Load Specifications
Load data in caliber 7.62 x 53 R Fin. with .311 | 180gr | Sierra Pro-Hunter bullet and 95 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.
A valid access license is required to use the Personalized Load Calculator.
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% | 50,067 psi | 89% | 2569 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 50,662 psi | 90% | 2628 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 49,414 psi | 87% | 2644 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 50,894 psi | 90% | 2615 fps | 96% |
| Accurate 4064 | <<locked>> | 92% | 50,792 psi | 90% | 2674 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 49,313 psi | 87% | 2736 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 86% | 48,762 psi | 86% | 2651 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 92% | 49,850 psi | 88% | 2654 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 51,184 psi | 90% | 2657 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 47,877 psi | 85% | 2592 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 47,703 psi | 84% | 2753 fps | 99.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 49,153 psi | 87% | 2674 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 90% | 50,009 psi | 88% | 2694 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 48,704 psi | 86% | 2746 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 49,269 psi | 87% | 2782 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 34,418 psi | 61% | 2490 fps | 97.5% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 37,782 psi | 67% | 2621 fps | 96.1% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 48,167 psi | 85% | 2664 fps | 99% |
| Bofors RP3 | <<locked>> | 92% | 49,197 psi | 87% | 2684 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 50,227 psi | 89% | 2651 fps | 96.3% |
| Hodgdon Benchmark | <<locked>> | 84% | 50,183 psi | 89% | 2598 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 49,966 psi | 88% | 2687 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 47,964 psi | 85% | 2720 fps | 99.4% |
| Hodgdon H380 | <<locked>> | 92% | 50,720 psi | 90% | 2697 fps | 98.9% |
| Hodgdon H414 | <<locked>> | 98% | 49,385 psi | 87% | 2733 fps | 97% |
| Hodgdon H4895 | <<locked>> | 86% | 49,168 psi | 87% | 2664 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 44,643 psi | 79% | 2625 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 47,921 psi | 85% | 2694 fps | 99.9% |
| Hodgdon Superformance | <<locked>> | 98% | 50,372 psi | 89% | 2762 fps | 96.4% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,998 psi | 62% | 1624 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 50,372 psi | 89% | 2667 fps | 99.9% |
| IMR 3031 | <<locked>> | 86% | 48,646 psi | 86% | 2651 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 49,429 psi | 87% | 2638 fps | 99.5% |
| IMR 4166 Enduron | <<locked>> | 88% | 49,588 psi | 88% | 2612 fps | 96.7% |
| IMR 4350ᴾ | <<locked>> | 100% | 49,792 psi | 88% | 2671 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 94% | 49,139 psi | 87% | 2635 fps | 96.5% |
| IMR 4831ᴾ | <<locked>> | 100% | 47,050 psi | 83% | 2680 fps | 98.9% |
| IMR 4895 | <<locked>> | 88% | 47,993 psi | 85% | 2674 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 51,184 psi | 90% | 2657 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 51,169 psi | 90% | 2644 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 51,039 psi | 90% | 2677 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 49,081 psi | 87% | 2589 fps | 99.6% |
| Lovex S062 | <<locked>> | 90% | 49,037 psi | 87% | 2638 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 48,008 psi | 85% | 2628 fps | 97.8% |
| Lovex S070 | <<locked>> | 98% | 48,472 psi | 86% | 2654 fps | 96.8% |
| Norma 201 | <<locked>> | 88% | 50,879 psi | 90% | 2651 fps | 100% |
| Norma 202 | <<locked>> | 88% | 51,082 psi | 90% | 2654 fps | 100% |
| Norma 203B | <<locked>> | 90% | 49,255 psi | 87% | 2684 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 49,124 psi | 87% | 2730 fps | 99.1% |
| Ramshot Big Game | <<locked>> | 90% | 49,226 psi | 87% | 2703 fps | 99.6% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 48,356 psi | 85% | 2723 fps | 97.5% |
| Ramshot TAC | <<locked>> | 84% | 48,414 psi | 86% | 2625 fps | 98% |
| Ramshot Wild Boar | <<locked>> | 86% | 50,604 psi | 89% | 2690 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 82% | 48,863 psi | 86% | 2608 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,259 psi | 62% | 1663 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 50,908 psi | 90% | 2641 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 48,080 psi | 85% | 2628 fps | 97.1% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 49,472 psi | 87% | 2749 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 49,182 psi | 87% | 2785 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 49,081 psi | 87% | 2759 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 49,835 psi | 88% | 2782 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 84% | 49,168 psi | 87% | 2595 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 51,140 psi | 90% | 2648 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 49,081 psi | 87% | 2674 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 50,227 psi | 89% | 2651 fps | 96.3% |
