Load Specifications
Load data in caliber .300 CR with .307 | 165gr | Rhino Penetrator bullet and 79 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon CFE223, Alliant Power Pro 1200-R 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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You can find more information in our FAQ: How can I use the Personalized Load Calculator?
Max Load - Barrel Length: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 1680 | <<locked>> | 86% | 56,159 psi | 90% | 2480 fps | 100% |
| Accurate 2015 | <<locked>> | 98% | 53,940 psi | 86% | 2533 fps | 100% |
| Accurate 2200 | <<locked>> | 90% | 56,362 psi | 90% | 2615 fps | 97.1% |
| Accurate 2230 | <<locked>> | 88% | 52,953 psi | 85% | 2572 fps | 96.9% |
| Accurate 2460 | <<locked>> | 96% | 56,275 psi | 90% | 2595 fps | 99.9% |
| Accurate 2495ᴾ | <<locked>> | 100% | 45,455 psi | 73% | 2487 fps | 100% |
| Accurate 2520 | <<locked>> | 98% | 53,171 psi | 85% | 2595 fps | 99.6% |
| Accurate 4064ᴾ | <<locked>> | 100% | 42,206 psi | 68% | 2461 fps | 99.2% |
| Accurate LT-30 | <<locked>> | 90% | 53,374 psi | 86% | 2454 fps | 100% |
| Accurate LT-32 | <<locked>> | 90% | 53,838 psi | 86% | 2470 fps | 99.6% |
| ADI AR 2206Hᴾ | <<locked>> | 100% | 52,866 psi | 85% | 2585 fps | 97.4% |
| ADI AR 2207 | <<locked>> | 88% | 53,650 psi | 86% | 2484 fps | 100% |
| ADI AR 2219 | <<locked>> | 92% | 55,738 psi | 89% | 2608 fps | 100% |
| ADI Benchmark 8208ᴾ | <<locked>> | 100% | 56,173 psi | 90% | 2602 fps | 98.9% |
| Alliant AR-Compᴾ | <<locked>> | 100% | 53,330 psi | 86% | 2598 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 94% | 53,534 psi | 86% | 2651 fps | 98.2% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 42,496 psi | 68% | 2454 fps | 96.3% |
| Alliant Reloder-10x | <<locked>> | 94% | 54,375 psi | 87% | 2549 fps | 100% |
| Alliant Reloder-7 | <<locked>> | 88% | 55,158 psi | 88% | 2497 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 92% | 55,303 psi | 89% | 2500 fps | 100% |
| Baschieri & Pellagri 107ᴾ | <<locked>> | 100% | 52,518 psi | 84% | 2592 fps | 96% |
| Bofors RP3ᴾ | <<locked>> | 100% | 41,640 psi | 67% | 2454 fps | 96.2% |
| Hodgdon Benchmark | <<locked>> | 98% | 55,767 psi | 89% | 2552 fps | 99.2% |
| Hodgdon BL-C2ᴾ | <<locked>> | 100% | 53,737 psi | 86% | 2628 fps | 99.1% |
| Hodgdon CFE223 | <<locked>> | 98% | 56,101 psi | 90% | 2703 fps | 97.4% |
| Hodgdon H322 | <<locked>> | 94% | 53,461 psi | 86% | 2579 fps | 100% |
| Hodgdon H335 | <<locked>> | 94% | 55,027 psi | 88% | 2605 fps | 99.9% |
| Hodgdon H4198 | <<locked>> | 88% | 55,666 psi | 89% | 2500 fps | 100% |
| Hodgdon H4895ᴾ | <<locked>> | 100% | 53,127 psi | 85% | 2598 fps | 98% |
| Hodgdon LEVERevolutionᴾ | <<locked>> | 100% | 47,892 psi | 77% | 2566 fps | 97.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 32,822 psi | 53% | 1493 fps | 100% |
| Hodgdon VARGETᴾ | <<locked>> | 100% | 51,924 psi | 83% | 2559 fps | 97.6% |
| IMR 3031ᴾ | <<locked>> | 100% | 50,749 psi | 81% | 2598 fps | 100% |
| IMR 4198 | <<locked>> | 94% | 55,593 psi | 89% | 2516 fps | 100% |
| IMR 4227 | <<locked>> | 84% | 55,927 psi | 90% | 2448 fps | 100% |
| IMR 4895ᴾ | <<locked>> | 100% | 47,601 psi | 76% | 2546 fps | 96.5% |
| IMR 8208 XBRᴾ | <<locked>> | 100% | 56,173 psi | 90% | 2602 fps | 98.9% |
