Load Specifications
Load data in caliber 6.5 x 68 with .264 | 135gr | Peregrine Glider GRM bullet and 73 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Hodgdon Retumbo, ReloadSwiss RS 76 and Accurate High Country.
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: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 92% | 57,348 psi | 90% | 2992 fps | 100% |
| Accurate 4350 | <<locked>> | 82% | 54,418 psi | 85% | 2963 fps | 100% |
| Accurate High Country | <<locked>> | 88% | 55,477 psi | 87% | 3100 fps | 99.6% |
| Accurate MAGPRO | <<locked>> | 90% | 56,275 psi | 88% | 3104 fps | 99% |
| ADI AR 2209 | <<locked>> | 88% | 55,593 psi | 87% | 3035 fps | 99.9% |
| ADI AR 2213 | <<locked>> | 92% | 57,479 psi | 90% | 3107 fps | 99.7% |
| ADI AR 2217ᴾ | <<locked>> | 100% | 55,521 psi | 87% | 3071 fps | 99.8% |
| ADI AR 2225ᴾ | <<locked>> | 100% | 49,806 psi | 78% | 3028 fps | 100% |
| Alliant Power Pro Varmint | <<locked>> | 88% | 55,695 psi | 87% | 3028 fps | 99.9% |
| Alliant Reloder-16 | <<locked>> | 84% | 55,666 psi | 87% | 3022 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 88% | 55,013 psi | 86% | 3022 fps | 99.9% |
| Alliant Reloder-22 | <<locked>> | 92% | 57,638 psi | 90% | 3097 fps | 100% |
| Alliant Reloder-23 | <<locked>> | 92% | 55,317 psi | 87% | 3002 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 96% | 55,114 psi | 86% | 3071 fps | 100% |
| Alliant Reloder-26 | <<locked>> | 88% | 55,854 psi | 88% | 3094 fps | 100% |
| Alliant Reloder-33ᴾ | <<locked>> | 100% | 52,431 psi | 82% | 3091 fps | 97% |
| Baschieri & Pellagri 109 | <<locked>> | 92% | 54,897 psi | 86% | 3005 fps | 97.5% |
| Bofors RP15 | <<locked>> | 94% | 56,753 psi | 89% | 3084 fps | 100% |
| Bofors RP30 | <<locked>> | 98% | 54,911 psi | 86% | 3081 fps | 99.7% |
| Bofors RP5 | <<locked>> | 92% | 57,638 psi | 90% | 3097 fps | 100% |
| Bofors RP7 | <<locked>> | 82% | 56,086 psi | 88% | 2963 fps | 100% |
| Hodgdon H1000 | <<locked>> | 98% | 57,159 psi | 90% | 3097 fps | 100% |
| Hodgdon H414 | <<locked>> | 82% | 56,173 psi | 88% | 3025 fps | 100% |
| Hodgdon H4831 | <<locked>> | 90% | 56,927 psi | 89% | 3038 fps | 99.3% |
| Hodgdon H4831 SC | <<locked>> | 90% | 55,840 psi | 88% | 3018 fps | 99.2% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 55,869 psi | 88% | 2940 fps | 100% |
| Hodgdon Retumbo | <<locked>> | 96% | 53,925 psi | 85% | 3153 fps | 100% |
| Hodgdon Superformance | <<locked>> | 82% | 56,710 psi | 89% | 3061 fps | 100% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 37,275 psi | 58% | 1900 fps | 100% |
| IMR 4350 | <<locked>> | 84% | 54,563 psi | 86% | 2953 fps | 100% |
| IMR 4451 Enduron | <<locked>> | 82% | 57,638 psi | 90% | 2989 fps | 100% |
| IMR 4831 | <<locked>> | 84% | 54,911 psi | 86% | 2956 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 90% | 57,609 psi | 90% | 3015 fps | 99.4% |
| IMR 7828 SSC | <<locked>> | 92% | 55,593 psi | 87% | 3084 fps | 99.6% |
| IMR 8133 Enduronᴾ | <<locked>> | 100% | 45,165 psi | 71% | 2930 fps | 98.4% |
