Load Specifications
Bullet:.243 | 88gr | Berger Varmint
Bullet Manufacturer:Berger
Bullet Weight:88 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Caliber:6 mm XC load data
Case Length (l3):1.901"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:49.7 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:9.5
Load data in caliber 6 mm XC with .243 | 88gr | Berger Varmint bullet and 101 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Alliant Reloder-17 and Alliant Power Pro 2000-MR.
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: 24"
| Powder | Charge | FR | MaxP | % | V(0) | z |
|---|---|---|---|---|---|---|
| Accurate 2015 | <<locked>> | 84% | 54,665 psi | 86% | 3035 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 56,710 psi | 89% | 3117 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 56,811 psi | 89% | 3110 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 54,868 psi | 86% | 3127 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 56,014 psi | 88% | 3100 fps | 96.2% |
| Accurate 4064 | <<locked>> | 92% | 56,521 psi | 89% | 3153 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 56,492 psi | 89% | 3238 fps | 99.3% |
| ADI AR 2206H | <<locked>> | 88% | 57,305 psi | 90% | 3196 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 92% | 54,607 psi | 86% | 3130 fps | 99.4% |
| ADI Benchmark 8208 | <<locked>> | 86% | 56,072 psi | 88% | 3140 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,985 psi | 89% | 3117 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 57,217 psi | 90% | 3323 fps | 99.7% |
| Alliant Power Pro Varmint | <<locked>> | 86% | 54,346 psi | 85% | 3146 fps | 99.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 92% | 54,868 psi | 86% | 3159 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 57,464 psi | 90% | 3091 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 90% | 55,143 psi | 86% | 3179 fps | 99.5% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 54,128 psi | 85% | 3241 fps | 99.3% |
| Alliant Reloder-17 | <<locked>> | 96% | 55,390 psi | 87% | 3284 fps | 100% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 38,740 psi | 61% | 2936 fps | 97.6% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 43,439 psi | 68% | 3107 fps | 96.6% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 57,377 psi | 90% | 3209 fps | 99.4% |
| Bofors RP3 | <<locked>> | 92% | 55,245 psi | 87% | 3173 fps | 100% |
| Bofors RP7 | <<locked>> | 96% | 55,680 psi | 87% | 3140 fps | 96.4% |
| Hodgdon Benchmark | <<locked>> | 84% | 54,447 psi | 85% | 3068 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 55,477 psi | 87% | 3169 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 57,667 psi | 90% | 3281 fps | 99.7% |
| Hodgdon H322 | <<locked>> | 82% | 56,956 psi | 89% | 3140 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 56,579 psi | 89% | 3189 fps | 99% |
| Hodgdon H414 | <<locked>> | 98% | 55,941 psi | 88% | 3235 fps | 97.2% |
| Hodgdon H4350 | <<locked>> | 96% | 56,695 psi | 89% | 3199 fps | 95.9% |
| Hodgdon H4895 | <<locked>> | 86% | 54,186 psi | 85% | 3146 fps | 99.8% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 50,285 psi | 79% | 3104 fps | 99.6% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 57,450 psi | 90% | 3241 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 57,043 psi | 89% | 3278 fps | 96.9% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,389 psi | 55% | 1946 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 55,695 psi | 87% | 3153 fps | 99.9% |
| IMR 3031 | <<locked>> | 88% | 57,682 psi | 90% | 3189 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 57,537 psi | 90% | 3169 fps | 99.7% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,696 psi | 90% | 3146 fps | 97.4% |
| IMR 4198 | <<locked>> | 82% | 57,087 psi | 89% | 3041 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 55,666 psi | 87% | 3159 fps | 96.4% |
| IMR 4451 Enduron | <<locked>> | 96% | 57,319 psi | 90% | 3169 fps | 97.2% |
| IMR 4831ᴾ | <<locked>> | 100% | 53,635 psi | 84% | 3173 fps | 99% |
| IMR 4895 | <<locked>> | 90% | 56,550 psi | 89% | 3212 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 56,072 psi | 88% | 3140 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 56,608 psi | 89% | 3127 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,942 psi | 89% | 3166 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 56,449 psi | 88% | 3110 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 57,348 psi | 90% | 3166 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 56,826 psi | 89% | 3163 fps | 98.4% |
