Load Specifications
Load data in caliber 7.62 x 53 R Fin. with .308 | 180gr | Norma Bondstrike bullet and 95 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 60 and Alliant Reloder-17.
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>> | 86% | 50,821 psi | 90% | 2562 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 48,863 psi | 86% | 2579 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 48,037 psi | 85% | 2579 fps | 100% |
| Accurate 2520 | <<locked>> | 86% | 50,198 psi | 89% | 2638 fps | 100% |
| Accurate 4064 | <<locked>> | 94% | 51,111 psi | 90% | 2661 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 46,615 psi | 82% | 2674 fps | 98.6% |
| ADI AR 2206H | <<locked>> | 88% | 49,763 psi | 88% | 2648 fps | 99.6% |
| ADI AR 2208 | <<locked>> | 94% | 50,560 psi | 89% | 2641 fps | 99.3% |
| ADI Benchmark 8208 | <<locked>> | 86% | 49,182 psi | 87% | 2608 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 86% | 48,791 psi | 86% | 2589 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 50,444 psi | 89% | 2700 fps | 99.9% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 48,805 psi | 86% | 2746 fps | 99.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 50,038 psi | 88% | 2667 fps | 99.9% |
| Alliant Reloder-10x | <<locked>> | 82% | 50,676 psi | 90% | 2566 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 50,604 psi | 89% | 2684 fps | 99.4% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 46,224 psi | 82% | 2677 fps | 98.6% |
| Alliant Reloder-17 | <<locked>> | 98% | 50,125 psi | 89% | 2772 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 32,764 psi | 58% | 2425 fps | 96.4% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 49,168 psi | 87% | 2661 fps | 98.9% |
| Bofors RP3 | <<locked>> | 94% | 49,821 psi | 88% | 2674 fps | 99.9% |
| Bofors RP7 | <<locked>> | 98% | 50,952 psi | 90% | 2638 fps | 96% |
| Hodgdon Benchmark | <<locked>> | 84% | 48,240 psi | 85% | 2549 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 88% | 50,908 psi | 90% | 2680 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 48,979 psi | 87% | 2717 fps | 99.3% |
| Hodgdon H322 | <<locked>> | 82% | 49,516 psi | 88% | 2602 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 50,401 psi | 89% | 2628 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 48,124 psi | 85% | 2635 fps | 98.3% |
| Hodgdon H414ᴾ | <<locked>> | 100% | 50,169 psi | 89% | 2723 fps | 96.7% |
| Hodgdon H4895 | <<locked>> | 88% | 50,198 psi | 89% | 2657 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 42,409 psi | 75% | 2566 fps | 99% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 48,472 psi | 86% | 2684 fps | 99.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 34,766 psi | 61% | 1601 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 48,515 psi | 86% | 2615 fps | 99.7% |
| IMR 3031 | <<locked>> | 88% | 49,414 psi | 87% | 2644 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 50,328 psi | 89% | 2631 fps | 99.4% |
| IMR 4166 Enduron | <<locked>> | 90% | 50,952 psi | 90% | 2608 fps | 96.6% |
| IMR 4451 Enduron | <<locked>> | 96% | 50,111 psi | 89% | 2628 fps | 96.3% |
| IMR 4831ᴾ | <<locked>> | 100% | 44,338 psi | 78% | 2618 fps | 98.2% |
| IMR 4895 | <<locked>> | 90% | 48,718 psi | 86% | 2664 fps | 99.6% |
| IMR 8208 XBR | <<locked>> | 86% | 49,182 psi | 87% | 2608 fps | 99.9% |
| Lovex D073.5 | <<locked>> | 82% | 48,834 psi | 86% | 2592 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 48,414 psi | 86% | 2625 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 50,198 psi | 89% | 2585 fps | 99.6% |
| Lovex S062 | <<locked>> | 92% | 49,821 psi | 88% | 2628 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 48,805 psi | 86% | 2618 fps | 97.6% |
| Lovex S070ᴾ | <<locked>> | 100% | 49,095 psi | 87% | 2644 fps | 96.6% |
| Norma 201 | <<locked>> | 88% | 48,588 psi | 86% | 2598 fps | 99.9% |
| Norma 202 | <<locked>> | 88% | 49,008 psi | 87% | 2608 fps | 100% |
