Load Specifications
Load data in caliber 7.62 x 53 R Fin. with .308 | 125gr | Sierra MatchKing bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 1200-R, Winchester 748 and IMR 3031.
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>> | 94% | 51,024 psi | 90% | 3097 fps | 100% |
| Accurate 2230 | <<locked>> | 84% | 49,327 psi | 87% | 3123 fps | 96% |
| Accurate 2460 | <<locked>> | 90% | 49,864 psi | 88% | 3107 fps | 99.5% |
| Accurate 2495ᴾ | <<locked>> | 100% | 49,792 psi | 88% | 3140 fps | 100% |
| Accurate 2520 | <<locked>> | 94% | 50,415 psi | 89% | 3159 fps | 99.3% |
| Accurate 4064ᴾ | <<locked>> | 100% | 46,151 psi | 82% | 3110 fps | 99.5% |
| Accurate LT-30 | <<locked>> | 86% | 50,125 psi | 89% | 3005 fps | 99.9% |
| Accurate LT-32 | <<locked>> | 86% | 50,531 psi | 89% | 3022 fps | 99.2% |
| ADI AR 2206H | <<locked>> | 96% | 50,415 psi | 89% | 3156 fps | 96.9% |
| ADI AR 2207 | <<locked>> | 84% | 50,502 psi | 89% | 3048 fps | 100% |
| ADI AR 2219 | <<locked>> | 86% | 48,617 psi | 86% | 3117 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 94% | 50,067 psi | 89% | 3120 fps | 98% |
| Alliant AR-Comp | <<locked>> | 96% | 51,010 psi | 90% | 3179 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 90% | 50,633 psi | 90% | 3232 fps | 97.6% |
| Alliant Reloder- TS 15.5ᴾ | <<locked>> | 100% | 46,064 psi | 81% | 3100 fps | 97% |
| Alliant Reloder-10x | <<locked>> | 88% | 48,472 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-15ᴾ | <<locked>> | 100% | 50,604 psi | 89% | 3179 fps | 96.4% |
| Alliant Reloder-7 | <<locked>> | 82% | 48,660 psi | 86% | 3009 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 86% | 48,631 psi | 86% | 2992 fps | 99.9% |
| Bofors RP3ᴾ | <<locked>> | 100% | 45,948 psi | 81% | 3110 fps | 97.1% |
| Hodgdon Benchmark | <<locked>> | 92% | 49,806 psi | 88% | 3068 fps | 98.4% |
| Hodgdon BL-C2 | <<locked>> | 94% | 47,964 psi | 85% | 3143 fps | 98.3% |
| Hodgdon CFE223 | <<locked>> | 92% | 49,879 psi | 88% | 3228 fps | 96.1% |
| Hodgdon H322 | <<locked>> | 90% | 50,473 psi | 89% | 3146 fps | 99.9% |
| Hodgdon H335 | <<locked>> | 88% | 48,327 psi | 85% | 3114 fps | 99.5% |
| Hodgdon H4198 | <<locked>> | 82% | 48,733 psi | 86% | 3005 fps | 99.7% |
| Hodgdon H4895 | <<locked>> | 96% | 50,691 psi | 90% | 3173 fps | 97.5% |
| Hodgdon LEVERevolution | <<locked>> | 98% | 48,559 psi | 86% | 3179 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 33,199 psi | 59% | 1926 fps | 100% |
| Hodgdon VARGET | <<locked>> | 96% | 49,168 psi | 87% | 3120 fps | 97.1% |
| IMR 3031 | <<locked>> | 96% | 48,573 psi | 86% | 3179 fps | 100% |
| IMR 4064ᴾ | <<locked>> | 100% | 50,546 psi | 89% | 3120 fps | 96.3% |
| IMR 4198 | <<locked>> | 88% | 49,501 psi | 88% | 3041 fps | 100% |
| IMR 4895 | <<locked>> | 98% | 48,443 psi | 86% | 3159 fps | 96.6% |
| IMR 8208 XBR | <<locked>> | 94% | 50,067 psi | 89% | 3120 fps | 98% |
| Lovex D073.4 | <<locked>> | 84% | 49,966 psi | 88% | 3120 fps | 99.1% |
| Lovex D073.5 | <<locked>> | 90% | 49,864 psi | 88% | 3110 fps | 98.7% |
| Lovex D073.6 | <<locked>> | 96% | 48,080 psi | 85% | 3133 fps | 99.1% |
| Lovex S060 | <<locked>> | 94% | 48,747 psi | 86% | 3038 fps | 96.5% |
| Lovex S062ᴾ | <<locked>> | 100% | 49,371 psi | 87% | 3123 fps | 98% |
| Norma 200 | <<locked>> | 84% | 48,399 psi | 86% | 3045 fps | 100% |