| Lovex S070 | <<locked>> | 98% | 54,070 psi | 85% | 3140 fps | 97% |
| Norma 201 | <<locked>> | 88% | 56,072 psi | 88% | 3136 fps | 100% |
| Norma 202 | <<locked>> | 88% | 56,608 psi | 89% | 3140 fps | 100% |
| Norma 203B | <<locked>> | 90% | 54,302 psi | 85% | 3163 fps | 99.7% |
| Norma URPᴾ | <<locked>> | 100% | 55,680 psi | 87% | 3228 fps | 99.2% |
| Ramshot Big Game | <<locked>> | 90% | 55,230 psi | 87% | 3196 fps | 99.7% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 54,230 psi | 85% | 3212 fps | 97.7% |
| Ramshot TAC | <<locked>> | 86% | 56,536 psi | 89% | 3156 fps | 98.5% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,941 psi | 88% | 3173 fps | 99.8% |
| Ramshot X-Terminator | <<locked>> | 84% | 57,188 psi | 90% | 3140 fps | 99.8% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,897 psi | 56% | 1991 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 55,637 psi | 87% | 3120 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 56,739 psi | 89% | 3166 fps | 97.8% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 55,680 psi | 87% | 3251 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 55,114 psi | 86% | 3287 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 56,362 psi | 88% | 3264 fps | 99.1% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 55,927 psi | 88% | 3291 fps | 98.9% |
| Rottweil R 901 | <<locked>> | 86% | 56,942 psi | 89% | 3120 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 56,159 psi | 88% | 3127 fps | 100% |
| Rottweil R 903 | <<locked>> | 94% | 55,056 psi | 86% | 3163 fps | 99.9% |
| Rottweil R 907 | <<locked>> | 96% | 55,680 psi | 87% | 3140 fps | 96.4% |
| Shooters World Long Rifle | <<locked>> | 98% | 56,826 psi | 89% | 3163 fps | 98.4% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,942 psi | 89% | 3166 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 57,348 psi | 90% | 3166 fps | 100% |
| Shooters World SW4350 | <<locked>> | 98% | 54,070 psi | 85% | 3140 fps | 97% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 57,087 psi | 89% | 3232 fps | 99.8% |
| SNPE Vectan SP 7 | <<locked>> | 86% | 54,955 psi | 86% | 3130 fps | 98.7% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 55,564 psi | 87% | 3159 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 57,334 psi | 90% | 3068 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 92% | 54,027 psi | 85% | 3012 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 57,363 psi | 90% | 3114 fps | 97.3% |
| Somchem S321 | <<locked>> | 84% | 57,595 psi | 90% | 3176 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 56,942 psi | 89% | 3068 fps | 100% |
| Somchem S341 | <<locked>> | 86% | 54,389 psi | 85% | 3120 fps | 99.6% |
| Somchem S355 | <<locked>> | 94% | 55,521 psi | 87% | 3163 fps | 99.9% |
| Somchem S365ᴾ | <<locked>> | 100% | 49,821 psi | 78% | 3169 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 57,116 psi | 90% | 3031 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 57,508 psi | 90% | 3051 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,898 psi | 88% | 3094 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,913 psi | 89% | 3110 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 57,159 psi | 90% | 3143 fps | 100% |
| Vihtavuori N160 | <<locked>> | 98% | 54,650 psi | 86% | 3169 fps | 99% |
| Vihtavuori N530 | <<locked>> | 86% | 56,652 psi | 89% | 3140 fps | 100% |
| Vihtavuori N540 | <<locked>> | 90% | 55,259 psi | 87% | 3107 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 57,392 psi | 90% | 3232 fps | 99.2% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 42,322 psi | 66% | 3025 fps | 97.5% |
| Winchester 6.5 StaBALL | <<locked>> | 98% | 55,100 psi | 86% | 3146 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 56,521 psi | 89% | 3189 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 55,941 psi | 88% | 3235 fps | 97.2% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 34,592 psi | 54% | 2910 fps | 96.7% |
| Winchester StaBALL Match | <<locked>> | 88% | 55,376 psi | 87% | 3166 fps | 99.9% |
