Load Specifications
Load data in caliber 6.5 mm Rem. Mag. with .264 | 100gr | Fox Classic Hunter bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and ReloadSwiss RS 60.
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: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 82% | 54,317 psi | 86% | 3146 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 56,942 psi | 90% | 3222 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,781 psi | 87% | 3235 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,782 psi | 88% | 3219 fps | 97.2% |
| Accurate 3100ᴾ | <<locked>> | 100% | 44,512 psi | 71% | 3104 fps | 96.7% |
| Accurate 4064 | <<locked>> | 90% | 57,014 psi | 90% | 3274 fps | 100% |
| Accurate 4350 | <<locked>> | 96% | 53,577 psi | 85% | 3307 fps | 99.5% |
| ADI AR 2206H | <<locked>> | 86% | 57,043 psi | 90% | 3314 fps | 100% |
| ADI AR 2208 | <<locked>> | 90% | 54,534 psi | 86% | 3251 fps | 99.8% |
| ADI Benchmark 8208 | <<locked>> | 84% | 55,927 psi | 89% | 3258 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,811 psi | 90% | 3225 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 86% | 53,272 psi | 84% | 3379 fps | 99.8% |
| Alliant Reloder- TS 15.5 | <<locked>> | 90% | 54,926 psi | 87% | 3281 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 55,332 psi | 88% | 3304 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 98% | 54,592 psi | 87% | 3373 fps | 99.8% |
| Alliant Reloder-17 | <<locked>> | 94% | 56,217 psi | 89% | 3415 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 41,887 psi | 66% | 3130 fps | 99.2% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 47,514 psi | 75% | 3323 fps | 98.8% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 57,087 psi | 90% | 3327 fps | 99.8% |
| Bofors RP3 | <<locked>> | 90% | 55,492 psi | 88% | 3294 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 55,680 psi | 88% | 3264 fps | 97.4% |
| Hodgdon Benchmark | <<locked>> | 82% | 54,070 psi | 86% | 3182 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 55,521 psi | 88% | 3284 fps | 100% |
| Hodgdon H380 | <<locked>> | 90% | 56,492 psi | 90% | 3310 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 96% | 56,391 psi | 89% | 3366 fps | 98.2% |
| Hodgdon H4350 | <<locked>> | 94% | 56,782 psi | 90% | 3323 fps | 97% |
| Hodgdon H4895 | <<locked>> | 84% | 54,172 psi | 86% | 3268 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 54,505 psi | 86% | 3287 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 86% | 53,722 psi | 85% | 3301 fps | 100% |
| Hodgdon Superformance | <<locked>> | 94% | 53,287 psi | 84% | 3337 fps | 97.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,563 psi | 56% | 2054 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 55,187 psi | 87% | 3268 fps | 100% |
| IMR 3031 | <<locked>> | 84% | 54,157 psi | 86% | 3251 fps | 100% |
| IMR 4064 | <<locked>> | 88% | 54,186 psi | 86% | 3238 fps | 99.8% |
| IMR 4166 Enduron | <<locked>> | 86% | 53,708 psi | 85% | 3205 fps | 97.5% |
| IMR 4350 | <<locked>> | 98% | 55,869 psi | 89% | 3284 fps | 97.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 53,911 psi | 85% | 3235 fps | 97.5% |
| IMR 4831 | <<locked>> | 98% | 54,288 psi | 86% | 3301 fps | 99.6% |
| IMR 4895 | <<locked>> | 88% | 56,782 psi | 90% | 3337 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 55,927 psi | 89% | 3258 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 57,043 psi | 90% | 3281 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 56,260 psi | 89% | 3228 fps | 100% |
| Lovex S062 | <<locked>> | 88% | 54,128 psi | 86% | 3232 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 57,000 psi | 90% | 3291 fps | 99.1% |
| Lovex S070 | <<locked>> | 96% | 54,708 psi | 87% | 3271 fps | 98% |
| Norma 201 | <<locked>> | 86% | 55,550 psi | 88% | 3248 fps | 100% |
| Norma 202 | <<locked>> | 86% | 56,289 psi | 89% | 3251 fps | 100% |
| Norma 203B | <<locked>> | 88% | 54,563 psi | 86% | 3287 fps | 99.9% |
| Norma 204 | <<locked>> | 98% | 56,855 psi | 90% | 3343 fps | 96.5% |
