88% | 2720 fps | 98.2% |
| Lovex D073.4 | <<locked>> | 88% | 56,217 psi | 90% | 2733 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 94% | 55,956 psi | 90% | 2723 fps | 99% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2740 fps | 99.3% |
| Lovex S053 | <<locked>> | 84% | 56,275 psi | 90% | 2552 fps | 100% |
| Lovex S060 | <<locked>> | 98% | 53,490 psi | 86% | 2644 fps | 96.7% |
| Lovex S062ᴾ | <<locked>> | 100% | 48,283 psi | 77% | 2631 fps | 97.2% |
| Norma 200 | <<locked>> | 88% | 54,621 psi | 88% | 2657 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 54,346 psi | 87% | 2707 fps | 98.2% |
| Norma 202ᴾ | <<locked>> | 100% | 54,085 psi | 87% | 2726 fps | 99.7% |
| Norma 203Bᴾ | <<locked>> | 100% | 48,037 psi | 77% | 2664 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 98% | 54,360 psi | 87% | 2746 fps | 96.8% |
| Ramshot X-Terminator | <<locked>> | 94% | 54,085 psi | 87% | 2677 fps | 96.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,852 psi | 54% | 1637 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 82% | 54,302 psi | 87% | 2602 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 55,245 psi | 89% | 2720 fps | 99.2% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 43,163 psi | 69% | 2635 fps | 96.7% |
| Rottweil R 901 | <<locked>> | 98% | 56,173 psi | 90% | 2713 fps | 99.7% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 51,619 psi | 83% | 2657 fps | 97.7% |
| Shooters World AR Plus | <<locked>> | 88% | 56,217 psi | 90% | 2733 fps | 99.4% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2740 fps | 99.3% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 48,283 psi | 77% | 2631 fps | 97.2% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 56,217 psi | 90% | 2690 fps | 98% |
| SNPE Vectan BA6 1/2 | <<locked>> | 86% | 54,056 psi | 87% | 2375 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 90% | 54,839 psi | 88% | 2733 fps | 99.7% |
| SNPE Vectan SP 3 | <<locked>> | 92% | 54,302 psi | 87% | 2684 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 53,548 psi | 86% | 2723 fps | 96.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 98% | 54,056 psi | 87% | 2628 fps | 99.5% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 46,485 psi | 75% | 2533 fps | 99.4% |
| Somchem S321 | <<locked>> | 94% | 53,026 psi | 85% | 2713 fps | 98.2% |
| Somchem S335ᴾ | <<locked>> | 100% | 55,680 psi | 89% | 2671 fps | 99.9% |
| Somchem S341ᴾ | <<locked>> | 100% | 55,898 psi | 90% | 2736 fps | 96.9% |
| Vihtavuori N120 | <<locked>> | 88% | 55,724 psi | 89% | 2595 fps | 100% |
| Vihtavuori N130 | <<locked>> | 94% | 54,143 psi | 87% | 2625 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 56,347 psi | 90% | 2667 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 48,747 psi | 78% | 2648 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 51,111 psi | 82% | 2657 fps | 99.6% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 41,481 psi | 67% | 2510 fps | 96% |
| Vihtavuori N530 | <<locked>> | 98% | 55,579 psi | 89% | 2720 fps | 98.3% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 49,298 psi | 79% | 2648 fps | 99.1% |
| Winchester 748 | <<locked>> | 98% | 53,592 psi | 86% | 2759 fps | 98.8% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 52,823 psi | 85% | 2730 fps | 97.2% |
Start Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 80% | 48,254 psi | 77% | 2507 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 33,765 psi | 54% | 2316 fps | 98.5% |
| Accurate 2200 | <<locked>> | 86% | 51,285 psi | 82% | 2671 fps | 95.3% |
| Accurate 2230 | <<locked>> | 84% | 48,428 psi | 78% | 2628 fps | 95.1% |
| Accurate 2460 | <<locked>> | 80% | 36,129 psi | 58% | 2388 fps | 96.4% |
| Accurate 2495 | <<locked>> | 80% | 27,151 psi | 44% | 2221 fps | 96.9% |
| Accurate 2520 | <<locked>> | 82% | 33,562 psi | 54% | 2372 fps | 95.1% |
| Accurate 4064 | <<locked>> | 86% | 30,516 psi | 49% | 2323 fps | 95.4% |
| Accurate LT-30 | <<locked>> | 80% | 41,437 psi | 66% | 2395 fps | 98.9% |
| Accurate LT-32 | <<locked>> | 80% | 41,800 psi | 67% | 2402 fps | 97.4% |
| ADI AR 2206H | <<locked>> | 94% | 46,412 psi | 74% | 2608 fps | 95.2% |
| ADI AR 2207 | <<locked>> | 80% | 44,614 psi | 72% | 2490 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,436 psi | 63% | 2480 fps | 98.5% |
| ADI Benchmark 8208 | <<locked>> | 88% | 41,002 psi | 66% | 2484 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 30,835 psi | 49% | 2333 fps | 99.7% |
| Alliant Power Pro 1200-R | <<locked>> | 86% | 43,685 psi | 70% | 2615 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 42,148 psi | 68% | 2562 fps | 95.3% |
| Alliant Reloder-10x | <<locked>> | 80% | 38,247 psi | 61% | 2421 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 46,006 psi | 74% | 2500 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 39,740 psi | 64% | 2388 fps | 98.8% |
| Bofors RP3 | <<locked>> | 98% | 41,713 psi | 67% | 2569 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 38,986 psi | 63% | 2398 fps | 95.4% |