| Lovex S065 | <<locked>> | 82% | 54,781 psi | 86% | 2930 fps | 100% |
| Lovex S070 | <<locked>> | 84% | 56,623 psi | 89% | 2982 fps | 100% |
| Lovex S071 | <<locked>> | 96% | 55,129 psi | 86% | 2963 fps | 100% |
| Norma 204 | <<locked>> | 84% | 55,869 psi | 88% | 3015 fps | 99.9% |
| Norma 217ᴾ | <<locked>> | 100% | 45,788 psi | 72% | 2956 fps | 99.8% |
| Norma MRP | <<locked>> | 90% | 57,595 psi | 90% | 3117 fps | 100% |
| Norma URP | <<locked>> | 84% | 56,463 psi | 88% | 2999 fps | 100% |
| Ramshot Grand | <<locked>> | 92% | 56,507 psi | 89% | 3107 fps | 99.8% |
| Ramshot Hunter | <<locked>> | 84% | 55,608 psi | 87% | 3012 fps | 100% |
| Ramshot Magnum | <<locked>> | 94% | 54,882 psi | 86% | 3035 fps | 100% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 38,247 psi | 60% | 1946 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 82% | 54,636 psi | 86% | 2986 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 84% | 57,334 psi | 90% | 3077 fps | 100% |
| ReloadSwiss RS 76 | <<locked>> | 96% | 54,636 psi | 86% | 3146 fps | 100% |
| ReloadSwiss RS 80 | <<locked>> | 98% | 53,853 psi | 84% | 3100 fps | 98.9% |
| Rottweil R 904 | <<locked>> | 88% | 56,507 psi | 89% | 3005 fps | 99.6% |
| Rottweil R 905 | <<locked>> | 88% | 54,766 psi | 86% | 3012 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 82% | 56,086 psi | 88% | 2963 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 82% | 54,781 psi | 86% | 2930 fps | 100% |
| Shooters World SW4350 | <<locked>> | 84% | 56,623 psi | 89% | 2982 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 84% | 57,566 psi | 90% | 2936 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 54,360 psi | 85% | 3009 fps | 99.9% |
| Somchem S361 | <<locked>> | 86% | 54,099 psi | 85% | 2933 fps | 98.9% |
| Somchem S365 | <<locked>> | 86% | 57,551 psi | 90% | 3002 fps | 100% |
| Somchem S385 | <<locked>> | 88% | 55,013 psi | 86% | 2979 fps | 100% |
| Vihtavuori N160 | <<locked>> | 82% | 54,607 psi | 86% | 2936 fps | 100% |
| Vihtavuori N165 | <<locked>> | 92% | 54,853 psi | 86% | 2966 fps | 100% |
| Vihtavuori N170 | <<locked>> | 98% | 57,406 psi | 90% | 3035 fps | 96.3% |
| Vihtavuori N550 | <<locked>> | 84% | 57,290 psi | 90% | 2995 fps | 100% |
| Vihtavuori N555 | <<locked>> | 90% | 57,319 psi | 90% | 3031 fps | 100% |
| Vihtavuori N560 | <<locked>> | 90% | 57,203 psi | 90% | 3117 fps | 99.5% |
| Vihtavuori N565 | <<locked>> | 96% | 57,537 psi | 90% | 3100 fps | 99.6% |
| Vihtavuori N568 | <<locked>> | 98% | 54,795 psi | 86% | 3107 fps | 98.7% |
| Vihtavuori N570ᴾ | <<locked>> | 100% | 55,564 psi | 87% | 3163 fps | 97.3% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 53,983 psi | 85% | 2890 fps | 100% |
| Winchester 760 | <<locked>> | 82% | 56,173 psi | 88% | 3025 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 92% | 54,302 psi | 85% | 3091 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 90% | 54,824 psi | 86% | 2976 fps | 99.9% |
Recommended = one of the top powders for this cartridge and bullet combination.