| Norma 203B | <<locked>> | 92% | 49,763 psi | 88% | 2674 fps | 99.6% |
| Norma URPᴾ | <<locked>> | 100% | 46,441 psi | 82% | 2664 fps | 98.4% |
| Ramshot Big Game | <<locked>> | 92% | 49,734 psi | 88% | 2690 fps | 99.5% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 45,818 psi | 81% | 2654 fps | 96.6% |
| Ramshot TAC | <<locked>> | 86% | 49,385 psi | 87% | 2615 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 86% | 48,588 psi | 86% | 2638 fps | 99.5% |
| Ramshot X-Terminator | <<locked>> | 84% | 50,082 psi | 89% | 2605 fps | 99.5% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,012 psi | 62% | 1640 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 48,820 psi | 86% | 2592 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 48,921 psi | 86% | 2618 fps | 96.9% |
| ReloadSwiss RS 52 | <<locked>> | 90% | 50,227 psi | 89% | 2743 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 96% | 49,922 psi | 88% | 2776 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 46,267 psi | 82% | 2694 fps | 98.2% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 47,239 psi | 84% | 2710 fps | 97.8% |
| Rottweil R 901 | <<locked>> | 86% | 49,864 psi | 88% | 2585 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 49,153 psi | 87% | 2598 fps | 99.9% |
| Rottweil R 903 | <<locked>> | 96% | 49,705 psi | 88% | 2664 fps | 99.8% |
| Rottweil R 907 | <<locked>> | 98% | 50,952 psi | 90% | 2638 fps | 96% |
| Shooters World Long Rifle | <<locked>> | 98% | 48,805 psi | 86% | 2618 fps | 97.6% |
| Shooters World Match Rifle | <<locked>> | 88% | 48,414 psi | 86% | 2625 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 49,821 psi | 88% | 2628 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 49,095 psi | 87% | 2644 fps | 96.6% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 48,312 psi | 85% | 2677 fps | 99.5% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 50,546 psi | 89% | 2641 fps | 98.5% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 48,008 psi | 85% | 2618 fps | 99.4% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 50,749 psi | 90% | 2549 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 50,053 psi | 88% | 2543 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 48,979 psi | 87% | 2572 fps | 96.2% |
| Somchem S321 | <<locked>> | 84% | 49,908 psi | 88% | 2638 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 49,763 psi | 88% | 2546 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 50,212 psi | 89% | 2638 fps | 99.6% |
| Somchem S355 | <<locked>> | 96% | 50,589 psi | 89% | 2667 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 41,408 psi | 73% | 2618 fps | 99.8% |
| Vihtavuori N130 | <<locked>> | 84% | 50,778 psi | 90% | 2520 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 50,763 psi | 90% | 2536 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 48,051 psi | 85% | 2569 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 49,298 psi | 87% | 2585 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 48,646 psi | 86% | 2602 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 49,124 psi | 87% | 2664 fps | 98.7% |
| Vihtavuori N530 | <<locked>> | 86% | 49,574 psi | 88% | 2605 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 92% | 50,589 psi | 89% | 2625 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 47,834 psi | 85% | 2667 fps | 98.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 34,606 psi | 61% | 2497 fps | 96.4% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 50,140 psi | 89% | 2651 fps | 99.9% |
| Winchester 748 | <<locked>> | 86% | 48,472 psi | 86% | 2648 fps | 100% |
| Winchester 760ᴾ | <<locked>> | 100% | 50,169 psi | 89% | 2723 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 90% | 50,923 psi | 90% | 2677 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% | 42,221 psi | 75% | 2434 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 45,890 psi | 81% | 2536 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 34,766 psi | 61% | 2362 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 41,118 psi | 73% | 2497 fps | 99.9% |