| Norma 201 | <<locked>> | 96% | 49,139 psi | 87% | 3107 fps | 97.9% |
| Norma 202 | <<locked>> | 96% | 48,965 psi | 87% | 3120 fps | 99.5% |
| Norma 203Bᴾ | <<locked>> | 100% | 49,603 psi | 88% | 3166 fps | 96.8% |
| Ramshot Big Gameᴾ | <<locked>> | 100% | 50,502 psi | 89% | 3189 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 94% | 49,269 psi | 87% | 3140 fps | 96.6% |
| Ramshot X-Terminator | <<locked>> | 90% | 48,747 psi | 86% | 3064 fps | 96.2% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 33,127 psi | 59% | 1969 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 90% | 50,024 psi | 88% | 3120 fps | 99% |
| ReloadSwiss RS 52 | <<locked>> | 98% | 49,690 psi | 88% | 3238 fps | 96.1% |
| ReloadSwiss RS 60ᴾ | <<locked>> | 100% | 44,396 psi | 78% | 3143 fps | 98.1% |
| Rottweil R 901 | <<locked>> | 94% | 50,154 psi | 89% | 3110 fps | 99.5% |
| Rottweil R 902 | <<locked>> | 98% | 49,327 psi | 87% | 3097 fps | 97.9% |
| Rottweil R 903ᴾ | <<locked>> | 100% | 42,482 psi | 75% | 3031 fps | 95.9% |
| Shooters World AR Plus | <<locked>> | 84% | 49,966 psi | 88% | 3120 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 96% | 48,080 psi | 85% | 3133 fps | 99.1% |
| Shooters World Precisionᴾ | <<locked>> | 100% | 49,371 psi | 87% | 3123 fps | 98% |
| Shooters World Tactical Rifle | <<locked>> | 88% | 50,633 psi | 90% | 3081 fps | 97.7% |
| SNPE Vectan BA6 1/2 | <<locked>> | 82% | 48,718 psi | 86% | 2746 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 86% | 49,356 psi | 87% | 3123 fps | 99.5% |
| SNPE Vectan SP 3 | <<locked>> | 88% | 49,327 psi | 87% | 3084 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 96% | 48,646 psi | 86% | 3117 fps | 96.5% |
| SNPE Vectan Tubal 3000 | <<locked>> | 94% | 48,965 psi | 87% | 3022 fps | 99.4% |
| SNPE Vectan Tubal 5000ᴾ | <<locked>> | 100% | 47,674 psi | 84% | 3009 fps | 99.8% |
| Somchem S321 | <<locked>> | 90% | 47,732 psi | 84% | 3100 fps | 97.9% |
| Somchem S335 | <<locked>> | 96% | 50,749 psi | 90% | 3071 fps | 99.9% |
| Somchem S341 | <<locked>> | 96% | 50,908 psi | 90% | 3133 fps | 96.8% |
| Somchem S355ᴾ | <<locked>> | 100% | 43,816 psi | 77% | 3041 fps | 96% |
| Vihtavuori N120 | <<locked>> | 84% | 50,517 psi | 89% | 2992 fps | 100% |
| Vihtavuori N130 | <<locked>> | 90% | 48,936 psi | 87% | 3015 fps | 100% |
| Vihtavuori N133 | <<locked>> | 94% | 48,457 psi | 86% | 3018 fps | 100% |
| Vihtavuori N135ᴾ | <<locked>> | 100% | 50,285 psi | 89% | 3136 fps | 100% |
| Vihtavuori N140 | <<locked>> | 98% | 49,603 psi | 88% | 3100 fps | 99.7% |
| Vihtavuori N150ᴾ | <<locked>> | 100% | 42,293 psi | 75% | 2976 fps | 97% |
| Vihtavuori N530 | <<locked>> | 94% | 50,459 psi | 89% | 3117 fps | 98.1% |
| Vihtavuori N540ᴾ | <<locked>> | 100% | 50,952 psi | 90% | 3143 fps | 99.6% |
| Winchester 748 | <<locked>> | 94% | 48,617 psi | 86% | 3159 fps | 98.6% |
| Winchester StaBALL Match | <<locked>> | 96% | 47,834 psi | 85% | 3123 fps | 97% |
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% | 32,866 psi | 58% | 2733 fps | 98.7% |
| Accurate 2230 | <<locked>> | 82% | 45,774 psi | 81% | 3054 fps | 95.1% |
| Accurate 2460 | <<locked>> | 80% | 35,447 psi | 63% | 2815 fps | 96.8% |
| Accurate 2495 | <<locked>> | 80% | 25,498 psi | 45% | 2595 fps | 96.7% |
