Load Specifications
Bullet:.243 | 90gr | SUS-TAC HPPT
Bullet Manufacturer:SUS-TAC
Bullet Weight:90 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:1:8.0
Load data in caliber 6 mm XC with .243 | 90gr | SUS-TAC HPPT bullet and 101 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 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.
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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>> | 86% | 57,188 psi | 90% | 3031 fps | 100% |
| Accurate 2460 | <<locked>> | 82% | 55,666 psi | 87% | 3058 fps | 100% |
| Accurate 2495 | <<locked>> | 90% | 55,782 psi | 87% | 3051 fps | 100% |
| Accurate 2520 | <<locked>> | 84% | 53,954 psi | 85% | 3068 fps | 100% |
| Accurate 2700 | <<locked>> | 90% | 55,071 psi | 86% | 3038 fps | 96% |
| Accurate 4064 | <<locked>> | 92% | 55,593 psi | 87% | 3097 fps | 100% |
| Accurate 4350ᴾ | <<locked>> | 100% | 55,100 psi | 86% | 3173 fps | 99.1% |
| ADI AR 2206H | <<locked>> | 88% | 56,376 psi | 88% | 3136 fps | 99.8% |
| ADI AR 2208 | <<locked>> | 94% | 57,188 psi | 90% | 3127 fps | 99.6% |
| ADI Benchmark 8208 | <<locked>> | 86% | 55,114 psi | 86% | 3081 fps | 100% |
| Alliant AR-Comp | <<locked>> | 86% | 56,086 psi | 88% | 3061 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 82% | 57,246 psi | 90% | 3199 fps | 100% |
| Alliant Power Pro 2000-MR | <<locked>> | 90% | 55,767 psi | 87% | 3255 fps | 99.6% |
| Alliant Reloder- TS 15.5 | <<locked>> | 94% | 57,029 psi | 89% | 3153 fps | 100% |
| Alliant Reloder-10x | <<locked>> | 82% | 56,405 psi | 88% | 3031 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 92% | 57,682 psi | 90% | 3176 fps | 99.7% |
| Alliant Reloder-16ᴾ | <<locked>> | 100% | 53,272 psi | 83% | 3182 fps | 99.2% |
| Alliant Reloder-17 | <<locked>> | 96% | 54,172 psi | 85% | 3222 fps | 99.9% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 37,797 psi | 59% | 2874 fps | 97.3% |
| Alliant Reloder-26ᴾ | <<locked>> | 100% | 42,424 psi | 66% | 3045 fps | 96.3% |
| Baschieri & Pellagri 107 | <<locked>> | 88% | 55,941 psi | 88% | 3143 fps | 99.3% |
| Bofors RP3 | <<locked>> | 92% | 54,056 psi | 85% | 3110 fps | 99.9% |
| Bofors RP7 | <<locked>> | 96% | 54,288 psi | 85% | 3071 fps | 96.1% |
| Hodgdon Benchmark | <<locked>> | 86% | 57,058 psi | 89% | 3064 fps | 100% |
| Hodgdon BL-C2 | <<locked>> | 86% | 54,752 psi | 86% | 3114 fps | 100% |
| Hodgdon CFE223 | <<locked>> | 84% | 56,318 psi | 88% | 3215 fps | 99.6% |
| Hodgdon H322 | <<locked>> | 82% | 55,695 psi | 87% | 3074 fps | 100% |
| Hodgdon H335 | <<locked>> | 82% | 57,014 psi | 89% | 3104 fps | 100% |
| Hodgdon H380 | <<locked>> | 92% | 55,071 psi | 86% | 3120 fps | 98.8% |
| Hodgdon H414 | <<locked>> | 98% | 54,752 psi | 86% | 3173 fps | 97% |
| Hodgdon H4895 | <<locked>> | 88% | 56,913 psi | 89% | 3146 fps | 99.9% |
| Hodgdon Hybrid 100Vᴾ | <<locked>> | 100% | 49,342 psi | 77% | 3045 fps | 99.5% |
| Hodgdon LEVERevolution | <<locked>> | 90% | 56,347 psi | 88% | 3179 fps | 100% |