| Accurate 4064 | <<locked>> | 80% | 32,866 psi | 58% | 2349 fps | 99.6% |
| Accurate 4350 | <<locked>> | 90% | 32,837 psi | 58% | 2411 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 38,827 psi | 69% | 2454 fps | 98% |
| ADI AR 2208 | <<locked>> | 80% | 33,083 psi | 58% | 2313 fps | 95.5% |
| ADI Benchmark 8208 | <<locked>> | 80% | 40,857 psi | 72% | 2467 fps | 99.2% |
| Alliant AR-Comp | <<locked>> | 80% | 39,755 psi | 70% | 2457 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 47,326 psi | 84% | 2651 fps | 99.7% |
| Alliant Power Pro 2000-MR | 43 gr | 80% | 34,896 psi | 62% | 2461 fps | 95.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 32,053 psi | 57% | 2333 fps | 97.1% |
| Alliant Reloder-10x | <<locked>> | 80% | 47,790 psi | 84% | 2526 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 34,751 psi | 61% | 2392 fps | 96.4% |
| Alliant Reloder-16 | <<locked>> | 90% | 34,229 psi | 61% | 2425 fps | 95.1% |
| Alliant Reloder-17 | 43.4 gr | 82% | 29,675 psi | 52% | 2339 fps | 95.1% |
| Alliant Reloder-23 | <<locked>> | 98% | 30,893 psi | 55% | 2375 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 37,492 psi | 66% | 2448 fps | 96.5% |
| Bofors RP3 | <<locked>> | 80% | 31,357 psi | 55% | 2329 fps | 97% |
| Bofors RP7 | <<locked>> | 96% | 47,834 psi | 85% | 2589 fps | 95.3% |
| Hodgdon Benchmark | <<locked>> | 80% | 42,685 psi | 75% | 2457 fps | 99.7% |
| Hodgdon BL-C2 | <<locked>> | 80% | 38,870 psi | 69% | 2480 fps | 99.4% |
| Hodgdon CFE223 | <<locked>> | 80% | 42,583 psi | 75% | 2605 fps | 98.4% |
| Hodgdon H322 | <<locked>> | 80% | 46,398 psi | 82% | 2556 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 47,065 psi | 83% | 2579 fps | 100% |
| Hodgdon H380 | <<locked>> | 84% | 37,057 psi | 66% | 2431 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 96% | 43,961 psi | 78% | 2615 fps | 95.2% |
| Hodgdon H4895 | <<locked>> | 80% | 39,131 psi | 69% | 2467 fps | 98.5% |
| Hodgdon Hybrid 100V | <<locked>> | 88% | 29,443 psi | 52% | 2283 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 35,012 psi | 62% | 2434 fps | 98% |
| Hodgdon TrailBoss | <<locked>> | 80% | 25,831 psi | 46% | 1430 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 37,492 psi | 66% | 2418 fps | 98.1% |
| IMR 3031 | <<locked>> | 80% | 38,014 psi | 67% | 2464 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 34,664 psi | 61% | 2346 fps | 96.3% |
| IMR 4166 Enduron | <<locked>> | 86% | 44,875 psi | 79% | 2507 fps | 95.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 47,137 psi | 83% | 2579 fps | 95.7% |
| IMR 4831 | <<locked>> | 92% | 34,287 psi | 61% | 2421 fps | 95.5% |
| IMR 4895 | <<locked>> | 80% | 35,549 psi | 63% | 2421 fps | 97.3% |
| IMR 8208 XBR | <<locked>> | 80% | 40,857 psi | 72% | 2467 fps | 99.2% |
| Lovex D073.5 | <<locked>> | 80% | 45,614 psi | 81% | 2543 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 37,130 psi | 66% | 2434 fps | 99.7% |
| Lovex S060 | <<locked>> | 80% | 39,523 psi | 70% | 2398 fps | 98.1% |
| Lovex S062 | <<locked>> | 80% | 34,403 psi | 61% | 2352 fps | 98.1% |
| Lovex S065 | <<locked>> | 92% | 40,625 psi | 72% | 2477 fps | 95.7% |
| Lovex S070 | <<locked>> | 96% | 43,337 psi | 77% | 2546 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 38,072 psi | 67% | 2415 fps | 98.9% |
| Norma 202 | <<locked>> | 80% | 38,058 psi | 67% | 2425 fps | 99.9% |
| Norma 203B | <<locked>> | 80% | 34,156 psi | 60% | 2382 fps | 96.8% |
| Norma URP | <<locked>> | 90% | 33,852 psi | 60% | 2415 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 33,475 psi | 59% | 2385 fps | 96.2% |
| Ramshot Hunter | <<locked>> | 96% | 40,321 psi | 71% | 2552 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 40,582 psi | 72% | 2461 fps | 95.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 39,639 psi | 70% | 2480 fps | 98.1% |