Start Load - Barrel Length: 25.6"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 3100 | <<locked>> | 80% | 37,942 psi | 59% | 2651 fps | 99.2% |
| Accurate 4350 | <<locked>> | 80% | 50,749 psi | 80% | 2904 fps | 100% |
| Accurate High Country | 57.8 gr | 80% | 41,640 psi | 65% | 2835 fps | 97.2% |
| Accurate MAGPRO | <<locked>> | 80% | 39,291 psi | 62% | 2769 fps | 95.1% |
| ADI AR 2209 | <<locked>> | 80% | 42,351 psi | 66% | 2792 fps | 98.3% |
| ADI AR 2213 | <<locked>> | 80% | 37,724 psi | 59% | 2717 fps | 95.7% |
| ADI AR 2217 | <<locked>> | 88% | 36,680 psi | 57% | 2690 fps | 95.7% |
| ADI AR 2225 | <<locked>> | 84% | 28,950 psi | 45% | 2520 fps | 95.3% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 42,714 psi | 67% | 2792 fps | 98.3% |
| Alliant Reloder-16 | <<locked>> | 80% | 48,704 psi | 76% | 2910 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 80% | 42,322 psi | 66% | 2782 fps | 98.3% |
| Alliant Reloder-22 | <<locked>> | 80% | 38,145 psi | 60% | 2726 fps | 97.3% |
| Alliant Reloder-23 | <<locked>> | 80% | 36,840 psi | 58% | 2677 fps | 100% |
| Alliant Reloder-25 | <<locked>> | 80% | 31,734 psi | 50% | 2595 fps | 98.4% |
| Alliant Reloder-26 | <<locked>> | 80% | 40,988 psi | 64% | 2835 fps | 100% |
| Alliant Reloder-33 | <<locked>> | 98% | 48,559 psi | 76% | 3015 fps | 96% |
| Baschieri & Pellagri 109 | <<locked>> | 86% | 45,353 psi | 71% | 2825 fps | 95.1% |
| Bofors RP15 | <<locked>> | 80% | 35,433 psi | 56% | 2657 fps | 96.2% |
| Bofors RP30 | <<locked>> | 86% | 35,969 psi | 56% | 2700 fps | 95.8% |
| Bofors RP5 | <<locked>> | 80% | 38,145 psi | 60% | 2726 fps | 97.3% |
| Bofors RP7 | <<locked>> | 80% | 52,765 psi | 83% | 2910 fps | 100% |
| Hodgdon H1000 | <<locked>> | 84% | 34,809 psi | 55% | 2644 fps | 95.6% |
| Hodgdon H414 | <<locked>> | 80% | 52,330 psi | 82% | 2963 fps | 100% |
| Hodgdon H4831 | <<locked>> | 80% | 40,364 psi | 63% | 2726 fps | 96% |
| Hodgdon H4831 SC | <<locked>> | 80% | 39,581 psi | 62% | 2710 fps | 95.7% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 45,876 psi | 72% | 2785 fps | 100% |
| Hodgdon Retumbo | 57.1 gr | 82% | 33,199 psi | 52% | 2687 fps | 96.2% |
| Hodgdon Superformance | <<locked>> | 80% | 52,721 psi | 83% | 2999 fps | 100% |
| Hodgdon TrailBoss | <<locked>> | 80% | 28,021 psi | 44% | 1699 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 48,124 psi | 75% | 2841 fps | 99.7% |
| IMR 4451 Enduron | <<locked>> | 80% | 54,041 psi | 85% | 2930 fps | 100% |
| IMR 4831 | <<locked>> | 80% | 47,979 psi | 75% | 2844 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 80% | 41,785 psi | 65% | 2726 fps | 96.6% |
| IMR 7828 SSC | <<locked>> | 80% | 36,318 psi | 57% | 2694 fps | 95.3% |
| IMR 8133 Enduron | <<locked>> | 94% | 36,767 psi | 58% | 2743 fps | 95.9% |
| Lovex S065 | <<locked>> | 80% | 51,547 psi | 81% | 2877 fps | 100% |
| Lovex S070 | <<locked>> | 80% | 49,951 psi | 78% | 2874 fps | 100% |
| Lovex S071 | <<locked>> | 80% | 32,561 psi | 51% | 2523 fps | 97.9% |
| Norma 204 | <<locked>> | 80% | 48,559 psi | 76% | 2890 fps | 99.2% |
| Norma 217 | <<locked>> | 88% | 29,878 psi | 47% | 2575 fps | 95.2% |
| Norma MRP | <<locked>> | 80% | 40,205 psi | 63% | 2799 fps | 99% |