| Lovex D073.4 | <<locked>> | 88% | 53,417 psi | 86% | 2566 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 94% | 52,605 psi | 84% | 2552 fps | 99.1% |
| Lovex D073.6ᴾ | <<locked>> | 100% | 50,459 psi | 81% | 2572 fps | 99.4% |
| Lovex S053 | <<locked>> | 84% | 54,462 psi | 87% | 2398 fps | 100% |
| Lovex S060ᴾ | <<locked>> | 100% | 54,404 psi | 87% | 2530 fps | 97.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 45,556 psi | 73% | 2467 fps | 97.4% |
| Norma 200 | <<locked>> | 90% | 54,853 psi | 88% | 2533 fps | 100% |
| Norma 201ᴾ | <<locked>> | 100% | 51,764 psi | 83% | 2546 fps | 98.4% |
| Norma 202ᴾ | <<locked>> | 100% | 51,576 psi | 83% | 2562 fps | 99.8% |
| Norma 203Bᴾ | <<locked>> | 100% | 45,629 psi | 73% | 2503 fps | 96% |
| Ramshot Wild Boarᴾ | <<locked>> | 100% | 55,840 psi | 90% | 2631 fps | 97.8% |
| Ramshot X-Terminator | <<locked>> | 96% | 55,390 psi | 89% | 2566 fps | 97.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 32,967 psi | 53% | 1532 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 84% | 55,651 psi | 89% | 2480 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 94% | 53,171 psi | 85% | 2559 fps | 99.4% |
| ReloadSwiss RS 52ᴾ | <<locked>> | 100% | 49,023 psi | 79% | 2612 fps | 96% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 41,002 psi | 66% | 2480 fps | 97.1% |
| Rottweil R 901ᴾ | <<locked>> | 100% | 56,028 psi | 90% | 2585 fps | 99.9% |
| Rottweil R 902ᴾ | <<locked>> | 100% | 48,559 psi | 78% | 2490 fps | 97.8% |
| Shooters World AR Plus | <<locked>> | 88% | 53,417 psi | 86% | 2566 fps | 99.5% |
| Shooters World Match Rifleᴾ | <<locked>> | 100% | 50,459 psi | 81% | 2572 fps | 99.4% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 45,556 psi | 73% | 2467 fps | 97.4% |
| Shooters World Tactical Rifle | <<locked>> | 92% | 53,896 psi | 86% | 2530 fps | 98.2% |
| SNPE Vectan BA6 1/2 | <<locked>> | 88% | 54,650 psi | 88% | 2254 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 92% | 55,854 psi | 90% | 2608 fps | 99.9% |
| SNPE Vectan SP 3 | <<locked>> | 94% | 55,608 psi | 89% | 2562 fps | 100% |
| SNPE Vectan SP 9ᴾ | <<locked>> | 100% | 51,416 psi | 82% | 2562 fps | 97% |
| SNPE Vectan Tubal 3000ᴾ | <<locked>> | 100% | 55,114 psi | 88% | 2513 fps | 99.8% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 44,324 psi | 71% | 2379 fps | 99.6% |
| Somchem S321 | <<locked>> | 96% | 54,128 psi | 87% | 2598 fps | 98.9% |
| Somchem S335ᴾ | <<locked>> | 100% | 53,359 psi | 86% | 2513 fps | 100% |
| Somchem S341ᴾ | <<locked>> | 100% | 53,751 psi | 86% | 2579 fps | 97.3% |
| Vihtavuori N120 | <<locked>> | 88% | 53,664 psi | 86% | 2438 fps | 100% |
| Vihtavuori N130 | <<locked>> | 96% | 54,766 psi | 88% | 2500 fps | 100% |
| Vihtavuori N133ᴾ | <<locked>> | 100% | 54,201 psi | 87% | 2507 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 46,282 psi | 74% | 2484 fps | 100% |
| Vihtavuori N140ᴾ | <<locked>> | 100% | 48,776 psi | 78% | 2497 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 38,986 psi | 63% | 2352 fps | 96.2% |
| Vihtavuori N530 | <<locked>> | 98% | 53,403 psi | 86% | 2559 fps | 98.6% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 46,905 psi | 75% | 2487 fps | 99.3% |
| Winchester 748ᴾ | <<locked>> | 100% | 54,839 psi | 88% | 2644 fps | 99.4% |
| Winchester StaBALL Matchᴾ | <<locked>> | 100% | 50,444 psi | 81% | 2566 fps | 97.5% |
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% | 46,296 psi | 74% | 2356 fps | 100% |
