Load Specifications
Load data in caliber 7.62 x 53 R Fin. with .308 | 170gr | Impala RNFP KO bullet and 84 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 50,256 psi | 89% | 2615 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 48,573 psi | 86% | 2641 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,443 psi | 87% | 2687 fps | 100% |
| Accurate 4064 | <<locked>> | 90% | 48,283 psi | 85% | 2677 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 48,965 psi | 87% | 2769 fps | 98.4% |
| ADI AR 2206H | <<locked>> | 86% | 48,776 psi | 86% | 2694 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 92% | 49,400 psi | 87% | 2687 fps | 98.8% |
| ADI Benchmark 8208 | <<locked>> | 86% | 50,981 psi | 90% | 2697 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 50,821 psi | 90% | 2684 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 50,488 psi | 89% | 2838 fps | 99% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 48,950 psi | 87% | 2713 fps | 99.7% |
| Alliant Reloder-15 | <<locked>> | 90% | 49,821 psi | 88% | 2730 fps | 99% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,196 psi | 85% | 2769 fps | 98.5% |
| Alliant Reloder-17 | <<locked>> | 96% | 48,762 psi | 86% | 2812 fps | 99.6% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,925 psi | 62% | 2523 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 50,908 psi | 90% | 2749 fps | 98.8% |
| Bofors RP3 | <<locked>> | 92% | 49,269 psi | 87% | 2726 fps | 99.7% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,024 psi | 88% | 2635 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,792 psi | 88% | 2726 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 50,865 psi | 90% | 2808 fps | 99.2% |
| Hodgdon H380 | <<locked>> | 92% | 50,328 psi | 89% | 2730 fps | 98.1% |
| Hodgdon H4895 | <<locked>> | 86% | 49,226 psi | 87% | 2703 fps | 99.5% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,382 psi | 78% | 2657 fps | 98.9% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 50,328 psi | 89% | 2776 fps | 99.8% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,259 psi | 62% | 1657 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,111 psi | 89% | 2703 fps | 99.6% |
| IMR 3031 | <<locked>> | 86% | 48,327 psi | 85% | 2694 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,052 psi | 87% | 2671 fps | 98.9% |
| IMR 4831ᴾ | <<locked>> | 100% | 46,688 psi | 83% | 2713 fps | 98.1% |
| IMR 4895 | <<locked>> | 90% | 50,908 psi | 90% | 2762 fps | 99.5% |
| IMR 8208 XBR | <<locked>> | 86% | 50,981 psi | 90% | 2697 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 88% | 51,053 psi | 90% | 2723 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 48,965 psi | 87% | 2625 fps | 99.2% |
| Lovex S062 | <<locked>> | 90% | 49,052 psi | 87% | 2677 fps | 99.8% |
| Lovex S065 | <<locked>> | 98% | 50,981 psi | 90% | 2710 fps | 97.4% |
| Lovex S070 | <<locked>> | 98% | 48,414 psi | 86% | 2687 fps | 95.7% |
| Norma 201 | <<locked>> | 88% | 51,024 psi | 90% | 2694 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 51,024 psi | 90% | 2697 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,008 psi | 87% | 2720 fps | 99.3% |
| Norma URPᴾ | <<locked>> | 100% | 48,283 psi | 85% | 2756 fps | 98.2% |
| Ramshot Big Game | <<locked>> | 90% | 48,573 psi | 86% | 2736 fps | 99.1% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 47,747 psi | 84% | 2746 fps | 96.3% |
| Ramshot TAC | <<locked>> | 84% | 47,993 psi | 85% | 2651 fps | 97% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,285 psi | 89% | 2726 fps | 99.3% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,965 psi | 87% | 2648 fps | 99.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,882 psi | 63% | 1699 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,705 psi | 90% | 2684 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 50,836 psi | 90% | 2707 fps | 96.7% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 48,834 psi | 86% | 2785 fps | 98.9% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 48,675 psi | 86% | 2818 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 48,443 psi | 86% | 2789 fps | 98.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,052 psi | 87% | 2799 fps | 97.5% |
| Rottweil R 901 | <<locked>> | 84% | 50,024 psi | 88% | 2641 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 48,733 psi | 86% | 2648 fps | 99.8% |
| Rottweil R 903 | <<locked>> | 94% | 49,168 psi | 87% | 2717 fps | 99.6% |
| Shooters World Long Rifle | <<locked>> | 98% | 50,981 psi | 90% | 2710 fps | 97.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 51,053 psi | 90% | 2723 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,052 psi | 87% | 2677 fps | 99.8% |