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% | 48,051 psi | 75% | 2930 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 53,069 psi | 83% | 3058 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,988 psi | 64% | 2844 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 47,906 psi | 75% | 3009 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 52,431 psi | 82% | 3038 fps | 95.4% |
| Accurate 4064 | <<locked>> | 80% | 38,725 psi | 61% | 2831 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 37,333 psi | 59% | 2861 fps | 95.2% |
| ADI AR 2206H | <<locked>> | 80% | 44,324 psi | 69% | 2953 fps | 98.4% |
| ADI AR 2208 | <<locked>> | 80% | 37,710 psi | 59% | 2785 fps | 96% |
| ADI Benchmark 8208 | <<locked>> | 80% | 46,354 psi | 73% | 2966 fps | 99.5% |
| Alliant AR-Comp | <<locked>> | 80% | 46,717 psi | 73% | 2963 fps | 100% |
| Alliant Power Pro 2000-MR | 36.7 gr | 80% | 40,451 psi | 63% | 2976 fps | 96.6% |
| Alliant Power Pro Varmint | <<locked>> | 80% | 44,860 psi | 70% | 2969 fps | 98.9% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 37,463 psi | 59% | 2812 fps | 97.6% |
| Alliant Reloder-10x | <<locked>> | 80% | 54,143 psi | 85% | 3038 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 40,030 psi | 63% | 2874 fps | 96.9% |
| Alliant Reloder-16 | <<locked>> | 88% | 37,347 psi | 59% | 2871 fps | 95.3% |
| Alliant Reloder-17 | 36.1 gr | 80% | 32,242 psi | 51% | 2756 fps | 95% |
| Alliant Reloder-23 | <<locked>> | 96% | 34,171 psi | 54% | 2812 fps | 95.8% |
| Alliant Reloder-26 | <<locked>> | 98% | 40,248 psi | 63% | 3028 fps | 95.5% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 43,830 psi | 69% | 2959 fps | 97.3% |
| Bofors RP3 | <<locked>> | 80% | 36,999 psi | 58% | 2812 fps | 97.6% |
| Bofors RP7 | <<locked>> | 94% | 52,054 psi | 82% | 3074 fps | 95.6% |
| Hodgdon Benchmark | <<locked>> | 80% | 48,182 psi | 76% | 2959 fps | 99.9% |
| Hodgdon BL-C2 | <<locked>> | 80% | 45,440 psi | 71% | 2992 fps | 99.7% |
| Hodgdon CFE223 | <<locked>> | 80% | 49,937 psi | 78% | 3146 fps | 99% |
| Hodgdon H322 | <<locked>> | 80% | 53,171 psi | 83% | 3081 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 40,625 psi | 64% | 2877 fps | 95.7% |
| Hodgdon H414 | <<locked>> | 94% | 48,791 psi | 76% | 3104 fps | 95.6% |
| Hodgdon H4350 | <<locked>> | 94% | 53,040 psi | 83% | 3133 fps | 95.1% |
| Hodgdon H4895 | <<locked>> | 80% | 44,715 psi | 70% | 2966 fps | 98.9% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 32,140 psi | 50% | 2697 fps | 95.2% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 40,930 psi | 64% | 2933 fps | 98.6% |
| Hodgdon Superformance | <<locked>> | 94% | 49,371 psi | 77% | 3136 fps | 95.1% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,324 psi | 41% | 1739 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,946 psi | 67% | 2913 fps | 98.5% |
| IMR 3031 | <<locked>> | 80% | 44,512 psi | 70% | 2972 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,566 psi | 62% | 2822 fps | 96.9% |
| IMR 4166 Enduron | <<locked>> | 84% | 47,805 psi | 75% | 2969 fps | 95.2% |
| IMR 4198 | <<locked>> | 80% | 54,128 psi | 85% | 2999 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 52,475 psi | 82% | 3104 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 90% | 47,834 psi | 75% | 2995 fps | 95.1% |
| IMR 4831 | <<locked>> | 90% | 38,551 psi | 60% | 2871 fps | 95.8% |
| IMR 4895 | <<locked>> | 80% | 41,017 psi | 64% | 2910 fps | 97.8% |
| IMR 8208 XBR | <<locked>> | 80% | 46,354 psi | 73% | 2966 fps | 99.5% |
| Lovex D073.5 | <<locked>> | 80% | 52,547 psi | 82% | 3061 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 43,642 psi | 68% | 2936 fps | 99.9% |
| Lovex S060 | <<locked>> | 80% | 44,454 psi | 70% | 2890 fps | 98.5% |
| Lovex S062 | <<locked>> | 80% | 39,610 psi | 62% | 2831 fps | 98.5% |
| Lovex S065 | <<locked>> | 88% | 41,843 psi | 66% | 2877 fps | 95.1% |
| Lovex S070 | <<locked>> | 94% | 47,747 psi | 75% | 3022 fps | 95.5% |
| Norma 201 | <<locked>> | 80% | 43,569 psi | 68% | 2907 fps | 99.2% |
| Norma 202 | <<locked>> | 80% | 43,918 psi | 69% | 2920 fps | 100% |
| Norma 203B | <<locked>> | 80% | 39,436 psi | 62% | 2864 fps | 97.3% |
| Norma URP | <<locked>> | 88% | 37,623 psi | 59% | 2861 fps | 95.2% |
| Ramshot Big Game | <<locked>> | 80% | 39,146 psi | 61% | 2877 fps | 97% |
| Ramshot Hunter | <<locked>> | 94% | 44,715 psi | 70% | 3028 fps | 95.4% |