| Hodgdon Superformance | <<locked>> | 98% | 55,448 psi | 87% | 3205 fps | 96.5% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 35,331 psi | 55% | 1906 fps | 100% |
| Hodgdon VARGET | <<locked>> | 88% | 54,360 psi | 85% | 3087 fps | 99.8% |
| IMR 3031 | <<locked>> | 88% | 56,492 psi | 89% | 3127 fps | 100% |
| IMR 4064 | <<locked>> | 92% | 56,666 psi | 89% | 3110 fps | 99.6% |
| IMR 4166 Enduron | <<locked>> | 90% | 57,029 psi | 89% | 3091 fps | 97.2% |
| IMR 4198 | <<locked>> | 82% | 56,304 psi | 88% | 2986 fps | 100% |
| IMR 4350ᴾ | <<locked>> | 100% | 54,520 psi | 85% | 3097 fps | 96.2% |
| IMR 4451 Enduron | <<locked>> | 96% | 56,376 psi | 88% | 3110 fps | 97% |
| IMR 4831ᴾ | <<locked>> | 100% | 52,359 psi | 82% | 3110 fps | 98.9% |
| IMR 4895 | <<locked>> | 90% | 55,680 psi | 87% | 3156 fps | 99.8% |
| IMR 8208 XBR | <<locked>> | 86% | 55,114 psi | 86% | 3081 fps | 100% |
| Lovex D073.5 | <<locked>> | 82% | 55,303 psi | 87% | 3061 fps | 100% |
| Lovex D073.6 | <<locked>> | 88% | 56,086 psi | 88% | 3110 fps | 100% |
| Lovex S060 | <<locked>> | 88% | 55,970 psi | 88% | 3058 fps | 99.8% |
| Lovex S062 | <<locked>> | 92% | 56,478 psi | 89% | 3110 fps | 100% |
| Lovex S065 | <<locked>> | 98% | 55,492 psi | 87% | 3097 fps | 98.2% |
| Lovex S070ᴾ | <<locked>> | 100% | 56,550 psi | 89% | 3140 fps | 97.4% |
| Norma 201 | <<locked>> | 88% | 55,071 psi | 86% | 3077 fps | 100% |
| Norma 202 | <<locked>> | 88% | 55,608 psi | 87% | 3081 fps | 100% |
| Norma 203B | <<locked>> | 92% | 56,840 psi | 89% | 3159 fps | 99.8% |
| Norma URPᴾ | <<locked>> | 100% | 54,346 psi | 85% | 3163 fps | 99% |
| Ramshot Big Game | <<locked>> | 92% | 57,682 psi | 90% | 3189 fps | 99.8% |
| Ramshot Hunterᴾ | <<locked>> | 100% | 53,229 psi | 83% | 3153 fps | 97.5% |
| Ramshot TAC | <<locked>> | 86% | 55,521 psi | 87% | 3094 fps | 98.3% |
| Ramshot Wild Boar | <<locked>> | 86% | 55,259 psi | 87% | 3120 fps | 99.7% |
| Ramshot X-Terminator | <<locked>> | 84% | 56,043 psi | 88% | 3081 fps | 99.7% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 35,868 psi | 56% | 1955 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 82% | 54,534 psi | 85% | 3058 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 92% | 55,825 psi | 87% | 3107 fps | 97.6% |
| ReloadSwiss RS 52 | <<locked>> | 88% | 54,331 psi | 85% | 3186 fps | 99.4% |
| ReloadSwiss RS 60 | <<locked>> | 94% | 54,273 psi | 85% | 3228 fps | 100% |
| ReloadSwiss RS 62ᴾ | <<locked>> | 100% | 54,795 psi | 86% | 3196 fps | 99% |
| ReloadSwiss RS 70ᴾ | <<locked>> | 100% | 54,665 psi | 86% | 3222 fps | 98.7% |
| Rottweil R 901 | <<locked>> | 86% | 55,695 psi | 87% | 3054 fps | 100% |
| Rottweil R 902 | <<locked>> | 90% | 55,201 psi | 87% | 3068 fps | 100% |
| Rottweil R 903 | <<locked>> | 96% | 57,421 psi | 90% | 3156 fps | 100% |
| Rottweil R 907 | <<locked>> | 96% | 54,288 psi | 85% | 3071 fps | 96.1% |
