Load Specifications
Load data in caliber 6.5 mm Rem. Mag. with .263 | 120gr | Rhino Solid Shank bullet and 96 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Reloder-26, ReloadSwiss RS 70 and Hodgdon Superformance.
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 2495 | <<locked>> | 82% | 54,592 psi | 87% | 2923 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 55,898 psi | 89% | 2999 fps | 98.9% |
| Accurate 3100ᴾ | <<locked>> | 100% | 53,490 psi | 85% | 3038 fps | 99.7% |
| Accurate 4064 | <<locked>> | 84% | 54,969 psi | 87% | 2982 fps | 100% |
| Accurate 4350 | <<locked>> | 92% | 55,651 psi | 88% | 3094 fps | 100% |
| Accurate MAGPROᴾ | <<locked>> | 100% | 55,825 psi | 88% | 3189 fps | 96.5% |
| ADI AR 2208 | <<locked>> | 86% | 54,940 psi | 87% | 3015 fps | 100% |
| ADI AR 2209 | <<locked>> | 98% | 56,753 psi | 90% | 3140 fps | 98.6% |
| ADI AR 2213ᴾ | <<locked>> | 100% | 54,621 psi | 87% | 3133 fps | 97.1% |
| Alliant Power Pro 2000-MR | <<locked>> | 82% | 54,172 psi | 86% | 3143 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 86% | 55,941 psi | 89% | 3041 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 84% | 55,970 psi | 89% | 3061 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 94% | 56,463 psi | 89% | 3153 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 88% | 54,027 psi | 86% | 3123 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 98% | 55,985 psi | 89% | 3127 fps | 98.5% |
| Alliant Reloder-22ᴾ | <<locked>> | 100% | 53,476 psi | 85% | 3133 fps | 98.3% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 50,212 psi | 80% | 3058 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 43,758 psi | 69% | 2979 fps | 99.2% |
| Alliant Reloder-26 | <<locked>> | 98% | 53,737 psi | 85% | 3202 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 48,733 psi | 77% | 3045 fps | 97.3% |
| Bofors RP3 | <<locked>> | 86% | 56,884 psi | 90% | 3058 fps | 100% |
| Bofors RP5ᴾ | <<locked>> | 100% | 53,476 psi | 85% | 3133 fps | 98.3% |
| Bofors RP7 | <<locked>> | 90% | 56,188 psi | 89% | 3041 fps | 99.1% |
| Hodgdon H380 | <<locked>> | 84% | 53,679 psi | 85% | 3022 fps | 100% |
| Hodgdon H414 | <<locked>> | 90% | 54,201 psi | 86% | 3091 fps | 99.3% |
| Hodgdon H4350 | <<locked>> | 88% | 54,056 psi | 86% | 3048 fps | 98.4% |
| Hodgdon H4831 | <<locked>> | 98% | 54,665 psi | 87% | 3074 fps | 96.5% |
| Hodgdon H4831 SC | <<locked>> | 98% | 53,359 psi | 85% | 3054 fps | 96.2% |
| Hodgdon Hybrid 100V | <<locked>> | 96% | 56,695 psi | 90% | 3068 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 82% | 54,868 psi | 87% | 3058 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 42,757 psi | 68% | 3002 fps | 96.4% |
| Hodgdon Superformance | <<locked>> | 90% | 54,389 psi | 86% | 3130 fps | 99.2% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,477 psi | 58% | 1900 fps | 100% |
| Hodgdon VARGET | <<locked>> | 82% | 55,593 psi | 88% | 3022 fps | 100% |
| IMR 4064 | <<locked>> | 84% | 54,723 psi | 87% | 2999 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 82% | 53,809 psi | 85% | 2982 fps | 99.1% |
| IMR 4350 | <<locked>> | 92% | 53,751 psi | 85% | 3022 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 88% | 54,375 psi | 86% | 3015 fps | 99.2% |
| IMR 4831 | <<locked>> | 94% | 56,115 psi | 89% | 3084 fps | 100% |
| IMR 4895 | <<locked>> | 82% | 53,954 psi | 86% | 3038 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 98% | 56,188 psi | 89% | 3064 fps | 96.9% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 51,880 psi | 82% | 3100 fps | 96.6% |
| Lovex S060 | <<locked>> | 82% | 56,188 psi | 89% | 2982 fps | 100% |
| Lovex S062 | <<locked>> | 84% | 54,897 psi | 87% | 2992 fps | 100% |
| Lovex S065 | <<locked>> | 90% | 54,389 psi | 86% | 3012 fps | 99.8% |
| Lovex S070 | <<locked>> | 92% | 55,796 psi | 88% | 3058 fps | 99.5% |
| Lovex S071ᴾ | <<locked>> | 100% | 44,556 psi | 71% | 2884 fps | 98.6% |
| Norma 201 | <<locked>> | 82% | 56,043 psi | 89% | 3002 fps | 100% |
