Load Specifications
Load data in caliber .300 Weath. Mag. with .308 | 156gr | Peregrine Backup (VRG-2) 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 Reloder-26, Norma MRP and ReloadSwiss RS 70.
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 2495 | <<locked>> | 82% | 54,868 psi | 86% | 2963 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 56,797 psi | 89% | 3041 fps | 98.6% |
| Accurate 3100ᴾ | <<locked>> | 100% | 54,853 psi | 86% | 3077 fps | 99.5% |
| Accurate 4064 | <<locked>> | 84% | 55,419 psi | 87% | 3022 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 56,956 psi | 89% | 3136 fps | 100% |
| Accurate High Country | <<locked>> | 98% | 56,463 psi | 88% | 3228 fps | 97.1% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 57,740 psi | 90% | 3232 fps | 96% |
| ADI AR 2208 | <<locked>> | 86% | 55,985 psi | 88% | 3061 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,520 psi | 85% | 3123 fps | 97.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 55,854 psi | 88% | 3176 fps | 96.6% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 55,506 psi | 87% | 3189 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 96% | 54,607 psi | 86% | 3117 fps | 97.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 56,898 psi | 89% | 3084 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 57,116 psi | 90% | 3110 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,201 psi | 85% | 3140 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 55,434 psi | 87% | 3163 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 57,566 psi | 90% | 3169 fps | 98.2% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3166 fps | 97.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,677 psi | 81% | 3094 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,904 psi | 70% | 3009 fps | 98.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 56,028 psi | 88% | 3248 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,125 psi | 79% | 3077 fps | 96.8% |
| Bofors RP3 | <<locked>> | 86% | 57,740 psi | 90% | 3100 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 54,839 psi | 86% | 3166 fps | 97.9% |
| Bofors RP7 | <<locked>> | 90% | 57,174 psi | 90% | 3087 fps | 98.8% |
| Hodgdon H380 | <<locked>> | 84% | 54,505 psi | 85% | 3061 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 90% | 55,579 psi | 87% | 3133 fps | 99% |
| Hodgdon H4350 | <<locked>> | 88% | 55,288 psi | 87% | 3091 fps | 98% |
| Hodgdon H4831 | <<locked>> | 98% | 56,115 psi | 88% | 3117 fps | 96% |
| Hodgdon Hybrid 100V | <<locked>> | 94% | 54,462 psi | 85% | 3061 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 55,767 psi | 87% | 3100 fps | 100% |
| Hodgdon Superformance | <<locked>> | 90% | 55,985 psi | 88% | 3169 fps | 98.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,216 psi | 57% | 1942 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 56,463 psi | 88% | 3068 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 55,361 psi | 87% | 3041 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 54,578 psi | 86% | 3022 fps | 98.8% |
| IMR 4350 | <<locked>> | 92% | 54,781 psi | 86% | 3061 fps | 98.5% |
| IMR 4451 Enduron | <<locked>> | 88% | 55,288 psi | 87% | 3058 fps | 98.9% |
| IMR 4831 | <<locked>> | 94% | 57,319 psi | 90% | 3127 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 54,853 psi | 86% | 3081 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 57,435 psi | 90% | 3104 fps | 96.5% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,258 psi | 83% | 3140 fps | 96.2% |
| Lovex S060 | <<locked>> | 82% | 56,971 psi | 89% | 3028 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 55,579 psi | 87% | 3035 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 55,274 psi | 87% | 3054 fps | 99.6% |
| Lovex S070 | <<locked>> | 92% | 56,782 psi | 89% | 3097 fps | 99.2% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,281 psi | 71% | 2910 fps | 98.1% |