| Norma MRPᴾ | <<locked>> | 100% | 47,268 psi | 75% | 3274 fps | 96.2% |
| Norma URP | <<locked>> | 98% | 56,420 psi | 89% | 3360 fps | 99.7% |
| Ramshot Big Game | <<locked>> | 88% | 55,361 psi | 88% | 3314 fps | 100% |
| Ramshot Hunter | <<locked>> | 98% | 55,100 psi | 87% | 3346 fps | 98.7% |
| Ramshot TAC | <<locked>> | 84% | 56,188 psi | 89% | 3274 fps | 99.1% |
| Ramshot Wild Boar | <<locked>> | 84% | 56,086 psi | 89% | 3294 fps | 100% |
| Ramshot X-Terminator | <<locked>> | 82% | 56,594 psi | 90% | 3251 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,172 psi | 57% | 2103 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 56,637 psi | 90% | 3287 fps | 98.6% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 55,825 psi | 88% | 3376 fps | 99.9% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 55,680 psi | 88% | 3415 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 96% | 53,548 psi | 85% | 3333 fps | 99.4% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 56,681 psi | 90% | 3428 fps | 99.6% |
| Rottweil R 901 | <<locked>> | 84% | 56,376 psi | 89% | 3228 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 56,101 psi | 89% | 3248 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 55,637 psi | 88% | 3287 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 55,680 psi | 88% | 3264 fps | 97.4% |
| Shooters World Long Rifle | <<locked>> | 96% | 57,000 psi | 90% | 3291 fps | 99.1% |
| Shooters World Match Rifle | <<locked>> | 86% | 57,043 psi | 90% | 3281 fps | 100% |
| Shooters World Precision | <<locked>> | 88% | 54,128 psi | 86% | 3232 fps | 100% |
| Shooters World SW4350 | <<locked>> | 96% | 54,708 psi | 87% | 3271 fps | 98% |
| SNPE Vectan SP 11 | <<locked>> | 90% | 53,563 psi | 85% | 3291 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 84% | 54,897 psi | 87% | 3251 fps | 99.3% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 55,390 psi | 88% | 3278 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 57,014 psi | 90% | 3182 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 90% | 54,114 psi | 86% | 3127 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 53,490 psi | 85% | 3173 fps | 97.5% |
| Somchem S335 | <<locked>> | 86% | 56,318 psi | 89% | 3173 fps | 100% |
| Somchem S341 | <<locked>> | 84% | 54,302 psi | 86% | 3238 fps | 99.9% |
| Somchem S355 | <<locked>> | 92% | 55,680 psi | 88% | 3284 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 54,708 psi | 87% | 3360 fps | 100% |
| Somchem S385ᴾ | <<locked>> | 100% | 50,647 psi | 80% | 3222 fps | 96.5% |
| Vihtavuori N130 | <<locked>> | 82% | 56,565 psi | 90% | 3136 fps | 100% |
| Vihtavuori N133 | <<locked>> | 84% | 53,766 psi | 85% | 3110 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,970 psi | 89% | 3205 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 57,014 psi | 90% | 3225 fps | 100% |
| Vihtavuori N150 | <<locked>> | 92% | 53,824 psi | 85% | 3205 fps | 100% |
| Vihtavuori N160 | <<locked>> | 96% | 54,969 psi | 87% | 3287 fps | 99.5% |
| Vihtavuori N530 | <<locked>> | 84% | 56,449 psi | 89% | 3255 fps | 100% |
| Vihtavuori N540 | <<locked>> | 88% | 55,274 psi | 88% | 3222 fps | 100% |
| Vihtavuori N550 | <<locked>> | 96% | 54,244 psi | 86% | 3297 fps | 99.4% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 46,615 psi | 74% | 3225 fps | 99.2% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 55,390 psi | 88% | 3261 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 56,434 psi | 89% | 3307 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 56,681 psi | 90% | 3373 fps | 98.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 37,840 psi | 60% | 3146 fps | 99.4% |
| Winchester StaBALL Match | <<locked>> | 86% | 55,579 psi | 88% | 3287 fps | 100% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 26"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 80% | 50,908 psi | 81% | 3091 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,903 psi | 70% | 3009 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 51,300 psi | 81% | 3182 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,907 psi | 78% | 3094 fps | 95.7% |