| Norma 202 | <<locked>> | 82% | 56,913 psi | 90% | 2999 fps | 100% |
| Norma 203B | <<locked>> | 84% | 55,274 psi | 88% | 3048 fps | 100% |
| Norma 204 | <<locked>> | 92% | 54,230 psi | 86% | 3071 fps | 98% |
| Norma MRPᴾ | <<locked>> | 100% | 56,768 psi | 90% | 3219 fps | 99.6% |
| Norma URP | <<locked>> | 92% | 54,520 psi | 86% | 3081 fps | 100% |
| Ramshot Big Game | <<locked>> | 84% | 56,144 psi | 89% | 3074 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 52,170 psi | 83% | 3117 fps | 97.1% |
| Ramshot Hunter | <<locked>> | 94% | 56,942 psi | 90% | 3136 fps | 99.9% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 46,673 psi | 74% | 2986 fps | 97.6% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,970 psi | 59% | 1942 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 84% | 53,403 psi | 85% | 2999 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 86% | 53,432 psi | 85% | 3114 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 92% | 55,622 psi | 88% | 3117 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 54,099 psi | 86% | 3146 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 42,801 psi | 68% | 2999 fps | 97.6% |
| Rottweil R 902 | <<locked>> | 84% | 56,608 psi | 90% | 3002 fps | 100% |
| Rottweil R 903 | <<locked>> | 88% | 57,014 psi | 90% | 3054 fps | 100% |
| Rottweil R 904 | <<locked>> | 96% | 54,810 psi | 87% | 3048 fps | 97.2% |
| Rottweil R 905 | <<locked>> | 98% | 55,288 psi | 88% | 3110 fps | 98.5% |
| Rottweil R 907 | <<locked>> | 90% | 56,188 psi | 89% | 3041 fps | 99.1% |
| Shooters World Long Rifle | <<locked>> | 90% | 54,389 psi | 86% | 3012 fps | 99.8% |
| Shooters World Precision | <<locked>> | 84% | 54,897 psi | 87% | 2992 fps | 100% |
| Shooters World SW4350 | <<locked>> | 92% | 55,796 psi | 88% | 3058 fps | 99.5% |
| SNPE Vectan SP 11 | <<locked>> | 86% | 54,694 psi | 87% | 3058 fps | 100% |
| SNPE Vectan SP 9 | <<locked>> | 82% | 55,782 psi | 88% | 3031 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 82% | 56,782 psi | 90% | 2927 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 86% | 54,288 psi | 86% | 2881 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 54,041 psi | 86% | 2959 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 98% | 54,795 psi | 87% | 3107 fps | 98.4% |
| Somchem S335 | <<locked>> | 82% | 56,492 psi | 90% | 2923 fps | 100% |
| Somchem S355 | <<locked>> | 88% | 56,739 psi | 90% | 3048 fps | 100% |
| Somchem S361 | <<locked>> | 96% | 56,753 psi | 90% | 3041 fps | 96.8% |
| Somchem S365 | <<locked>> | 94% | 53,766 psi | 85% | 3081 fps | 100% |
| Somchem S385 | <<locked>> | 98% | 55,898 psi | 89% | 3084 fps | 99.1% |
| Vihtavuori N135 | <<locked>> | 82% | 53,650 psi | 85% | 2910 fps | 100% |
| Vihtavuori N140 | <<locked>> | 82% | 53,867 psi | 85% | 2923 fps | 100% |
| Vihtavuori N150 | <<locked>> | 88% | 54,723 psi | 87% | 2969 fps | 100% |
| Vihtavuori N160 | <<locked>> | 92% | 56,492 psi | 90% | 3068 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 51,532 psi | 82% | 2999 fps | 98.2% |
| Vihtavuori N540 | <<locked>> | 84% | 55,709 psi | 88% | 2972 fps | 100% |
| Vihtavuori N550 | <<locked>> | 92% | 55,811 psi | 88% | 3081 fps | 100% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 56,188 psi | 89% | 3136 fps | 100% |
| Vihtavuori N560ᴾ | <<locked>> | 100% | 57,087 psi | 90% | 3209 fps | 97.4% |
| Winchester 6.5 StaBALL | <<locked>> | 92% | 56,405 psi | 89% | 3035 fps | 100% |
| Winchester 760 | <<locked>> | 90% | 54,520 psi | 86% | 3094 fps | 99.3% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 45,542 psi | 72% | 3123 fps | 100% |
| Winchester StaBALL Match | <<locked>> | 82% | 55,956 psi | 89% | 3038 fps | 100% |
| Winchester Supreme 780ᴾ | <<locked>> | 100% | 56,188 psi | 89% | 3081 fps | 98.4% |
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 2495 | <<locked>> | 80% | 51,198 psi | 81% | 2874 fps | 100% |
| Accurate 2700 | <<locked>> | 80% | 48,849 psi | 77% | 2877 fps | 97.8% |