| Ramshot X-Terminator | <<locked>> | 80% | 44,135 psi | 78% | 2507 fps | 98.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,150 psi | 46% | 1467 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 45,876 psi | 81% | 2546 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 88% | 43,018 psi | 76% | 2516 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 35,766 psi | 63% | 2477 fps | 96.7% |
| ReloadSwiss RS 60 | 42.3 gr | 80% | 29,530 psi | 52% | 2346 fps | 97.7% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 35,288 psi | 62% | 2477 fps | 95.3% |
| ReloadSwiss RS 70 | <<locked>> | 94% | 38,783 psi | 69% | 2543 fps | 95.3% |
| Rottweil R 901 | <<locked>> | 80% | 41,698 psi | 74% | 2454 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 36,158 psi | 64% | 2365 fps | 98.4% |
| Rottweil R 903 | <<locked>> | 80% | 29,501 psi | 52% | 2277 fps | 95.9% |
| Rottweil R 907 | <<locked>> | 96% | 47,834 psi | 85% | 2589 fps | 95.3% |
| Shooters World Long Rifle | <<locked>> | 92% | 40,625 psi | 72% | 2477 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 37,130 psi | 66% | 2434 fps | 99.7% |
| Shooters World Precision | <<locked>> | 80% | 34,403 psi | 61% | 2352 fps | 98.1% |
| Shooters World SW4350 | <<locked>> | 96% | 43,337 psi | 77% | 2546 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 30,792 psi | 54% | 2323 fps | 95.2% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 38,580 psi | 68% | 2434 fps | 95.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 37,318 psi | 66% | 2425 fps | 97.6% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 39,740 psi | 70% | 2375 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 32,677 psi | 58% | 2254 fps | 99.8% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 45,542 psi | 81% | 2520 fps | 95.4% |
| Somchem S321 | <<locked>> | 80% | 43,569 psi | 77% | 2536 fps | 99.7% |
| Somchem S335 | <<locked>> | 80% | 39,175 psi | 69% | 2379 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 38,218 psi | 68% | 2434 fps | 97.7% |
| Somchem S355 | <<locked>> | 80% | 30,690 psi | 54% | 2290 fps | 96.1% |
| Somchem S365 | <<locked>> | 86% | 26,803 psi | 47% | 2270 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 45,034 psi | 80% | 2438 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 39,871 psi | 70% | 2375 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 35,172 psi | 62% | 2359 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 35,926 psi | 64% | 2362 fps | 99.9% |
| Vihtavuori N150 | <<locked>> | 80% | 28,993 psi | 51% | 2231 fps | 97% |
| Vihtavuori N160 | <<locked>> | 90% | 35,549 psi | 63% | 2418 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 40,654 psi | 72% | 2461 fps | 99.3% |
| Vihtavuori N540 | <<locked>> | 80% | 34,461 psi | 61% | 2352 fps | 99.5% |
| Vihtavuori N550 | <<locked>> | 90% | 34,722 psi | 61% | 2421 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 98% | 32,474 psi | 57% | 2444 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 84% | 29,776 psi | 53% | 2254 fps | 95.3% |
| Winchester 748 | <<locked>> | 80% | 39,508 psi | 70% | 2497 fps | 99.6% |
| Winchester 760 | <<locked>> | 96% | 44,251 psi | 78% | 2621 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 36,521 psi | 65% | 2428 fps | 98% |
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 .308 | 180gr | Norma Bondstrike. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,776 fps; across all powders the maximum-charge window runs from 1,601 fps to 2,776 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 58–90 %, leaving at least 10 % headroom. The 180.0 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 60, Alliant Reloder-17 rank at the top here: for 7.62 x 53 R Fin. with the .308 | 180gr | Norma Bondstrike 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.