| Norma 201 | <<locked>> | 82% | 56,652 psi | 89% | 3045 fps | 100% |
| Norma 202 | <<locked>> | 82% | 57,609 psi | 90% | 3045 fps | 100% |
| Norma 203B | <<locked>> | 84% | 56,391 psi | 88% | 3094 fps | 100% |
| Norma 204 | <<locked>> | 92% | 55,651 psi | 87% | 3117 fps | 97.7% |
| Norma MRP | <<locked>> | 98% | 54,520 psi | 85% | 3192 fps | 98.9% |
| Norma URP | <<locked>> | 92% | 55,724 psi | 87% | 3123 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 57,421 psi | 90% | 3120 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,679 psi | 84% | 3156 fps | 96.6% |
| Ramshot Hunter | <<locked>> | 92% | 54,607 psi | 86% | 3120 fps | 99.4% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,819 psi | 75% | 3018 fps | 97.1% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,941 psi | 58% | 1991 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 54,505 psi | 85% | 3045 fps | 99.2% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 54,940 psi | 86% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 57,000 psi | 89% | 3159 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 55,709 psi | 87% | 3192 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 43,903 psi | 69% | 3025 fps | 97% |
| Rottweil R 902 | <<locked>> | 84% | 57,493 psi | 90% | 3048 fps | 100% |
| Rottweil R 903 | <<locked>> | 86% | 54,012 psi | 85% | 3038 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 56,144 psi | 88% | 3094 fps | 96.8% |
| Rottweil R 905 | <<locked>> | 98% | 56,855 psi | 89% | 3156 fps | 98.2% |
| Rottweil R 907 | <<locked>> | 90% | 57,174 psi | 90% | 3087 fps | 98.8% |
| Shooters World Long Rifle | <<locked>> | 90% | 55,274 psi | 87% | 3054 fps | 99.6% |
| Shooters World Precision | <<locked>> | 84% | 55,579 psi | 87% | 3035 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 56,782 psi | 89% | 3097 fps | 99.2% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 55,854 psi | 88% | 3100 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 56,753 psi | 89% | 3077 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 57,522 psi | 90% | 2976 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 55,114 psi | 86% | 2927 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,984 psi | 86% | 3002 fps | 98.9% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 56,362 psi | 88% | 3150 fps | 98.1% |
| Somchem S335 | <<locked>> | 82% | 57,159 psi | 90% | 2969 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 57,682 psi | 90% | 3094 fps | 100% |
| Somchem S365 | <<locked>> | 94% | 55,056 psi | 86% | 3123 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 57,421 psi | 90% | 3130 fps | 98.9% |
| Vihtavuori N135 | <<locked>> | 82% | 54,331 psi | 85% | 2953 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 54,781 psi | 86% | 2972 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 55,579 psi | 87% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,085 psi | 85% | 3058 fps | 99.9% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 52,982 psi | 83% | 3038 fps | 97.9% |
| Vihtavuori N540 | <<locked>> | 84% | 56,536 psi | 89% | 3015 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 57,029 psi | 89% | 3120 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,143 psi | 85% | 3123 fps | 100% |
| Vihtavuori N560 | <<locked>> | 98% | 54,766 psi | 86% | 3179 fps | 96.1% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,853 psi | 84% | 3022 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 55,796 psi | 87% | 3136 fps | 99.1% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,021 psi | 74% | 3153 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 57,072 psi | 89% | 3087 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 53,795 psi | 84% | 3061 fps | 97.4% |
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 2495 | <<locked>> | 80% | 51,416 psi | 81% | 2910 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 49,559 psi | 78% | 2917 fps | 97.4% |
| Accurate 3100 | <<locked>> | 88% | 35,998 psi | 56% | 2707 fps | 95.3% |