| Shooters World Long Rifle | <<locked>> | 98% | 55,492 psi | 87% | 3097 fps | 98.2% |
| Shooters World Match Rifle | <<locked>> | 88% | 56,086 psi | 88% | 3110 fps | 100% |
| Shooters World Precision | <<locked>> | 92% | 56,478 psi | 89% | 3110 fps | 100% |
| Shooters World SW4350ᴾ | <<locked>> | 100% | 56,550 psi | 89% | 3140 fps | 97.4% |
| SNPE Vectan SP 11 | <<locked>> | 94% | 55,738 psi | 87% | 3169 fps | 99.8% |
| SNPE Vectan SP 3 | <<locked>> | 82% | 57,464 psi | 90% | 3058 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 88% | 57,740 psi | 90% | 3133 fps | 99% |
| SNPE Vectan SP 9 | <<locked>> | 88% | 54,389 psi | 85% | 3094 fps | 99.7% |
| SNPE Vectan Tubal 3000 | <<locked>> | 88% | 56,695 psi | 89% | 3015 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 94% | 56,536 psi | 89% | 3009 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 98% | 56,202 psi | 88% | 3051 fps | 97% |
| Somchem S321 | <<locked>> | 84% | 56,347 psi | 88% | 3114 fps | 100% |
| Somchem S335 | <<locked>> | 88% | 55,985 psi | 88% | 3012 fps | 100% |
| Somchem S341 | <<locked>> | 88% | 57,101 psi | 89% | 3120 fps | 99.8% |
| Somchem S355 | <<locked>> | 94% | 54,404 psi | 85% | 3100 fps | 99.8% |
| Somchem S365ᴾ | <<locked>> | 100% | 48,631 psi | 76% | 3107 fps | 100% |
| Vihtavuori N130 | <<locked>> | 84% | 56,246 psi | 88% | 2976 fps | 100% |
| Vihtavuori N133 | <<locked>> | 88% | 56,855 psi | 89% | 2999 fps | 100% |
| Vihtavuori N135 | <<locked>> | 90% | 55,201 psi | 87% | 3041 fps | 100% |
| Vihtavuori N140 | <<locked>> | 90% | 56,043 psi | 88% | 3054 fps | 100% |
| Vihtavuori N150 | <<locked>> | 96% | 55,695 psi | 87% | 3077 fps | 100% |
| Vihtavuori N160ᴾ | <<locked>> | 100% | 56,811 psi | 89% | 3159 fps | 99.2% |
| Vihtavuori N530 | <<locked>> | 86% | 55,709 psi | 87% | 3081 fps | 100% |
| Vihtavuori N540 | <<locked>> | 92% | 57,508 psi | 90% | 3097 fps | 100% |
| Vihtavuori N550ᴾ | <<locked>> | 100% | 55,825 psi | 87% | 3163 fps | 99% |
| Vihtavuori N555ᴾ | <<locked>> | 100% | 41,089 psi | 64% | 2959 fps | 97.3% |
| Winchester 6.5 StaBALLᴾ | <<locked>> | 100% | 57,740 psi | 90% | 3143 fps | 100% |
| Winchester 748 | <<locked>> | 86% | 55,637 psi | 87% | 3133 fps | 100% |
| Winchester 760 | <<locked>> | 98% | 54,752 psi | 86% | 3173 fps | 97% |
| Winchester StaBALL Match | <<locked>> | 88% | 54,288 psi | 85% | 3104 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% | 47,456 psi | 74% | 2877 fps | 100% |
| Accurate 2460 | <<locked>> | 80% | 51,938 psi | 81% | 2999 fps | 100% |
| Accurate 2495 | <<locked>> | 80% | 40,089 psi | 63% | 2789 fps | 100% |
| Accurate 2520 | <<locked>> | 80% | 46,847 psi | 73% | 2946 fps | 100% |
| Accurate 2700 | <<locked>> | 88% | 51,416 psi | 81% | 2976 fps | 95.2% |
| Accurate 4064 | <<locked>> | 80% | 37,869 psi | 59% | 2776 fps | 99.8% |
| Accurate 4350 | <<locked>> | 88% | 36,521 psi | 57% | 2805 fps | 95% |
| ADI AR 2206H | <<locked>> | 80% | 43,569 psi | 68% | 2897 fps | 98.3% |