| Accurate 2520 | <<locked>> | 82% | 33,156 psi | 59% | 2799 fps | 95.6% |
| Accurate 4064 | <<locked>> | 86% | 29,399 psi | 52% | 2723 fps | 95.5% |
| Accurate LT-30 | <<locked>> | 80% | 41,597 psi | 74% | 2848 fps | 99.2% |
| Accurate LT-32 | <<locked>> | 80% | 41,959 psi | 74% | 2861 fps | 97.9% |
| ADI AR 2206H | <<locked>> | 92% | 44,237 psi | 78% | 3038 fps | 95.4% |
| ADI AR 2207 | <<locked>> | 80% | 44,556 psi | 79% | 2949 fps | 100% |
| ADI AR 2219 | <<locked>> | 80% | 39,813 psi | 70% | 2946 fps | 98.9% |
| ADI Benchmark 8208 | <<locked>> | 86% | 39,030 psi | 69% | 2894 fps | 95.3% |
| Alliant AR-Comp | <<locked>> | 80% | 30,168 psi | 53% | 2756 fps | 99.8% |
| Alliant Power Pro 1200-R | 44.6 gr | 84% | 41,452 psi | 73% | 3045 fps | 95.4% |
| Alliant Reloder- TS 15.5 | <<locked>> | 96% | 40,524 psi | 72% | 2986 fps | 95.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 37,782 psi | 67% | 2864 fps | 99.9% |
| Alliant Reloder-15 | <<locked>> | 98% | 47,311 psi | 84% | 3120 fps | 95.6% |
| Alliant Reloder-7 | <<locked>> | 80% | 45,803 psi | 81% | 2959 fps | 100% |
| Baschieri & Pellagri 106 | <<locked>> | 80% | 40,147 psi | 71% | 2835 fps | 99.2% |
| Bofors RP3 | <<locked>> | 96% | 39,958 psi | 71% | 2986 fps | 95.5% |
| Hodgdon Benchmark | <<locked>> | 82% | 36,782 psi | 65% | 2795 fps | 95.3% |
| Hodgdon BL-C2 | <<locked>> | 86% | 36,201 psi | 64% | 2894 fps | 95.3% |
| Hodgdon CFE223 | <<locked>> | 90% | 46,427 psi | 82% | 3159 fps | 95.2% |
| Hodgdon H322 | <<locked>> | 80% | 36,201 psi | 64% | 2861 fps | 98.2% |
| Hodgdon H335 | <<locked>> | 80% | 36,825 psi | 65% | 2874 fps | 97.4% |
| Hodgdon H4198 | <<locked>> | 80% | 45,847 psi | 81% | 2949 fps | 99.4% |
| Hodgdon H4895 | <<locked>> | 90% | 41,858 psi | 74% | 2995 fps | 95.4% |
| Hodgdon LEVERevolution | <<locked>> | 92% | 39,987 psi | 71% | 2999 fps | 95.2% |
| Hodgdon TrailBoss | <<locked>> | 80% | 24,468 psi | 43% | 1722 fps | 100% |
| Hodgdon VARGET | <<locked>> | 92% | 43,366 psi | 77% | 3005 fps | 95.7% |
| IMR 3031 | 41 gr | 80% | 28,761 psi | 51% | 2717 fps | 96.6% |
| IMR 4064 | <<locked>> | 98% | 47,558 psi | 84% | 3068 fps | 95.6% |
| IMR 4198 | <<locked>> | 80% | 39,030 psi | 69% | 2848 fps | 100% |
| IMR 4895 | <<locked>> | 94% | 42,627 psi | 75% | 3045 fps | 95.1% |
| IMR 8208 XBR | <<locked>> | 86% | 39,030 psi | 69% | 2894 fps | 95.3% |
| Lovex D073.4 | <<locked>> | 80% | 43,250 psi | 76% | 2995 fps | 98.1% |
| Lovex D073.5 | <<locked>> | 80% | 35,259 psi | 62% | 2808 fps | 95.3% |
| Lovex D073.6 | <<locked>> | 84% | 31,879 psi | 56% | 2779 fps | 95.1% |
| Lovex S060 | <<locked>> | 90% | 43,149 psi | 76% | 2930 fps | 95% |
| Lovex S062 | <<locked>> | 92% | 38,522 psi | 68% | 2904 fps | 95.4% |
| Norma 200 | <<locked>> | 80% | 42,844 psi | 76% | 2946 fps | 100% |
| Norma 201 | <<locked>> | 88% | 38,189 psi | 68% | 2877 fps | 95.2% |
| Norma 202 | <<locked>> | 82% | 31,299 psi | 55% | 2733 fps | 95.6% |
| Norma 203B | <<locked>> | 96% | 43,685 psi | 77% | 3054 fps | 95.4% |
| Ramshot Big Game | <<locked>> | 98% | 47,036 psi | 83% | 3123 fps | 95.7% |
| Ramshot Wild Boar | <<locked>> | 90% | 43,207 psi | 76% | 3022 fps | 95% |
| Ramshot X-Terminator | <<locked>> | 88% | 45,759 psi | 81% | 3005 fps | 95.5% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 24,526 psi | 43% | 1765 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 36,100 psi | 64% | 2831 fps | 96.1% |
