Load Specifications
Load data in caliber 6 mm XC with .243 | 95gr | Nosler Ballistic Tip Hunting 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-17, ReloadSwiss RS 60 and Winchester 760.
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 2015 | <<locked>> | 84% | 57,058 psi | 89% | 2956 fps | 100% |
| Accurate 2495 | <<locked>> | 88% | 55,898 psi | 88% | 2979 fps | 100% |
| Accurate 2520 | <<locked>> | 82% | 54,027 psi | 85% | 2995 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 55,013 psi | 86% | 2979 fps | 96.8% |
| Accurate 3100ᴾ | <<locked>> | 100% | 42,873 psi | 67% | 2861 fps | 96% |
| Accurate 4064 | <<locked>> | 90% | 55,753 psi | 87% | 3028 fps | 100% |
| Accurate 4350 | <<locked>> | 98% | 56,086 psi | 88% | 3123 fps | 99.6% |
| ADI AR 2206H | <<locked>> | 86% | 56,173 psi | 88% | 3064 fps | 100% |
| ADI AR 2208 | <<locked>> | 92% | 57,174 psi | 90% | 3064 fps | 99.9% |
| ADI Benchmark 8208 | <<locked>> | 84% | 54,911 psi | 86% | 3009 fps | 100% |
| Alliant AR-Comp | <<locked>> | 84% | 56,275 psi | 88% | 2986 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 88% | 56,057 psi | 88% | 3192 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 57,334 psi | 90% | 3087 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 88% | 54,244 psi | 85% | 3054 fps | 99.8% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 56,826 psi | 89% | 3176 fps | 99.9% |
| Alliant Reloder-17 | <<locked>> | 94% | 54,549 psi | 85% | 3156 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 40,872 psi | 64% | 2894 fps | 98.9% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 45,876 psi | 72% | 3068 fps | 98.2% |
| Baschieri & Pellagri 107 | <<locked>> | 86% | 56,144 psi | 88% | 3081 fps | 99.7% |
| Bofors RP3 | <<locked>> | 90% | 54,462 psi | 85% | 3048 fps | 100% |
| Bofors RP7 | <<locked>> | 94% | 54,288 psi | 85% | 3012 fps | 97% |
| Hodgdon Benchmark | <<locked>> | 84% | 56,666 psi | 89% | 2992 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 84% | 54,650 psi | 86% | 3041 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 82% | 56,478 psi | 89% | 3146 fps | 99.9% |
| Hodgdon H380 | <<locked>> | 90% | 55,259 psi | 87% | 3061 fps | 99.3% |
| Hodgdon H414 | <<locked>> | 96% | 55,056 psi | 86% | 3114 fps | 97.8% |
| Hodgdon H4350 | <<locked>> | 94% | 55,564 psi | 87% | 3074 fps | 96.5% |
| Hodgdon H4895 | <<locked>> | 86% | 56,739 psi | 89% | 3074 fps | 100% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 53,055 psi | 83% | 3041 fps | 100% |
| Hodgdon LEVERevolution | <<locked>> | 88% | 56,347 psi | 88% | 3110 fps | 100% |
| Hodgdon Superformance | <<locked>> | 96% | 55,811 psi | 87% | 3153 fps | 97.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,549 psi | 56% | 1870 fps | 100% |
| Hodgdon VARGET | <<locked>> | 86% | 54,549 psi | 85% | 3025 fps | 100% |
| IMR 3031 | <<locked>> | 86% | 56,637 psi | 89% | 3051 fps | 100% |
| IMR 4064 | <<locked>> | 90% | 56,797 psi | 89% | 3048 fps | 99.9% |
| IMR 4166 Enduron | <<locked>> | 88% | 56,463 psi | 88% | 3022 fps | 97.9% |
| IMR 4350 | <<locked>> | 98% | 54,969 psi | 86% | 3045 fps | 97.1% |
| IMR 4451 Enduron | <<locked>> | 94% | 56,289 psi | 88% | 3051 fps | 97.8% |