| Accurate 3100 | <<locked>> | 98% | 41,234 psi | 65% | 3035 fps | 95.8% |
| Accurate 4064 | <<locked>> | 80% | 41,481 psi | 66% | 3002 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 35,302 psi | 56% | 2923 fps | 95.6% |
| ADI AR 2206H | <<locked>> | 80% | 46,978 psi | 74% | 3130 fps | 99.4% |
| ADI AR 2208 | <<locked>> | 80% | 39,885 psi | 63% | 2959 fps | 97.6% |
| ADI Benchmark 8208 | <<locked>> | 80% | 49,023 psi | 78% | 3136 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 49,879 psi | 79% | 3123 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 43,033 psi | 68% | 3166 fps | 98.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,798 psi | 63% | 2986 fps | 98.9% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,656 psi | 68% | 3058 fps | 98.4% |
| Alliant Reloder-16 | <<locked>> | 84% | 35,012 psi | 55% | 2933 fps | 95.6% |
| Alliant Reloder-17 | <<locked>> | 80% | 34,534 psi | 55% | 2949 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 90% | 30,603 psi | 49% | 2822 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 92% | 35,534 psi | 56% | 3025 fps | 95% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 46,499 psi | 74% | 3136 fps | 98.7% |
| Bofors RP3 | <<locked>> | 80% | 39,639 psi | 63% | 2992 fps | 99% |
| Bofors RP7 | <<locked>> | 88% | 45,977 psi | 73% | 3081 fps | 95.2% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,836 psi | 81% | 3127 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 48,327 psi | 77% | 3163 fps | 100% |
| Hodgdon H380 | <<locked>> | 80% | 40,408 psi | 64% | 2995 fps | 96.7% |
| Hodgdon H414 | <<locked>> | 88% | 43,192 psi | 68% | 3107 fps | 95.2% |
| Hodgdon H4350 | <<locked>> | 90% | 49,748 psi | 79% | 3196 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 47,413 psi | 75% | 3143 fps | 99.7% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 30,342 psi | 48% | 2759 fps | 95.6% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 43,700 psi | 69% | 3110 fps | 99.5% |
| Hodgdon Superformance | 55.4 gr | 90% | 45,992 psi | 73% | 3189 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,571 psi | 42% | 1841 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 45,542 psi | 72% | 3091 fps | 99.5% |
| IMR 3031 | <<locked>> | 80% | 47,297 psi | 75% | 3136 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,887 psi | 66% | 2995 fps | 98.3% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,556 psi | 71% | 3025 fps | 95.4% |
| IMR 4350 | <<locked>> | 92% | 46,224 psi | 73% | 3104 fps | 95.3% |
| IMR 4451 Enduron | <<locked>> | 86% | 44,744 psi | 71% | 3058 fps | 95.4% |
| IMR 4831 | <<locked>> | 84% | 34,142 psi | 54% | 2874 fps | 95.3% |
| IMR 4895 | <<locked>> | 80% | 43,671 psi | 69% | 3091 fps | 99% |
| IMR 8208 XBR | <<locked>> | 80% | 49,023 psi | 78% | 3136 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 46,601 psi | 74% | 3110 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,673 psi | 74% | 3058 fps | 99.4% |
| Lovex S062 | <<locked>> | 80% | 41,930 psi | 66% | 3005 fps | 99.5% |
| Lovex S065 | <<locked>> | 84% | 39,334 psi | 62% | 2940 fps | 95.4% |
| Lovex S070 | <<locked>> | 88% | 42,453 psi | 67% | 3031 fps | 95.2% |
| Norma 201 | <<locked>> | 80% | 46,151 psi | 73% | 3081 fps | 99.8% |
| Norma 202 | <<locked>> | 80% | 46,427 psi | 74% | 3084 fps | 100% |
| Norma 203B | <<locked>> | 80% | 42,018 psi | 67% | 3045 fps | 98.7% |
| Norma 204 | <<locked>> | 96% | 53,243 psi | 84% | 3281 fps | 95.7% |
| Norma MRP | <<locked>> | 98% | 44,048 psi | 70% | 3202 fps | 95.2% |
| Norma URP | <<locked>> | 84% | 35,447 psi | 56% | 2923 fps | 95.5% |
| Ramshot Big Game | <<locked>> | 80% | 41,829 psi | 66% | 3058 fps | 98.5% |
| Ramshot Hunter | <<locked>> | 88% | 39,508 psi | 63% | 3028 fps | 95% |