| Shooters World Long Rifle | <<locked>> | 96% | 48,008 psi | 85% | 2628 fps | 97.8% |
| Shooters World Match Rifle | <<locked>> | 88% | 51,039 psi | 90% | 2677 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 49,037 psi | 87% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 48,472 psi | 86% | 2654 fps | 96.8% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 50,836 psi | 90% | 2736 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 49,443 psi | 87% | 2644 fps | 98.6% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 50,357 psi | 89% | 2677 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 49,734 psi | 88% | 2552 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 49,487 psi | 87% | 2552 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 47,993 psi | 85% | 2579 fps | 96.4% |
| Somchem S321 | <<locked>> | 82% | 48,776 psi | 86% | 2641 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 49,110 psi | 87% | 2556 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 49,182 psi | 87% | 2644 fps | 99.6% |
| Somchem S355 | <<locked>> | 94% | 49,937 psi | 88% | 2677 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 43,613 psi | 77% | 2680 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 49,705 psi | 88% | 2523 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 49,879 psi | 88% | 2543 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 50,647 psi | 90% | 2618 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 48,544 psi | 86% | 2592 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 47,892 psi | 85% | 2612 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 48,443 psi | 86% | 2677 fps | 98.9% |
| Vihtavuori N530 | <<locked>> | 84% | 48,515 psi | 86% | 2612 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 49,864 psi | 88% | 2635 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 50,705 psi | 90% | 2733 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 36,637 psi | 65% | 2559 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 49,124 psi | 87% | 2661 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 51,068 psi | 90% | 2703 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 49,632 psi | 88% | 2736 fps | 97% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 30,748 psi | 54% | 2464 fps | 96.4% |
| Winchester StaBALL Match | <<locked>> | 88% | 49,879 psi | 88% | 2680 fps | 99.9% |
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% | 44,019 psi | 78% | 2480 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 36,550 psi | 65% | 2408 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 43,236 psi | 76% | 2549 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 47,703 psi | 84% | 2566 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 34,534 psi | 61% | 2398 fps | 99.9% |
| Accurate 4350 | <<locked>> | 88% | 32,619 psi | 58% | 2421 fps | 95.3% |
| ADI AR 2206H | <<locked>> | 80% | 40,538 psi | 72% | 2507 fps | 98.6% |
| ADI AR 2208 | <<locked>> | 80% | 34,447 psi | 61% | 2362 fps | 96.3% |
| ADI Benchmark 8208 | <<locked>> | 80% | 42,598 psi | 75% | 2516 fps | 99.6% |
| Alliant AR-Comp | <<locked>> | 80% | 42,032 psi | 74% | 2507 fps | 100% |
| Alliant Power Pro 2000-MR | 45 gr | 80% | 36,463 psi | 64% | 2523 fps | 96.7% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 33,794 psi | 60% | 2388 fps | 97.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 36,405 psi | 64% | 2444 fps | 97.2% |
| Alliant Reloder-16 | <<locked>> | 88% | 33,808 psi | 60% | 2438 fps | 95.5% |
| Alliant Reloder-17 | 44.3 gr | 80% | 29,051 psi | 51% | 2343 fps | 95.3% |
| Alliant Reloder-23 | <<locked>> | 96% | 30,487 psi | 54% | 2388 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 35,404 psi | 63% | 2562 fps | 95.1% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 39,421 psi | 70% | 2507 fps | 97.4% |
| Bofors RP3 | <<locked>> | 80% | 33,025 psi | 58% | 2385 fps | 97.8% |
| Bofors RP7 | <<locked>> | 94% | 47,036 psi | 83% | 2598 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 80% | 44,396 psi | 78% | 2507 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 40,770 psi | 72% | 2533 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 44,860 psi | 79% | 2667 fps | 99% |
| Hodgdon H380 | <<locked>> | 80% | 34,156 psi | 60% | 2388 fps | 95% |
| Hodgdon H414 | <<locked>> | 94% | 43,526 psi | 77% | 2631 fps | 95.5% |
| Hodgdon H4895 | <<locked>> | 80% | 40,886 psi | 72% | 2520 fps | 99.1% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 29,037 psi | 51% | 2290 fps | 95.5% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 36,767 psi | 65% | 2490 fps | 98.7% |
| Hodgdon Superformance | <<locked>> | 96% | 46,833 psi | 83% | 2703 fps | 95.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,918 psi | 46% | 1450 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 39,160 psi | 69% | 2470 fps | 98.7% |
| IMR 3031 | <<locked>> | 80% | 39,900 psi | 71% | 2513 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 36,100 psi | 64% | 2395 fps | 97.1% |
| IMR 4166 Enduron | <<locked>> | 84% | 43,845 psi | 78% | 2513 fps | 95.3% |
| IMR 4350 | <<locked>> | 98% | 46,963 psi | 83% | 2621 fps | 95.6% |