| Ramshot TAC | <<locked>> | 80% | 46,354 psi | 73% | 2966 fps | 96.6% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,963 psi | 72% | 2992 fps | 98.7% |
| Ramshot X-Terminator | <<locked>> | 80% | 50,328 psi | 79% | 3025 fps | 99.2% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,585 psi | 42% | 1778 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 52,040 psi | 82% | 3061 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 46,644 psi | 73% | 2979 fps | 95.7% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 42,308 psi | 66% | 2992 fps | 97.4% |
| ReloadSwiss RS 60 | 36.1 gr | 80% | 34,330 psi | 54% | 2835 fps | 98.4% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 39,711 psi | 62% | 2940 fps | 95.7% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 42,714 psi | 67% | 3018 fps | 95.8% |
| Rottweil R 901 | <<locked>> | 80% | 47,442 psi | 74% | 2959 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 41,437 psi | 65% | 2851 fps | 98.8% |
| Rottweil R 903 | <<locked>> | 80% | 34,940 psi | 55% | 2753 fps | 96.7% |
| Rottweil R 907 | <<locked>> | 94% | 52,054 psi | 82% | 3074 fps | 95.6% |
| Shooters World Long Rifle | <<locked>> | 88% | 41,843 psi | 66% | 2877 fps | 95.1% |
| Shooters World Match Rifle | <<locked>> | 80% | 43,642 psi | 68% | 2936 fps | 99.9% |
| Shooters World Precision | <<locked>> | 80% | 39,610 psi | 62% | 2831 fps | 98.5% |
| Shooters World SW4350 | <<locked>> | 94% | 47,747 psi | 75% | 3022 fps | 95.5% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,882 psi | 56% | 2802 fps | 96% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,599 psi | 70% | 2936 fps | 96.7% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 43,076 psi | 68% | 2923 fps | 98.1% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 45,005 psi | 71% | 2864 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 37,434 psi | 59% | 2713 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 92% | 47,079 psi | 74% | 2933 fps | 95% |
| Somchem S321 | <<locked>> | 80% | 50,502 psi | 79% | 3061 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 44,527 psi | 70% | 2864 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 44,614 psi | 70% | 2940 fps | 98.4% |
| Somchem S355 | <<locked>> | 80% | 35,708 psi | 56% | 2759 fps | 96.7% |
| Somchem S365 | <<locked>> | 84% | 29,544 psi | 46% | 2680 fps | 95.6% |
| Vihtavuori N130 | <<locked>> | 80% | 50,763 psi | 80% | 2936 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 45,310 psi | 71% | 2861 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,973 psi | 64% | 2841 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 41,582 psi | 65% | 2848 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,997 psi | 53% | 2694 fps | 97.6% |
| Vihtavuori N160 | <<locked>> | 88% | 39,291 psi | 62% | 2867 fps | 95.7% |
| Vihtavuori N530 | <<locked>> | 80% | 46,557 psi | 73% | 2963 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 40,030 psi | 63% | 2831 fps | 99.8% |
| Vihtavuori N550 | <<locked>> | 88% | 38,624 psi | 61% | 2864 fps | 95.2% |
| Vihtavuori N555 | <<locked>> | 94% | 34,795 psi | 55% | 2841 fps | 95% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 32,242 psi | 51% | 2657 fps | 95.4% |
| Winchester 748 | <<locked>> | 80% | 46,122 psi | 72% | 3012 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 49,211 psi | 77% | 3114 fps | 95.7% |
| Winchester StaBALL HD | <<locked>> | 98% | 32,648 psi | 51% | 2844 fps | 95.5% |
| Winchester StaBALL Match | <<locked>> | 80% | 42,380 psi | 66% | 2923 fps | 98.5% |
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 101 powders for 6 mm XC loaded with the .243 | 88gr | Berger Varmint. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,323 fps; across all powders the maximum-charge window runs from 1,946 fps to 3,323 fps. Accurate 4350 gives the best case fill at 100 %, and 101 of the 101 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (440 MPa), the top charges use 54–90 %, leaving at least 10 % headroom. The 88.0 gr projectile in 0.243" calls for a 1:9.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-23 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 60, Alliant Reloder-17, Alliant Power Pro 2000-MR rank at the top here: for 6 mm XC with the .243 | 88gr | Berger Varmint 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.