| Accurate 2015 | <<locked>> | 80% | 30,835 psi | 49% | 2156 fps | 98.4% |
| Accurate 2200 | <<locked>> | 86% | 49,385 psi | 79% | 2513 fps | 95.7% |
| Accurate 2230 | <<locked>> | 84% | 45,832 psi | 73% | 2464 fps | 95.3% |
| Accurate 2460 | <<locked>> | 80% | 32,938 psi | 53% | 2221 fps | 96.3% |
| Accurate 2495 | <<locked>> | 80% | 23,424 psi | 38% | 2041 fps | 96.2% |
| Accurate 2520 | <<locked>> | 82% | 30,705 psi | 49% | 2211 fps | 95% |
| Accurate 4064 | <<locked>> | 88% | 28,660 psi | 46% | 2188 fps | 95.7% |
| Accurate LT-30 | <<locked>> | 80% | 39,581 psi | 63% | 2247 fps | 99.1% |
| Accurate LT-32 | <<locked>> | 80% | 39,958 psi | 64% | 2254 fps | 97.6% |
| ADI AR 2206H | <<locked>> | 94% | 43,961 psi | 70% | 2448 fps | 95.5% |
| ADI AR 2207 | <<locked>> | 80% | 42,032 psi | 67% | 2326 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 37,304 psi | 60% | 2323 fps | 98.6% |
| ADI Benchmark 8208 | <<locked>> | 88% | 38,914 psi | 62% | 2333 fps | 95.5% |
| Alliant AR-Comp | <<locked>> | 80% | 28,384 psi | 46% | 2175 fps | 99.6% |
| Alliant Power Pro 1200-R | 33.3 gr | 86% | 41,307 psi | 66% | 2454 fps | 95.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 98% | 39,842 psi | 64% | 2405 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 35,520 psi | 57% | 2260 fps | 99.8% |
| Alliant Reloder-7 | <<locked>> | 80% | 43,584 psi | 70% | 2339 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 37,811 psi | 61% | 2241 fps | 99% |
| Baschieri & Pellagri 107 | <<locked>> | 98% | 49,313 psi | 79% | 2543 fps | 95.3% |
| Bofors RP3 | <<locked>> | 98% | 38,856 psi | 62% | 2405 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 36,825 psi | 59% | 2247 fps | 95.6% |
| Hodgdon BL-C2 | <<locked>> | 88% | 35,897 psi | 58% | 2336 fps | 95.4% |
| Hodgdon CFE223 | 38.8 gr | 92% | 45,934 psi | 74% | 2546 fps | 95.1% |
| Hodgdon H322 | <<locked>> | 80% | 34,040 psi | 55% | 2257 fps | 97.9% |
| Hodgdon H335 | 33.1 gr | 80% | 34,418 psi | 55% | 2270 fps | 97% |
| Hodgdon H4198 | <<locked>> | 80% | 43,613 psi | 70% | 2329 fps | 99.3% |
| Hodgdon H4895 | <<locked>> | 92% | 41,423 psi | 66% | 2411 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 94% | 39,639 psi | 64% | 2418 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,236 psi | 39% | 1332 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 40,538 psi | 65% | 2375 fps | 95% |
| IMR 3031 | <<locked>> | 80% | 27,006 psi | 43% | 2142 fps | 96.2% |
| IMR 4198 | <<locked>> | 80% | 37,231 psi | 60% | 2247 fps | 100% |
| IMR 4227 | <<locked>> | 80% | 49,269 psi | 79% | 2365 fps | 100% |
| IMR 4895 | <<locked>> | 96% | 42,119 psi | 68% | 2454 fps | 95.2% |
| IMR 8208 XBR | <<locked>> | 88% | 38,914 psi | 62% | 2333 fps | 95.5% |
| Lovex D073.4 | <<locked>> | 80% | 40,437 psi | 65% | 2365 fps | 97.7% |
| Lovex D073.5 | <<locked>> | 82% | 34,882 psi | 56% | 2260 fps | 95.5% |
| Lovex D073.6 | <<locked>> | 86% | 31,314 psi | 50% | 2238 fps | 95.2% |
| Lovex S053 | <<locked>> | 80% | 48,588 psi | 78% | 2326 fps | 100% |
| Lovex S060 | <<locked>> | 92% | 42,989 psi | 69% | 2356 fps | 95.1% |
| Lovex S062 | <<locked>> | 94% | 38,101 psi | 61% | 2339 fps | 95.5% |
| Norma 200 | <<locked>> | 80% | 40,190 psi | 64% | 2323 fps | 100% |
| Norma 201 | <<locked>> | 90% | 37,985 psi | 61% | 2320 fps | 95.4% |