| Ramshot TAC | <<locked>> | 80% | 49,168 psi | 78% | 3146 fps | 98.1% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,936 psi | 78% | 3169 fps | 99.6% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,953 psi | 84% | 3192 fps | 99.8% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 43% | 1883 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 40,683 psi | 64% | 2972 fps | 95% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 45,382 psi | 72% | 3182 fps | 98.8% |
| ReloadSwiss RS 60 | 46.6 gr | 80% | 36,753 psi | 58% | 3025 fps | 99.7% |
| ReloadSwiss RS 62 | <<locked>> | 84% | 34,969 psi | 55% | 2936 fps | 95.1% |
| ReloadSwiss RS 70 | 50.9 gr | 86% | 37,405 psi | 59% | 3009 fps | 95.2% |
| Rottweil R 901 | <<locked>> | 80% | 50,009 psi | 79% | 3123 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,729 psi | 69% | 3022 fps | 99.6% |
| Rottweil R 903 | <<locked>> | 80% | 37,391 psi | 59% | 2930 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 88% | 45,977 psi | 73% | 3081 fps | 95.2% |
| Shooters World Long Rifle | <<locked>> | 84% | 39,334 psi | 62% | 2940 fps | 95.4% |
| Shooters World Match Rifle | <<locked>> | 80% | 46,601 psi | 74% | 3110 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,930 psi | 66% | 3005 fps | 99.5% |
| Shooters World SW4350 | <<locked>> | 88% | 42,453 psi | 67% | 3031 fps | 95.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 38,348 psi | 61% | 2982 fps | 97.8% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 47,732 psi | 76% | 3120 fps | 98.3% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 45,614 psi | 72% | 3097 fps | 99.2% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 47,152 psi | 75% | 3022 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,407 psi | 62% | 2867 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 44,077 psi | 70% | 2995 fps | 95.4% |
| Somchem S335 | <<locked>> | 80% | 47,007 psi | 75% | 3025 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 47,311 psi | 75% | 3114 fps | 99.4% |
| Somchem S355 | <<locked>> | 80% | 38,072 psi | 60% | 2936 fps | 98.2% |
| Somchem S365 | <<locked>> | 80% | 27,746 psi | 44% | 2736 fps | 95.9% |
| Somchem S385 | <<locked>> | 98% | 47,181 psi | 75% | 3156 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 53,084 psi | 84% | 3087 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,543 psi | 75% | 3012 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,439 psi | 69% | 3002 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 44,164 psi | 70% | 3012 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 36,318 psi | 58% | 2864 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 82% | 34,621 psi | 55% | 2864 fps | 95.1% |
| Vihtavuori N530 | <<locked>> | 80% | 49,298 psi | 78% | 3136 fps | 100% |
| Vihtavuori N540 | <<locked>> | 80% | 42,511 psi | 67% | 2995 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 36,477 psi | 58% | 2927 fps | 95.7% |
| Vihtavuori N555 | <<locked>> | 90% | 33,127 psi | 53% | 2910 fps | 95.6% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 32,097 psi | 51% | 2769 fps | 96.6% |
| Winchester 748 | <<locked>> | 80% | 49,327 psi | 78% | 3189 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 43,192 psi | 68% | 3107 fps | 95.2% |
| Winchester StaBALL HD | <<locked>> | 92% | 29,037 psi | 46% | 2844 fps | 95% |
| Winchester StaBALL Match | <<locked>> | 80% | 45,397 psi | 72% | 3104 fps | 99.5% |
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 96 powders for 6.5 mm Rem. Mag. loaded with the .264 | 100gr | Fox Classic Hunter. ReloadSwiss RS 70 delivers the highest muzzle velocity at 3,428 fps; across all powders the maximum-charge window runs from 2,054 fps to 3,428 fps. Accurate 3100 gives the best case fill at 100 %, and 96 of the 96 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (435 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 100.0 gr projectile in 0.264" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-23, Alliant Reloder-26 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 70, Hodgdon Superformance, ReloadSwiss RS 60 rank at the top here: for 6.5 mm Rem. Mag. with the .264 | 100gr | Fox Classic 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.