| IMR 4451 Enduron | <<locked>> | 90% | 43,497 psi | 77% | 2536 fps | 95.1% |
| IMR 4831 | <<locked>> | 88% | 31,908 psi | 56% | 2385 fps | 95% |
| IMR 4895 | <<locked>> | 80% | 37,275 psi | 66% | 2474 fps | 98% |
| IMR 8208 XBR | <<locked>> | 80% | 42,598 psi | 75% | 2516 fps | 99.6% |
| Lovex D073.5 | <<locked>> | 80% | 47,616 psi | 84% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 39,204 psi | 69% | 2490 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 40,944 psi | 72% | 2448 fps | 98.6% |
| Lovex S062 | <<locked>> | 80% | 35,897 psi | 63% | 2402 fps | 98.7% |
| Lovex S065 | <<locked>> | 88% | 37,739 psi | 67% | 2438 fps | 95.2% |
| Lovex S070 | <<locked>> | 94% | 42,801 psi | 76% | 2559 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 39,595 psi | 70% | 2461 fps | 99.3% |
| Norma 202 | <<locked>> | 80% | 39,871 psi | 70% | 2474 fps | 100% |
| Norma 203B | <<locked>> | 80% | 35,810 psi | 63% | 2434 fps | 97.6% |
| Norma URP | <<locked>> | 88% | 33,489 psi | 59% | 2428 fps | 95.3% |
| Ramshot Big Game | <<locked>> | 80% | 35,027 psi | 62% | 2441 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 39,856 psi | 70% | 2566 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 42,409 psi | 75% | 2516 fps | 96.7% |
| Ramshot Wild Boar | <<locked>> | 80% | 41,684 psi | 74% | 2539 fps | 98.8% |
| Ramshot X-Terminator | <<locked>> | 80% | 45,876 psi | 81% | 2559 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,252 psi | 46% | 1486 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 47,674 psi | 84% | 2592 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 42,250 psi | 75% | 2526 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 37,492 psi | 66% | 2533 fps | 97.5% |
| ReloadSwiss RS 60 | 44.3 gr | 80% | 30,937 psi | 55% | 2408 fps | 98.6% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 34,925 psi | 62% | 2490 fps | 95.6% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 38,174 psi | 67% | 2556 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 43,700 psi | 77% | 2507 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 37,913 psi | 67% | 2421 fps | 99% |
| Rottweil R 903 | <<locked>> | 80% | 31,125 psi | 55% | 2333 fps | 96.9% |
| Rottweil R 907 | <<locked>> | 94% | 47,036 psi | 83% | 2598 fps | 95.5% |
| Shooters World Long Rifle | <<locked>> | 88% | 37,739 psi | 67% | 2438 fps | 95.2% |
| Shooters World Match Rifle | <<locked>> | 80% | 39,204 psi | 69% | 2490 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 35,897 psi | 63% | 2402 fps | 98.7% |
| Shooters World SW4350 | <<locked>> | 94% | 42,801 psi | 76% | 2559 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 32,126 psi | 57% | 2375 fps | 96.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 40,321 psi | 71% | 2487 fps | 96.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 38,870 psi | 69% | 2474 fps | 98.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 41,336 psi | 73% | 2425 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 34,127 psi | 60% | 2300 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 42,061 psi | 74% | 2480 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 45,730 psi | 81% | 2592 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 40,712 psi | 72% | 2425 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 40,176 psi | 71% | 2490 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 32,097 psi | 57% | 2339 fps | 96.9% |
| Somchem S365 | <<locked>> | 84% | 26,295 psi | 46% | 2274 fps | 95.8% |
| Vihtavuori N130 | <<locked>> | 80% | 46,818 psi | 83% | 2484 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 41,539 psi | 73% | 2418 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 36,941 psi | 65% | 2408 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 37,623 psi | 67% | 2411 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 30,530 psi | 54% | 2283 fps | 97.8% |
| Vihtavuori N160 | <<locked>> | 88% | 35,099 psi | 62% | 2428 fps | 95.8% |
| Vihtavuori N530 | <<locked>> | 80% | 42,395 psi | 75% | 2510 fps | 99.6% |
| Vihtavuori N540 | <<locked>> | 80% | 36,216 psi | 64% | 2405 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 34,316 psi | 61% | 2431 fps | 95.4% |
| Vihtavuori N555 | <<locked>> | 94% | 30,342 psi | 54% | 2408 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 29,138 psi | 52% | 2257 fps | 95.5% |
| Winchester 748 | <<locked>> | 80% | 41,553 psi | 73% | 2552 fps | 99.9% |
| Winchester 760 | <<locked>> | 94% | 43,526 psi | 77% | 2631 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 98% | 28,863 psi | 51% | 2402 fps | 95.1% |
| Winchester StaBALL Match | <<locked>> | 80% | 38,305 psi | 68% | 2480 fps | 98.7% |
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 95 powders for 7.62 x 53 R Fin. loaded with the .311 | 180gr | Sierra Pro-Hunter. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,785 fps; across all powders the maximum-charge window runs from 1,624 fps to 2,785 fps. Accurate 4350 gives the best case fill at 100 %, and 95 of the 95 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 180.0 gr projectile in 0.311" calls for a 1:14.5 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 .311 | 180gr | Sierra Pro-Hunter 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.