| Norma URP | <<locked>> | 80% | 49,574 psi | 78% | 2890 fps | 100% |
| Ramshot Grand | <<locked>> | 80% | 35,984 psi | 56% | 2700 fps | 95.6% |
| Ramshot Hunter | <<locked>> | 80% | 48,501 psi | 76% | 2894 fps | 100% |
| Ramshot Magnum | <<locked>> | 80% | 32,126 psi | 50% | 2575 fps | 96.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 28,572 psi | 45% | 1739 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 50,836 psi | 80% | 2930 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 80% | 49,400 psi | 77% | 2956 fps | 100% |
| ReloadSwiss RS 76 | 59.6 gr | 80% | 29,950 psi | 47% | 2585 fps | 95.8% |
| ReloadSwiss RS 80 | <<locked>> | 90% | 39,392 psi | 62% | 2815 fps | 95.4% |
| Rottweil R 904 | <<locked>> | 80% | 43,424 psi | 68% | 2766 fps | 97.6% |
| Rottweil R 905 | <<locked>> | 80% | 41,756 psi | 65% | 2772 fps | 98.3% |
| Rottweil R 907 | <<locked>> | 80% | 52,765 psi | 83% | 2910 fps | 100% |
| Shooters World Long Rifle | <<locked>> | 80% | 51,547 psi | 81% | 2877 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 49,951 psi | 78% | 2874 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 50,401 psi | 79% | 2828 fps | 100% |
| SNPE Vectan Tubal 8000 | <<locked>> | 80% | 41,423 psi | 65% | 2766 fps | 98.2% |
| Somchem S361 | <<locked>> | 80% | 44,193 psi | 69% | 2756 fps | 97.1% |
| Somchem S365 | <<locked>> | 80% | 46,949 psi | 74% | 2841 fps | 100% |
| Somchem S385 | <<locked>> | 80% | 42,119 psi | 66% | 2749 fps | 98.9% |
| Vihtavuori N160 | <<locked>> | 80% | 51,053 psi | 80% | 2884 fps | 100% |
| Vihtavuori N165 | <<locked>> | 80% | 36,608 psi | 57% | 2618 fps | 97.4% |
| Vihtavuori N170 | <<locked>> | 96% | 53,664 psi | 84% | 2972 fps | 95.4% |
| Vihtavuori N550 | <<locked>> | 80% | 50,314 psi | 79% | 2887 fps | 100% |
| Vihtavuori N555 | <<locked>> | 80% | 41,046 psi | 64% | 2753 fps | 100% |
| Vihtavuori N560 | <<locked>> | 80% | 40,190 psi | 63% | 2792 fps | 96.1% |
| Vihtavuori N565 | <<locked>> | 84% | 37,797 psi | 59% | 2720 fps | 95.6% |
| Vihtavuori N568 | <<locked>> | 90% | 40,886 psi | 64% | 2838 fps | 95.3% |
| Vihtavuori N570 | <<locked>> | 96% | 48,167 psi | 75% | 3025 fps | 95.5% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 50,328 psi | 79% | 2835 fps | 100% |
| Winchester 760 | <<locked>> | 80% | 52,562 psi | 82% | 2966 fps | 100% |
| Winchester StaBALL HD | <<locked>> | 80% | 33,707 psi | 53% | 2717 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 80% | 38,725 psi | 61% | 2674 fps | 97.4% |
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 73 powders for 6.5 x 68 loaded with the .264 | 135gr | Peregrine Glider GRM. Vihtavuori N570 delivers the highest muzzle velocity at 3,163 fps; across all powders the maximum-charge window runs from 1,900 fps to 3,163 fps. ADI AR 2217 gives the best case fill at 100 %, and 73 of the 73 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 135.0 gr projectile in 0.264" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. ADI AR 2217, ADI AR 2225, Alliant Reloder-33 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. Hodgdon Retumbo, ReloadSwiss RS 76, Accurate High Country rank at the top here: for 6.5 x 68 with the .264 | 135gr | Peregrine Glider GRM 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.