| IMR 4831ᴾ | <<locked>> | 100% | 56,637 psi | 89% | 3114 fps | 99.7% |
| IMR 4895 | <<locked>> | 88% | 55,651 psi | 87% | 3084 fps | 100% |
| IMR 8208 XBR | <<locked>> | 84% | 54,911 psi | 86% | 3009 fps | 100% |
| Lovex D073.6 | <<locked>> | 86% | 56,072 psi | 88% | 3038 fps | 100% |
| Lovex S060 | <<locked>> | 86% | 55,521 psi | 87% | 2986 fps | 99.9% |
| Lovex S062 | <<locked>> | 90% | 56,347 psi | 88% | 3038 fps | 100% |
| Lovex S065 | <<locked>> | 96% | 55,579 psi | 87% | 3038 fps | 98.8% |
| Lovex S070 | <<locked>> | 98% | 56,652 psi | 89% | 3077 fps | 98.1% |
| Norma 201 | <<locked>> | 86% | 54,897 psi | 86% | 3005 fps | 100% |
| Norma 202 | <<locked>> | 86% | 55,506 psi | 87% | 3009 fps | 100% |
| Norma 203B | <<locked>> | 90% | 57,130 psi | 90% | 3097 fps | 100% |
| Norma 204 | <<locked>> | 98% | 55,288 psi | 87% | 3091 fps | 95.8% |
| Norma URP | <<locked>> | 98% | 54,737 psi | 86% | 3104 fps | 99.5% |
| Ramshot Big Game | <<locked>> | 88% | 54,230 psi | 85% | 3068 fps | 99.9% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 57,217 psi | 90% | 3156 fps | 98.8% |
| Ramshot TAC | <<locked>> | 84% | 55,172 psi | 86% | 3028 fps | 98.9% |
| Ramshot Wild Boar | <<locked>> | 84% | 55,085 psi | 86% | 3048 fps | 99.9% |
| Ramshot X-Terminator | <<locked>> | 82% | 55,666 psi | 87% | 3009 fps | 99.9% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 36,129 psi | 57% | 1916 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 90% | 55,477 psi | 87% | 3041 fps | 98.2% |
| ReloadSwiss RS 52 | <<locked>> | 86% | 54,984 psi | 86% | 3127 fps | 99.8% |
| ReloadSwiss RS 60 | <<locked>> | 92% | 54,215 psi | 85% | 3159 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 98% | 55,796 psi | 87% | 3146 fps | 99.5% |
| ReloadSwiss RS 70 | <<locked>> | 98% | 55,085 psi | 86% | 3173 fps | 99.3% |
| Rottweil R 901 | <<locked>> | 84% | 55,622 psi | 87% | 2982 fps | 100% |
| Rottweil R 902 | <<locked>> | 88% | 55,390 psi | 87% | 3005 fps | 100% |
| Rottweil R 903 | <<locked>> | 92% | 54,331 psi | 85% | 3041 fps | 100% |
| Rottweil R 907 | <<locked>> | 94% | 54,288 psi | 85% | 3012 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 96% | 55,579 psi | 87% | 3038 fps | 98.8% |
| Shooters World Match Rifle | <<locked>> | 86% | 56,072 psi | 88% | 3038 fps | 100% |
| Shooters World Precision | <<locked>> | 90% | 56,347 psi | 88% | 3038 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 56,652 psi | 89% | 3077 fps | 98.1% |
| SNPE Vectan SP 11 | <<locked>> | 92% | 56,043 psi | 88% | 3104 fps | 99.9% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 57,363 psi | 90% | 3061 fps | 99.4% |
| SNPE Vectan SP 9 | <<locked>> | 86% | 54,650 psi | 86% | 3035 fps | 99.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 86% | 56,246 psi | 88% | 2940 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 56,536 psi | 89% | 2936 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 96% | 55,999 psi | 88% | 2992 fps | 97.8% |
| Somchem S321 | <<locked>> | 82% | 56,159 psi | 88% | 3041 fps | 100% |
| Somchem S335 | <<locked>> | 86% | 55,695 psi | 87% | 2936 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 57,261 psi | 90% | 3054 fps | 100% |
| Somchem S355 | <<locked>> | 92% | 54,708 psi | 86% | 3038 fps | 100% |