| Accurate 3100 | <<locked>> | 86% | 33,301 psi | 53% | 2635 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 48,457 psi | 77% | 2881 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 36,912 psi | 59% | 2743 fps | 98.2% |
| Accurate MAGPRO | <<locked>> | 98% | 51,967 psi | 82% | 3123 fps | 95.6% |
| ADI AR 2208 | <<locked>> | 80% | 45,847 psi | 73% | 2858 fps | 99.8% |
| ADI AR 2209 | <<locked>> | 90% | 43,598 psi | 69% | 2897 fps | 95.7% |
| ADI AR 2213 | <<locked>> | 96% | 47,659 psi | 76% | 3005 fps | 95.4% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 50,488 psi | 80% | 3081 fps | 100% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 46,369 psi | 73% | 2884 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 49,443 psi | 78% | 2953 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 35,969 psi | 57% | 2749 fps | 98.3% |
| Alliant Reloder-17 | <<locked>> | 80% | 40,828 psi | 65% | 2884 fps | 99.9% |
| Alliant Reloder-19 | <<locked>> | 90% | 43,265 psi | 69% | 2890 fps | 95.8% |
| Alliant Reloder-22 | <<locked>> | 92% | 40,741 psi | 65% | 2881 fps | 95.2% |
| Alliant Reloder-23 | <<locked>> | 80% | 26,382 psi | 42% | 2493 fps | 96% |
| Alliant Reloder-25 | <<locked>> | 90% | 31,821 psi | 50% | 2671 fps | 95.1% |
| Alliant Reloder-26 | 49.6 gr | 82% | 30,182 psi | 48% | 2671 fps | 95.4% |
| Bofors RP15 | <<locked>> | 96% | 42,873 psi | 68% | 2927 fps | 95.7% |
| Bofors RP3 | <<locked>> | 80% | 46,615 psi | 74% | 2897 fps | 100% |
| Bofors RP5 | <<locked>> | 92% | 40,741 psi | 65% | 2881 fps | 95.2% |
| Bofors RP7 | <<locked>> | 80% | 41,104 psi | 65% | 2759 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 80% | 47,050 psi | 75% | 2907 fps | 99.5% |
| Hodgdon H414 | <<locked>> | 80% | 38,957 psi | 62% | 2792 fps | 96.3% |
| Hodgdon H4350 | <<locked>> | 80% | 41,843 psi | 66% | 2812 fps | 95.7% |
| Hodgdon H4831 | <<locked>> | 96% | 50,923 psi | 81% | 3009 fps | 95.6% |
| Hodgdon H4831 SC | <<locked>> | 96% | 50,009 psi | 79% | 2992 fps | 95.4% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 33,475 psi | 53% | 2638 fps | 98.8% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 51,198 psi | 81% | 3002 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 98% | 40,161 psi | 64% | 2940 fps | 95.3% |
| Hodgdon Superformance | 49.9 gr | 80% | 37,913 psi | 60% | 2799 fps | 95.5% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,253 psi | 43% | 1699 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 51,953 psi | 82% | 2963 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 48,225 psi | 76% | 2894 fps | 100% |
| IMR 4166 Enduron | <<locked>> | 80% | 50,314 psi | 80% | 2920 fps | 98.7% |
| IMR 4350 | <<locked>> | 82% | 39,204 psi | 62% | 2740 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 42,525 psi | 67% | 2792 fps | 97.1% |
| IMR 4831 | <<locked>> | 80% | 35,491 psi | 56% | 2690 fps | 97.9% |
| IMR 4895 | <<locked>> | 80% | 50,705 psi | 80% | 2982 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 94% | 49,647 psi | 79% | 2949 fps | 95.5% |
| IMR 7828 SSC | <<locked>> | 98% | 48,617 psi | 77% | 3038 fps | 95.8% |
| Lovex S060 | <<locked>> | 80% | 52,895 psi | 84% | 2933 fps | 100% |
| Lovex S062 | <<locked>> | 80% | 48,486 psi | 77% | 2890 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 39,929 psi | 63% | 2740 fps | 97.8% |
| Lovex S070 | <<locked>> | 80% | 38,189 psi | 61% | 2717 fps | 96.2% |
| Lovex S071 | <<locked>> | 90% | 32,300 psi | 51% | 2608 fps | 95% |
| Norma 201 | <<locked>> | 80% | 52,663 psi | 83% | 2949 fps | 100% |
| Norma 202 | <<locked>> | 80% | 53,447 psi | 85% | 2949 fps | 100% |
| Norma 203B | <<locked>> | 80% | 48,791 psi | 77% | 2940 fps | 100% |
| Norma 204 | <<locked>> | 84% | 41,423 psi | 66% | 2828 fps | 95% |
| Norma MRP | <<locked>> | 88% | 37,275 psi | 59% | 2831 fps | 95.6% |
| Norma URP | <<locked>> | 80% | 36,724 psi | 58% | 2736 fps | 98.1% |
| Ramshot Big Game | <<locked>> | 80% | 48,994 psi | 78% | 2959 fps | 100% |