| Shooters World SW4350 | <<locked>> | 98% | 48,414 psi | 86% | 2687 fps | 95.7% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,082 psi | 89% | 2769 fps | 99.3% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,487 psi | 87% | 2680 fps | 97.8% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 49,951 psi | 88% | 2710 fps | 99.3% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,676 psi | 88% | 2595 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 48,965 psi | 87% | 2592 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 50,952 psi | 90% | 2661 fps | 96% |
| Somchem S321 | <<locked>> | 82% | 48,631 psi | 86% | 2680 fps | 99.8% |
| Somchem S335 | <<locked>> | 86% | 49,037 psi | 87% | 2598 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 48,878 psi | 86% | 2677 fps | 99.1% |
| Somchem S355 | <<locked>> | 94% | 49,879 psi | 88% | 2717 fps | 99.6% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,482 psi | 77% | 2713 fps | 99.7% |
| Vihtavuori N130 | <<locked>> | 82% | 49,792 psi | 88% | 2569 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,559 psi | 88% | 2585 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 50,299 psi | 89% | 2661 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,240 psi | 85% | 2631 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 50,676 psi | 90% | 2694 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 50,865 psi | 90% | 2753 fps | 98.5% |
| Vihtavuori N530 | <<locked>> | 84% | 48,167 psi | 85% | 2644 fps | 99.7% |
| Vihtavuori N540 | <<locked>> | 90% | 49,748 psi | 88% | 2677 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,024 psi | 88% | 2762 fps | 98.3% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 37,028 psi | 65% | 2595 fps | 96.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 48,689 psi | 86% | 2690 fps | 99.5% |
| Winchester 748 | <<locked>> | 86% | 50,473 psi | 89% | 2740 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 48,892 psi | 86% | 2759 fps | 95.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,516 psi | 88% | 2720 fps | 99.6% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 27"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 44,628 psi | 79% | 2530 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 38,363 psi | 68% | 2470 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,439 psi | 77% | 2589 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 36,201 psi | 64% | 2461 fps | 99.8% |
| Accurate 4350 | <<locked>> | 90% | 35,607 psi | 63% | 2516 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 40,843 psi | 72% | 2546 fps | 97.9% |
| ADI AR 2208 | <<locked>> | 80% | 34,954 psi | 62% | 2402 fps | 95.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,627 psi | 75% | 2552 fps | 99.1% |
| Alliant AR-Comp | <<locked>> | 80% | 42,061 psi | 74% | 2552 fps | 100% |
| Alliant Power Pro 2000-MR | 43.8 gr | 80% | 36,796 psi | 65% | 2556 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 34,287 psi | 61% | 2428 fps | 97.2% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,883 psi | 65% | 2484 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 36,114 psi | 64% | 2516 fps | 95% |
| Alliant Reloder-17 | 44.2 gr | 82% | 31,778 psi | 56% | 2438 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 98% | 33,083 psi | 58% | 2474 fps | 95.6% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,407 psi | 70% | 2539 fps | 96.4% |
| Bofors RP3 | <<locked>> | 80% | 34,171 psi | 60% | 2438 fps | 97.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,657 psi | 79% | 2546 fps | 99.6% |
| Hodgdon BL-C2 | <<locked>> | 80% | 41,147 psi | 73% | 2579 fps | 99.3% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,483 psi | 79% | 2697 fps | 98.3% |
| Hodgdon H380 | <<locked>> | 84% | 39,436 psi | 70% | 2530 fps | 95.7% |
| Hodgdon H4895 | <<locked>> | 80% | 41,133 psi | 73% | 2556 fps | 98.4% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 31,560 psi | 56% | 2379 fps | 95.3% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,825 psi | 65% | 2523 fps | 97.9% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,542 psi | 47% | 1483 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,465 psi | 70% | 2510 fps | 98% |
| IMR 3031 | <<locked>> | 80% | 40,089 psi | 71% | 2559 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,608 psi | 65% | 2434 fps | 96.3% |
| IMR 4831 | <<locked>> | 92% | 36,695 psi | 65% | 2520 fps | 95.6% |
| IMR 4895 | <<locked>> | 80% | 37,652 psi | 67% | 2513 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 42,627 psi | 75% | 2552 fps | 99.1% |
| Lovex D073.6 | <<locked>> | 80% | 39,813 psi | 70% | 2536 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 41,292 psi | 73% | 2487 fps | 98% |