| ReloadSwiss RS 52 | <<locked>> | 96% | 46,383 psi | 82% | 3173 fps | 95.2% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 36,318 psi | 64% | 2940 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 33,112 psi | 59% | 2736 fps | 95.9% |
| Rottweil R 902 | <<locked>> | 90% | 38,566 psi | 68% | 2877 fps | 95.3% |
| Rottweil R 903 | <<locked>> | 98% | 39,842 psi | 70% | 2972 fps | 95.1% |
| Shooters World AR Plus | <<locked>> | 80% | 43,250 psi | 76% | 2995 fps | 98.1% |
| Shooters World Match Rifle | <<locked>> | 84% | 31,879 psi | 56% | 2779 fps | 95.1% |
| Shooters World Precision | <<locked>> | 92% | 38,522 psi | 68% | 2904 fps | 95.4% |
| Shooters World Tactical Rifle | <<locked>> | 82% | 41,133 psi | 73% | 2900 fps | 95.5% |
| SNPE Vectan BA6 1/2 | <<locked>> | 80% | 46,398 psi | 82% | 2710 fps | 100% |
| SNPE Vectan SP 10 | <<locked>> | 80% | 40,321 psi | 71% | 2946 fps | 98.1% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 38,319 psi | 68% | 2871 fps | 99.2% |
| SNPE Vectan SP 9 | <<locked>> | 94% | 45,658 psi | 81% | 3058 fps | 95.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 31,676 psi | 56% | 2651 fps | 95.6% |
| SNPE Vectan Tubal 5000 | <<locked>> | 82% | 27,253 psi | 48% | 2543 fps | 95% |
| Somchem S321 | <<locked>> | 84% | 38,943 psi | 69% | 2920 fps | 95.8% |
| Somchem S335 | <<locked>> | 80% | 31,067 psi | 55% | 2654 fps | 96.4% |
| Somchem S341 | <<locked>> | 92% | 44,672 psi | 79% | 3022 fps | 95.3% |
| Somchem S355 | <<locked>> | 98% | 41,278 psi | 73% | 2986 fps | 95.2% |
| Vihtavuori N120 | <<locked>> | 80% | 44,628 psi | 79% | 2900 fps | 100% |
| Vihtavuori N130 | <<locked>> | 80% | 36,071 psi | 64% | 2769 fps | 99.7% |
| Vihtavuori N133 | <<locked>> | 80% | 31,459 psi | 56% | 2667 fps | 98.2% |
| Vihtavuori N135 | <<locked>> | 80% | 26,469 psi | 47% | 2612 fps | 96.8% |
| Vihtavuori N140 | <<locked>> | 82% | 29,689 psi | 52% | 2664 fps | 95.4% |
| Vihtavuori N150 | <<locked>> | 96% | 37,130 psi | 66% | 2864 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 86% | 38,914 psi | 69% | 2890 fps | 95.4% |
| Vihtavuori N540 | <<locked>> | 84% | 30,472 psi | 54% | 2700 fps | 95% |
| Winchester 748 | 46.7 gr | 84% | 34,954 psi | 62% | 2861 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 92% | 41,901 psi | 74% | 3002 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 91 powders for 7.62 x 53 R Fin. loaded with the .308 | 125gr | Sierra MatchKing. ReloadSwiss RS 52 delivers the highest muzzle velocity at 3,238 fps; across all powders the maximum-charge window runs from 1,926 fps to 3,238 fps. Accurate 2495 gives the best case fill at 100 %, and 91 of the 91 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (390 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 125.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 2495, Accurate 4064, ADI AR 2208 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 1200-R, Winchester 748, IMR 3031 rank at the top here: for 7.62 x 53 R Fin. with the .308 | 125gr | Sierra MatchKing they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Alliant Reloder-17, Hodgdon H380, IMR 4166 Enduron burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.