| Accurate 4064 | <<locked>> | 80% | 48,747 psi | 76% | 2917 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 37,159 psi | 58% | 2756 fps | 97.4% |
| Accurate High Country | <<locked>> | 94% | 48,820 psi | 77% | 3087 fps | 95.3% |
| Accurate MAGPRO | <<locked>> | 98% | 53,563 psi | 84% | 3159 fps | 95.1% |
| ADI AR 2208 | <<locked>> | 80% | 46,369 psi | 73% | 2890 fps | 99.6% |
| ADI AR 2209 | <<locked>> | 90% | 44,469 psi | 70% | 2927 fps | 95% |
| ADI AR 2213 | <<locked>> | 98% | 52,301 psi | 82% | 3107 fps | 95.8% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 51,750 psi | 81% | 3123 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 90% | 44,599 psi | 70% | 2927 fps | 95.2% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,905 psi | 74% | 2917 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,980 psi | 78% | 2989 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 80% | 36,419 psi | 57% | 2772 fps | 97.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,553 psi | 65% | 2910 fps | 99.7% |
| Alliant Reloder-19 | <<locked>> | 90% | 44,092 psi | 69% | 2917 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 94% | 44,599 psi | 70% | 2972 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 82% | 28,268 psi | 44% | 2552 fps | 95.7% |
| Alliant Reloder-25 | <<locked>> | 92% | 34,490 psi | 54% | 2749 fps | 95.2% |
| Alliant Reloder-26 | 74.9 gr | 84% | 32,822 psi | 51% | 2743 fps | 95.3% |
| Bofors RP15 | <<locked>> | 98% | 46,934 psi | 74% | 3018 fps | 95.9% |
| Bofors RP3 | <<locked>> | 80% | 47,152 psi | 74% | 2927 fps | 100% |
| Bofors RP5 | <<locked>> | 94% | 44,599 psi | 70% | 2972 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,365 psi | 65% | 2785 fps | 95.4% |
| Hodgdon H380 | <<locked>> | 80% | 47,558 psi | 75% | 2936 fps | 99.2% |
| Hodgdon H414 | <<locked>> | 80% | 39,465 psi | 62% | 2812 fps | 95.4% |
| Hodgdon H4350 | <<locked>> | 82% | 45,266 psi | 71% | 2904 fps | 95.8% |
| Hodgdon H4831 | <<locked>> | 96% | 52,272 psi | 82% | 3051 fps | 95.1% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,939 psi | 53% | 2661 fps | 98.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 52,141 psi | 82% | 3041 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 41,452 psi | 65% | 2890 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,122 psi | 43% | 1742 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 52,837 psi | 83% | 3009 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,776 psi | 76% | 2930 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 80% | 51,126 psi | 80% | 2959 fps | 98.3% |
| IMR 4350 | <<locked>> | 84% | 42,351 psi | 66% | 2825 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,830 psi | 67% | 2818 fps | 96.4% |
| IMR 4831 | <<locked>> | 80% | 35,839 psi | 56% | 2710 fps | 97.1% |
| IMR 4895 | <<locked>> | 80% | 51,314 psi | 80% | 3018 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,983 psi | 85% | 3045 fps | 95.8% |
| IMR 7828 SSC | <<locked>> | 98% | 49,632 psi | 78% | 3071 fps | 95.1% |
| Lovex S060 | <<locked>> | 80% | 53,359 psi | 84% | 2972 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,820 psi | 77% | 2923 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,277 psi | 63% | 2762 fps | 97.1% |
| Lovex S070 | <<locked>> | 80% | 38,464 psi | 60% | 2736 fps | 95.3% |
| Lovex S071 | <<locked>> | 94% | 37,086 psi | 58% | 2733 fps | 95.7% |
| Norma 201 | <<locked>> | 80% | 53,200 psi | 83% | 2992 fps | 100% |
| Norma 202 | <<locked>> | 80% | 54,114 psi | 85% | 2992 fps | 100% |
| Norma 203B | <<locked>> | 80% | 49,327 psi | 77% | 2976 fps | 100% |
| Norma 204 | <<locked>> | 86% | 45,049 psi | 71% | 2917 fps | 95.1% |
| Norma MRP | 77.9 gr | 90% | 40,872 psi | 64% | 2920 fps | 95.7% |
| Norma URP | <<locked>> | 80% | 37,130 psi | 58% | 2756 fps | 97.3% |