| Lovex S062 | <<locked>> | 80% | 36,796 psi | 65% | 2448 fps | 98.2% |
| Lovex S065 | <<locked>> | 92% | 42,989 psi | 76% | 2569 fps | 95.6% |
| Lovex S070 | <<locked>> | 96% | 45,658 psi | 81% | 2641 fps | 95% |
| Norma 201 | <<locked>> | 80% | 40,553 psi | 72% | 2510 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 40,161 psi | 71% | 2516 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 36,289 psi | 64% | 2474 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 36,158 psi | 64% | 2516 fps | 95.1% |
| Ramshot Big Game | <<locked>> | 80% | 35,520 psi | 63% | 2477 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 98% | 44,889 psi | 79% | 2694 fps | 95.6% |
| Ramshot TAC | <<locked>> | 80% | 42,496 psi | 75% | 2549 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,582 psi | 74% | 2572 fps | 98% |
| Ramshot X-Terminator | <<locked>> | 80% | 46,050 psi | 81% | 2598 fps | 98.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,701 psi | 47% | 1516 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,558 psi | 84% | 2631 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 44,860 psi | 79% | 2605 fps | 95.3% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,927 psi | 67% | 2575 fps | 96.7% |
| ReloadSwiss RS 60 | 43.1 gr | 80% | 31,647 psi | 56% | 2448 fps | 97.9% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 37,536 psi | 66% | 2575 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 40,814 psi | 72% | 2635 fps | 95.1% |
| Rottweil R 901 | <<locked>> | 80% | 44,860 psi | 79% | 2559 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 38,682 psi | 68% | 2464 fps | 98.5% |
| Rottweil R 903 | <<locked>> | 80% | 32,271 psi | 57% | 2385 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 42,989 psi | 76% | 2569 fps | 95.6% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,813 psi | 70% | 2536 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 36,796 psi | 65% | 2448 fps | 98.2% |
| Shooters World SW4350 | <<locked>> | 96% | 45,658 psi | 81% | 2641 fps | 95% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,938 psi | 58% | 2421 fps | 95.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,915 psi | 72% | 2526 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 39,378 psi | 70% | 2516 fps | 97.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,785 psi | 74% | 2464 fps | 99.9% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,650 psi | 61% | 2343 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,616 psi | 84% | 2608 fps | 95.2% |
| Somchem S321 | <<locked>> | 80% | 45,759 psi | 81% | 2631 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 41,394 psi | 73% | 2470 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,219 psi | 71% | 2523 fps | 97.6% |
| Somchem S355 | <<locked>> | 80% | 33,098 psi | 59% | 2388 fps | 96.3% |
| Somchem S365 | <<locked>> | 86% | 29,080 psi | 51% | 2372 fps | 95.9% |
| Vihtavuori N130 | <<locked>> | 80% | 46,992 psi | 83% | 2526 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,742 psi | 74% | 2461 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 37,536 psi | 66% | 2454 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 38,159 psi | 67% | 2457 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 31,415 psi | 56% | 2329 fps | 97.2% |
| Vihtavuori N160 | <<locked>> | 90% | 37,739 psi | 67% | 2513 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 42,801 psi | 76% | 2552 fps | 99.2% |
| Vihtavuori N540 | <<locked>> | 80% | 36,782 psi | 65% | 2448 fps | 99.6% |
| Vihtavuori N550 | <<locked>> | 90% | 37,028 psi | 65% | 2520 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 34,983 psi | 62% | 2549 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 31,836 psi | 56% | 2346 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 41,495 psi | 73% | 2589 fps | 99.5% |
| Winchester 760 | <<locked>> | 96% | 46,122 psi | 82% | 2710 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,392 psi | 68% | 2516 fps | 97.9% |
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 84 powders for 7.62 x 53 R Fin. loaded with the .308 | 170gr | Impala RNFP KO. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,657 fps to 2,838 fps. Accurate 4350 gives the best case fill at 100 %, and 84 of the 84 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 62–90 %, leaving at least 10 % headroom. The 170.0 gr projectile in 0.308" calls for a 1:12.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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. ReloadSwiss RS 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 7.62 x 53 R Fin. with the .308 | 170gr | Impala RNFP KO 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.