| Somchem S365ᴾ | <<locked>> | 100% | 52,910 psi | 83% | 3107 fps | 100% |
| Vihtavuori N130 | <<locked>> | 82% | 55,956 psi | 88% | 2900 fps | 100% |
| Vihtavuori N133 | <<locked>> | 86% | 56,521 psi | 89% | 2927 fps | 100% |
| Vihtavuori N135 | <<locked>> | 88% | 55,230 psi | 87% | 2969 fps | 100% |
| Vihtavuori N140 | <<locked>> | 88% | 55,840 psi | 88% | 2982 fps | 100% |
| Vihtavuori N150 | <<locked>> | 94% | 55,883 psi | 88% | 3012 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 57,522 psi | 90% | 3104 fps | 99.6% |
| Vihtavuori N530 | <<locked>> | 84% | 55,434 psi | 87% | 3009 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 57,624 psi | 90% | 3028 fps | 100% |
| Vihtavuori N550 | <<locked>> | 98% | 56,478 psi | 89% | 3107 fps | 99.5% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 45,121 psi | 71% | 2976 fps | 98.8% |
| Winchester 6.5 StaBALL | <<locked>> | 96% | 53,795 psi | 84% | 3022 fps | 100% |
| Winchester 748 | <<locked>> | 84% | 55,622 psi | 87% | 3061 fps | 100% |
| Winchester 760 | <<locked>> | 96% | 55,056 psi | 86% | 3114 fps | 97.8% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 36,622 psi | 57% | 2894 fps | 98.8% |
| Winchester StaBALL Match | <<locked>> | 86% | 54,563 psi | 86% | 3041 fps | 100% |
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 2015 | <<locked>> | 80% | 50,183 psi | 79% | 2854 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 43,192 psi | 68% | 2776 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 50,444 psi | 79% | 2943 fps | 100% |
| Accurate 2700 | <<locked>> | 84% | 48,138 psi | 75% | 2861 fps | 95.3% |
| Accurate 3100 | <<locked>> | 98% | 40,205 psi | 63% | 2805 fps | 95.1% |
| Accurate 4064 | <<locked>> | 80% | 40,828 psi | 64% | 2769 fps | 100% |
| Accurate 4350 | <<locked>> | 84% | 34,418 psi | 54% | 2690 fps | 95.1% |
| ADI AR 2206H | <<locked>> | 80% | 46,383 psi | 73% | 2890 fps | 99.2% |
| ADI AR 2208 | <<locked>> | 80% | 39,392 psi | 62% | 2726 fps | 97.4% |
| ADI Benchmark 8208 | <<locked>> | 80% | 48,414 psi | 76% | 2897 fps | 99.9% |
| Alliant AR-Comp | <<locked>> | 80% | 49,124 psi | 77% | 2884 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 80% | 42,264 psi | 66% | 2923 fps | 98% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 39,363 psi | 62% | 2756 fps | 98.7% |
| Alliant Reloder-15 | <<locked>> | 80% | 42,018 psi | 66% | 2822 fps | 98.1% |
| Alliant Reloder-16 | <<locked>> | 84% | 34,592 psi | 54% | 2703 fps | 95.2% |
| Alliant Reloder-17 | 35.7 gr | 80% | 33,997 psi | 53% | 2720 fps | 96.9% |
| Alliant Reloder-23 | <<locked>> | 92% | 31,952 psi | 50% | 2661 fps | 95.9% |
| Alliant Reloder-26 | <<locked>> | 94% | 37,217 psi | 58% | 2861 fps | 95.4% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 45,730 psi | 72% | 2894 fps | 98.4% |
| Bofors RP3 | <<locked>> | 80% | 39,044 psi | 61% | 2759 fps | 98.8% |
| Bofors RP7 | <<locked>> | 90% | 48,196 psi | 76% | 2904 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 50,096 psi | 79% | 2887 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 80% | 47,442 psi | 74% | 2920 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 80% | 52,707 psi | 83% | 3084 fps | 99.7% |