| Ramshot Big Game | <<locked>> | 80% | 50,038 psi | 78% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 98% | 49,893 psi | 78% | 3087 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 36,071 psi | 57% | 2736 fps | 95.1% |
| Ramshot Magnum | <<locked>> | 96% | 41,118 psi | 64% | 2877 fps | 95% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,528 psi | 43% | 1781 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,587 psi | 75% | 2920 fps | 98.2% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,208 psi | 69% | 2976 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,144 psi | 58% | 2776 fps | 97.1% |
| ReloadSwiss RS 70 | 70.7 gr | 80% | 36,187 psi | 57% | 2782 fps | 96.4% |
| ReloadSwiss RS 76 | <<locked>> | 98% | 40,944 psi | 64% | 2949 fps | 95.8% |
| Rottweil R 902 | <<locked>> | 80% | 50,705 psi | 79% | 2940 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,222 psi | 69% | 2867 fps | 99.9% |
| Rottweil R 904 | <<locked>> | 92% | 49,240 psi | 77% | 2969 fps | 95.2% |
| Rottweil R 905 | <<locked>> | 90% | 43,236 psi | 68% | 2900 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 41,365 psi | 65% | 2785 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,277 psi | 63% | 2762 fps | 97.1% |
| Shooters World Precision | <<locked>> | 80% | 48,820 psi | 77% | 2923 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,464 psi | 60% | 2736 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,658 psi | 72% | 2927 fps | 99.8% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 53,156 psi | 83% | 3018 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,969 psi | 85% | 2923 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,614 psi | 71% | 2779 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,450 psi | 62% | 2703 fps | 95.6% |
| SNPE Vectan Tubal 8000 | <<locked>> | 92% | 45,803 psi | 72% | 2956 fps | 95.7% |
| Somchem S335 | <<locked>> | 80% | 53,780 psi | 84% | 2920 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,599 psi | 70% | 2867 fps | 99.8% |
| Somchem S365 | <<locked>> | 80% | 33,620 psi | 53% | 2707 fps | 99.2% |
| Somchem S385 | <<locked>> | 88% | 40,973 psi | 64% | 2818 fps | 95.2% |
| Vihtavuori N135 | <<locked>> | 80% | 50,923 psi | 80% | 2904 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 51,227 psi | 80% | 2917 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,598 psi | 67% | 2792 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,537 psi | 60% | 2756 fps | 97.7% |
| Vihtavuori N165 | <<locked>> | 94% | 43,323 psi | 68% | 2858 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 49,574 psi | 78% | 2907 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,058 psi | 60% | 2756 fps | 97.4% |
| Vihtavuori N555 | <<locked>> | 82% | 31,314 psi | 49% | 2638 fps | 95.9% |
| Vihtavuori N560 | <<locked>> | 96% | 51,111 psi | 80% | 3114 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,869 psi | 59% | 2730 fps | 99.4% |
| Winchester 760 | <<locked>> | 80% | 39,465 psi | 62% | 2812 fps | 95.4% |
| Winchester StaBALL HD | <<locked>> | 84% | 26,629 psi | 42% | 2575 fps | 95.3% |
| Winchester StaBALL Match | <<locked>> | 80% | 53,200 psi | 83% | 3025 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 94% | 46,586 psi | 73% | 2930 fps | 95.8% |
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 .300 Weath. Mag. loaded with the .308 | 156gr | Peregrine Backup (VRG-2). Alliant Reloder-26 delivers the highest muzzle velocity at 3,248 fps; across all powders the maximum-charge window runs from 1,942 fps to 3,248 fps. Accurate 3100 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 (440 MPa), the top charges use 57–90 %, leaving at least 10 % headroom. The 156.0 gr projectile in 0.308" calls for a 1:15.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Accurate MAGPRO, ADI AR 2213 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 Reloder-26, Norma MRP, ReloadSwiss RS 70 rank at the top here: for .300 Weath. Mag. with the .308 | 156gr | Peregrine Backup (VRG-2) 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.