| Ramshot Grand | <<locked>> | 96% | 45,295 psi | 72% | 2979 fps | 95.2% |
| Ramshot Hunter | <<locked>> | 80% | 35,694 psi | 57% | 2720 fps | 96.1% |
| Ramshot Magnum | <<locked>> | 96% | 40,292 psi | 64% | 2851 fps | 95.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 44% | 1742 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 46,978 psi | 74% | 2887 fps | 98.6% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 43,366 psi | 69% | 2940 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 36,535 psi | 58% | 2756 fps | 97.9% |
| ReloadSwiss RS 70 | 47.9 gr | 80% | 35,607 psi | 56% | 2762 fps | 97.2% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 37,231 psi | 59% | 2854 fps | 95.3% |
| Rottweil R 902 | <<locked>> | 80% | 50,227 psi | 80% | 2900 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 43,830 psi | 69% | 2838 fps | 100% |
| Rottweil R 904 | <<locked>> | 90% | 45,295 psi | 72% | 2874 fps | 95% |
| Rottweil R 905 | <<locked>> | 90% | 42,279 psi | 67% | 2871 fps | 95.7% |
| Rottweil R 907 | <<locked>> | 80% | 41,104 psi | 65% | 2759 fps | 96.2% |
| Shooters World Long Rifle | <<locked>> | 80% | 39,929 psi | 63% | 2740 fps | 97.8% |
| Shooters World Precision | <<locked>> | 80% | 48,486 psi | 77% | 2890 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 38,189 psi | 61% | 2717 fps | 96.2% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 45,078 psi | 71% | 2894 fps | 99.9% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 52,475 psi | 83% | 2982 fps | 100% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 53,330 psi | 85% | 2874 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 45,049 psi | 71% | 2740 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,160 psi | 62% | 2680 fps | 96.3% |
| SNPE Vectan Tubal 8000 | <<locked>> | 90% | 41,872 psi | 66% | 2864 fps | 95.6% |
| Somchem S335 | <<locked>> | 80% | 53,185 psi | 84% | 2874 fps | 100% |
| Somchem S355 | <<locked>> | 80% | 44,150 psi | 70% | 2838 fps | 100% |
| Somchem S361 | <<locked>> | 92% | 49,632 psi | 79% | 2920 fps | 95.2% |
| Somchem S365 | <<locked>> | 80% | 33,083 psi | 52% | 2690 fps | 99.6% |
| Somchem S385 | <<locked>> | 86% | 37,739 psi | 60% | 2736 fps | 95.1% |
| Vihtavuori N135 | <<locked>> | 80% | 50,256 psi | 80% | 2861 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 50,589 psi | 80% | 2877 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 42,163 psi | 67% | 2762 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 38,130 psi | 60% | 2733 fps | 98.4% |
| Vihtavuori N165 | <<locked>> | 92% | 39,537 psi | 63% | 2766 fps | 95.3% |
| Vihtavuori N540 | <<locked>> | 80% | 48,994 psi | 78% | 2871 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 37,681 psi | 60% | 2740 fps | 98.1% |
| Vihtavuori N555 | <<locked>> | 80% | 28,935 psi | 46% | 2572 fps | 96.1% |
| Vihtavuori N560 | <<locked>> | 96% | 49,574 psi | 79% | 3077 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 37,275 psi | 59% | 2703 fps | 99.7% |
| Winchester 760 | <<locked>> | 80% | 38,957 psi | 62% | 2792 fps | 96.3% |
| Winchester StaBALL HD | <<locked>> | 82% | 24,874 psi | 39% | 2516 fps | 95.6% |
| Winchester StaBALL Match | <<locked>> | 80% | 52,301 psi | 83% | 2986 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 92% | 42,453 psi | 67% | 2835 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 96 powders for 6.5 mm Rem. Mag. loaded with the .263 | 120gr | Rhino Solid Shank. Norma MRP delivers the highest muzzle velocity at 3,219 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,219 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 58–90 %, leaving at least 10 % headroom. The 120.0 gr projectile in 0.263" calls for a 1:11.0 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, ReloadSwiss RS 70, Hodgdon Superformance rank at the top here: for 6.5 mm Rem. Mag. with the .263 | 120gr | Rhino Solid Shank 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.