| Hodgdon H380 | <<locked>> | 80% | 39,900 psi | 63% | 2762 fps | 96.4% |
| Hodgdon H414 | <<locked>> | 90% | 45,179 psi | 71% | 2930 fps | 95.5% |
| Hodgdon H4350 | <<locked>> | 90% | 48,950 psi | 77% | 2953 fps | 95% |
| Hodgdon H4895 | <<locked>> | 80% | 46,804 psi | 73% | 2904 fps | 99.6% |
| Hodgdon Hybrid 100V | <<locked>> | 82% | 29,747 psi | 47% | 2539 fps | 95.1% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 42,859 psi | 67% | 2871 fps | 99.4% |
| Hodgdon Superformance | <<locked>> | 92% | 48,298 psi | 76% | 3018 fps | 95.8% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,658 psi | 42% | 1677 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 44,904 psi | 70% | 2851 fps | 99.3% |
| IMR 3031 | <<locked>> | 80% | 46,862 psi | 73% | 2900 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 41,379 psi | 65% | 2766 fps | 98.1% |
| IMR 4166 Enduron | <<locked>> | 80% | 44,048 psi | 69% | 2792 fps | 95.1% |
| IMR 4350 | <<locked>> | 94% | 48,515 psi | 76% | 2930 fps | 95.7% |
| IMR 4451 Enduron | <<locked>> | 88% | 46,949 psi | 74% | 2881 fps | 95.8% |
| IMR 4831 | <<locked>> | 86% | 35,592 psi | 56% | 2703 fps | 95.7% |
| IMR 4895 | <<locked>> | 80% | 43,076 psi | 68% | 2851 fps | 98.8% |
| IMR 8208 XBR | <<locked>> | 80% | 48,414 psi | 76% | 2897 fps | 99.9% |
| Lovex D073.6 | <<locked>> | 80% | 45,992 psi | 72% | 2874 fps | 100% |
| Lovex S060 | <<locked>> | 80% | 46,253 psi | 72% | 2825 fps | 99.3% |
| Lovex S062 | <<locked>> | 80% | 41,481 psi | 65% | 2772 fps | 99.3% |
| Lovex S065 | <<locked>> | 84% | 38,740 psi | 61% | 2710 fps | 95% |
| Lovex S070 | <<locked>> | 90% | 44,382 psi | 70% | 2854 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 45,556 psi | 71% | 2844 fps | 99.7% |
| Norma 202 | <<locked>> | 80% | 45,963 psi | 72% | 2851 fps | 100% |
| Norma 203B | <<locked>> | 80% | 41,408 psi | 65% | 2808 fps | 98.5% |
| Norma 204 | <<locked>> | 96% | 51,967 psi | 81% | 3031 fps | 95.1% |
| Norma URP | <<locked>> | 84% | 34,635 psi | 54% | 2690 fps | 95% |
| Ramshot Big Game | <<locked>> | 80% | 41,002 psi | 64% | 2822 fps | 98.2% |
| Ramshot Hunter | <<locked>> | 90% | 41,191 psi | 65% | 2854 fps | 95.3% |
| Ramshot TAC | <<locked>> | 80% | 48,515 psi | 76% | 2907 fps | 97.8% |
| Ramshot Wild Boar | <<locked>> | 80% | 48,283 psi | 76% | 2933 fps | 99.4% |
| Ramshot X-Terminator | <<locked>> | 80% | 52,243 psi | 82% | 2953 fps | 99.7% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,963 psi | 42% | 1713 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 42,902 psi | 67% | 2805 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 44,483 psi | 70% | 2933 fps | 98.6% |
| ReloadSwiss RS 60 | 35.7 gr | 80% | 36,172 psi | 57% | 2792 fps | 99.5% |
| ReloadSwiss RS 62 | <<locked>> | 86% | 36,593 psi | 57% | 2769 fps | 95.5% |
| ReloadSwiss RS 70 | <<locked>> | 88% | 39,262 psi | 62% | 2841 fps | 95.6% |
| Rottweil R 901 | <<locked>> | 80% | 49,400 psi | 77% | 2884 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 43,308 psi | 68% | 2789 fps | 99.5% |
| Rottweil R 903 | <<locked>> | 80% | 36,854 psi | 58% | 2700 fps | 98% |
| Rottweil R 907 | <<locked>> | 90% | 48,196 psi | 76% | 2904 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 84% | 38,740 psi | 61% | 2710 fps | 95% |