| Hodgdon BL-C2 | <<locked>> | 88% | 38,508 psi | 62% | 2497 fps | 95.4% |
| Hodgdon CFE223 | <<locked>> | 94% | 51,227 psi | 82% | 2762 fps | 95.6% |
| Hodgdon H322 | <<locked>> | 80% | 36,361 psi | 58% | 2415 fps | 97.8% |
| Hodgdon H335 | <<locked>> | 80% | 36,724 psi | 59% | 2428 fps | 96.9% |
| Hodgdon H4198 | <<locked>> | 80% | 45,484 psi | 73% | 2480 fps | 99.1% |
| Hodgdon H4895 | <<locked>> | 92% | 43,729 psi | 70% | 2572 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 41,901 psi | 67% | 2575 fps | 95% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,237 psi | 40% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 94% | 44,962 psi | 72% | 2572 fps | 95.4% |
| IMR 3031 | <<locked>> | 80% | 29,472 psi | 47% | 2303 fps | 96.3% |
| IMR 4198 | <<locked>> | 80% | 38,870 psi | 62% | 2395 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 50,981 psi | 82% | 2523 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 47,152 psi | 76% | 2661 fps | 95.6% |
| IMR 8208 XBR | <<locked>> | 88% | 41,002 psi | 66% | 2484 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 43,279 psi | 69% | 2530 fps | 97.6% |
| Lovex D073.5 | <<locked>> | 82% | 38,101 psi | 61% | 2428 fps | 95.6% |
| Lovex D073.6 | <<locked>> | 86% | 34,316 psi | 55% | 2405 fps | 95.4% |
| Lovex S053 | <<locked>> | 80% | 50,328 psi | 81% | 2477 fps | 100% |
| Lovex S060 | <<locked>> | 94% | 47,805 psi | 77% | 2552 fps | 95.5% |
| Lovex S062 | <<locked>> | 94% | 40,698 psi | 65% | 2497 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 43,352 psi | 70% | 2490 fps | 100% |
| Norma 201 | <<locked>> | 90% | 40,727 psi | 65% | 2477 fps | 95.3% |
| Norma 202 | <<locked>> | 82% | 31,763 psi | 51% | 2313 fps | 95.2% |
| Norma 203B | <<locked>> | 98% | 45,310 psi | 73% | 2618 fps | 95% |
| Ramshot Wild Boar | <<locked>> | 94% | 47,805 psi | 77% | 2641 fps | 95.4% |
| Ramshot X-Terminator | <<locked>> | 90% | 47,718 psi | 77% | 2579 fps | 95.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 25,295 psi | 41% | 1463 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 51,285 psi | 82% | 2559 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,332 psi | 58% | 2388 fps | 95.5% |
| ReloadSwiss RS 60 | <<locked>> | 98% | 40,828 psi | 65% | 2585 fps | 95.9% |
| Rottweil R 901 | <<locked>> | 80% | 34,505 psi | 55% | 2326 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 92% | 41,046 psi | 66% | 2477 fps | 95.3% |
| Shooters World AR Plus | <<locked>> | 80% | 43,279 psi | 69% | 2530 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 86% | 34,316 psi | 55% | 2405 fps | 95.4% |
| Shooters World Precision | <<locked>> | 94% | 40,698 psi | 65% | 2497 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 43,453 psi | 70% | 2490 fps | 95.4% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,282 psi | 74% | 2274 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,132 psi | 64% | 2487 fps | 97.6% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,101 psi | 61% | 2415 fps | 98.9% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 47,427 psi | 76% | 2625 fps | 95.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 32,169 psi | 52% | 2234 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 29,530 psi | 47% | 2195 fps | 95.4% |
| Somchem S321 | <<locked>> | 84% | 38,769 psi | 62% | 2464 fps | 95% |
| Somchem S335 | <<locked>> | 80% | 31,763 psi | 51% | 2247 fps | 96.2% |
| Somchem S341 | <<locked>> | 96% | 49,385 psi | 79% | 2638 fps | 95.6% |
| Vihtavuori N120 | <<locked>> | 80% | 44,570 psi | 71% | 2444 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,303 psi | 58% | 2333 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 80% | 31,734 psi | 51% | 2247 fps | 97.9% |
| Vihtavuori N135 | <<locked>> | 80% | 27,267 psi | 44% | 2211 fps | 96.7% |
| Vihtavuori N140 | <<locked>> | 84% | 31,952 psi | 51% | 2300 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 98% | 39,088 psi | 63% | 2464 fps | 95.3% |
| Vihtavuori N530 | <<locked>> | 88% | 41,046 psi | 66% | 2484 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 86% | 32,503 psi | 52% | 2326 fps | 95.2% |
| Winchester 748 | <<locked>> | 86% | 36,927 psi | 59% | 2457 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 94% | 43,830 psi | 70% | 2579 fps | 95.2% |
ᴾ possible press load - work up slowly to this load while watching for signs of excessive pressure.
This overview compares 77 powders for .300 CR loaded with the .308 | 150gr | Barnes X S. Alliant Power Pro 1200-R delivers the highest muzzle velocity at 2,822 fps; across all powders the maximum-charge window runs from 1,598 fps to 2,822 fps. Accurate 2495 gives the best case fill at 100 %, and 77 of the 77 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (430 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 150.0 gr projectile in 0.308" calls for a 1:13.0 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. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.