| Norma 202 | <<locked>> | 82% | 29,225 psi | 47% | 2156 fps | 95.2% |
| Norma 203B | <<locked>> | 98% | 42,728 psi | 69% | 2454 fps | 95.2% |
| Ramshot Wild Boar | <<locked>> | 92% | 42,554 psi | 68% | 2431 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 90% | 45,643 psi | 73% | 2425 fps | 95.6% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,221 psi | 39% | 1365 fps | 100% |
| ReloadSwiss RS 36 | <<locked>> | 80% | 49,298 psi | 79% | 2402 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 34,040 psi | 55% | 2234 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 45,919 psi | 74% | 2559 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 36,129 psi | 58% | 2372 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 31,067 psi | 50% | 2156 fps | 95.5% |
| Rottweil R 902 | <<locked>> | 92% | 38,043 psi | 61% | 2313 fps | 95.4% |
| Shooters World AR Plus | <<locked>> | 80% | 40,437 psi | 65% | 2365 fps | 97.7% |
| Shooters World Match Rifle | <<locked>> | 86% | 31,314 psi | 50% | 2238 fps | 95.2% |
| Shooters World Precision | <<locked>> | 94% | 38,101 psi | 61% | 2339 fps | 95.5% |
| Shooters World Tactical Rifle | <<locked>> | 84% | 41,104 psi | 66% | 2336 fps | 95.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 44,541 psi | 71% | 2133 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 37,739 psi | 61% | 2326 fps | 97.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 36,114 psi | 58% | 2264 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 42,496 psi | 68% | 2421 fps | 95% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 29,921 psi | 48% | 2087 fps | 95.2% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 27,195 psi | 44% | 2044 fps | 95.3% |
| Somchem S321 | <<locked>> | 84% | 36,216 psi | 58% | 2306 fps | 95.1% |
| Somchem S335 | <<locked>> | 80% | 29,167 psi | 47% | 2093 fps | 96.1% |
| Somchem S341 | <<locked>> | 94% | 43,874 psi | 70% | 2431 fps | 95.1% |
| Vihtavuori N120 | <<locked>> | 80% | 42,134 psi | 68% | 2287 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 34,084 psi | 55% | 2182 fps | 99.5% |
| Vihtavuori N133 | <<locked>> | 80% | 29,660 psi | 48% | 2103 fps | 98% |
| Vihtavuori N135 | <<locked>> | 80% | 24,787 psi | 40% | 2057 fps | 96.5% |
| Vihtavuori N140 | <<locked>> | 84% | 29,704 psi | 48% | 2146 fps | 95.7% |
| Vihtavuori N150 | <<locked>> | 98% | 36,535 psi | 59% | 2306 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 88% | 38,595 psi | 62% | 2323 fps | 95.5% |
| Vihtavuori N540 | <<locked>> | 86% | 30,182 psi | 48% | 2175 fps | 95.3% |
| Winchester 748 | <<locked>> | 86% | 34,664 psi | 56% | 2303 fps | 95.2% |
| Winchester StaBALL Match | <<locked>> | 94% | 41,524 psi | 67% | 2425 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 79 powders for .300 CR loaded with the .307 | 165gr | Rhino Penetrator. Hodgdon CFE223 delivers the highest muzzle velocity at 2,703 fps; across all powders the maximum-charge window runs from 1,493 fps to 2,703 fps. Accurate 2495 gives the best case fill at 100 %, and 79 of the 79 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 165.0 gr projectile in 0.307" calls for a 1:11.5 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. Hodgdon CFE223, Alliant Power Pro 1200-R, Hodgdon H335 rank at the top here: for .300 CR with the .307 | 165gr | Rhino Penetrator 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.