| Shooters World Match Rifle | <<locked>> | 80% | 45,992 psi | 72% | 2874 fps | 100% |
| Shooters World Precision | <<locked>> | 80% | 41,481 psi | 65% | 2772 fps | 99.3% |
| Shooters World SW4350 | <<locked>> | 90% | 44,382 psi | 70% | 2854 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 37,550 psi | 59% | 2749 fps | 97.4% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 46,862 psi | 73% | 2881 fps | 98% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 44,802 psi | 70% | 2854 fps | 99% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 46,789 psi | 73% | 2792 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 39,073 psi | 61% | 2648 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 90% | 46,267 psi | 73% | 2822 fps | 95.8% |
| Somchem S321 | <<locked>> | 80% | 52,605 psi | 82% | 2986 fps | 100% |
| Somchem S335 | <<locked>> | 80% | 46,412 psi | 73% | 2792 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 46,528 psi | 73% | 2877 fps | 99.2% |
| Somchem S355 | <<locked>> | 80% | 37,521 psi | 59% | 2707 fps | 98% |
| Somchem S365 | <<locked>> | 80% | 27,224 psi | 43% | 2516 fps | 95.4% |
| Vihtavuori N130 | <<locked>> | 80% | 52,721 psi | 83% | 2854 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 47,166 psi | 74% | 2782 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 43,004 psi | 67% | 2772 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 43,569 psi | 68% | 2782 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 35,781 psi | 56% | 2641 fps | 98.7% |
| Vihtavuori N160 | <<locked>> | 84% | 36,172 psi | 57% | 2697 fps | 95.6% |
| Vihtavuori N530 | <<locked>> | 80% | 48,718 psi | 76% | 2897 fps | 99.9% |
| Vihtavuori N540 | <<locked>> | 80% | 41,974 psi | 66% | 2769 fps | 100% |
| Vihtavuori N550 | <<locked>> | 84% | 35,737 psi | 56% | 2697 fps | 95.1% |
| Vihtavuori N555 | <<locked>> | 90% | 32,314 psi | 51% | 2680 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 31,560 psi | 49% | 2556 fps | 96.1% |
| Winchester 748 | <<locked>> | 80% | 48,515 psi | 76% | 2946 fps | 100% |
| Winchester 760 | 39.3 gr | 90% | 45,179 psi | 71% | 2930 fps | 95.5% |
| Winchester StaBALL HD | <<locked>> | 94% | 30,197 psi | 47% | 2684 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 44,599 psi | 70% | 2864 fps | 99.4% |
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 112 powders for 6 mm XC loaded with the .243 | 95gr | Nosler Ballistic Tip Hunting. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,192 fps; across all powders the maximum-charge window runs from 1,870 fps to 3,192 fps. Accurate 3100 gives the best case fill at 100 %, and 112 of the 112 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 56–90 %, leaving at least 10 % headroom. The 95.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-16 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-17, ReloadSwiss RS 60, Winchester 760 rank at the top here: for 6 mm XC with the .243 | 95gr | Nosler Ballistic Tip Hunting they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, ADI AR 2209, Alliant Reloder-19, Alliant Reloder-22 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.