| ADI AR 2208 | <<locked>> | 80% | 37,275 psi | 58% | 2733 fps | 95.9% |
| ADI Benchmark 8208 | <<locked>> | 80% | 45,600 psi | 71% | 2910 fps | 99.4% |
| Alliant AR-Comp | <<locked>> | 80% | 45,614 psi | 71% | 2904 fps | 100% |
| Alliant Power Pro 1200-R | <<locked>> | 80% | 53,316 psi | 84% | 3133 fps | 99.8% |
| Alliant Power Pro 2000-MR | 35.4 gr | 80% | 39,610 psi | 62% | 2917 fps | 96.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 36,709 psi | 58% | 2756 fps | 97.5% |
| Alliant Reloder-10x | <<locked>> | 80% | 53,417 psi | 84% | 2986 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 39,291 psi | 62% | 2818 fps | 96.7% |
| Alliant Reloder-16 | <<locked>> | 88% | 36,622 psi | 57% | 2815 fps | 95% |
| Alliant Reloder-17 | 35.7 gr | 82% | 33,750 psi | 53% | 2766 fps | 95.8% |
| Alliant Reloder-23 | <<locked>> | 96% | 33,475 psi | 52% | 2756 fps | 95.5% |
| Alliant Reloder-26 | <<locked>> | 98% | 39,465 psi | 62% | 2969 fps | 95.2% |
| Baschieri & Pellagri 107 | <<locked>> | 80% | 42,975 psi | 67% | 2900 fps | 97.1% |
| Bofors RP3 | <<locked>> | 80% | 36,274 psi | 57% | 2756 fps | 97.5% |
| Bofors RP7 | <<locked>> | 94% | 51,082 psi | 80% | 3015 fps | 95.4% |
| Hodgdon Benchmark | <<locked>> | 80% | 47,427 psi | 74% | 2900 fps | 99.8% |
| Hodgdon BL-C2 | <<locked>> | 80% | 44,483 psi | 70% | 2930 fps | 99.6% |
| Hodgdon CFE223 | <<locked>> | 80% | 48,936 psi | 77% | 3081 fps | 98.8% |
| Hodgdon H322 | <<locked>> | 80% | 52,286 psi | 82% | 3022 fps | 100% |
| Hodgdon H335 | <<locked>> | 80% | 53,258 psi | 83% | 3048 fps | 100% |
| Hodgdon H380 | <<locked>> | 82% | 39,726 psi | 62% | 2818 fps | 95.5% |
| Hodgdon H414 | <<locked>> | 94% | 47,950 psi | 75% | 3048 fps | 95.4% |
| Hodgdon H4895 | <<locked>> | 80% | 43,932 psi | 69% | 2910 fps | 98.8% |
| Hodgdon Hybrid 100V | <<locked>> | 86% | 31,618 psi | 50% | 2648 fps | 95% |
| Hodgdon LEVERevolution | <<locked>> | 80% | 39,972 psi | 63% | 2874 fps | 98.4% |
| Hodgdon Superformance | <<locked>> | 96% | 51,677 psi | 81% | 3136 fps | 95.7% |
| Hodgdon TrailBoss | <<locked>> | 80% | 26,295 psi | 41% | 1703 fps | 100% |
| Hodgdon VARGET | <<locked>> | 80% | 42,206 psi | 66% | 2854 fps | 98.4% |
| IMR 3031 | <<locked>> | 80% | 43,526 psi | 68% | 2913 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 39,117 psi | 61% | 2776 fps | 96.8% |
| IMR 4166 Enduron | <<locked>> | 84% | 46,963 psi | 74% | 2907 fps | 95% |
| IMR 4198 | <<locked>> | 80% | 53,258 psi | 83% | 2940 fps | 100% |
| IMR 4350 | <<locked>> | 98% | 51,285 psi | 80% | 3038 fps | 95.5% |
| IMR 4451 Enduron | <<locked>> | 92% | 50,038 psi | 78% | 2999 fps | 95.7% |
| IMR 4831 | <<locked>> | 90% | 37,478 psi | 59% | 2808 fps | 95.4% |
| IMR 4895 | <<locked>> | 80% | 40,248 psi | 63% | 2854 fps | 97.6% |
| IMR 8208 XBR | <<locked>> | 80% | 45,600 psi | 71% | 2910 fps | 99.4% |
| Lovex D073.5 | <<locked>> | 80% | 51,996 psi | 81% | 3012 fps | 100% |
| Lovex D073.6 | <<locked>> | 80% | 42,583 psi | 67% | 2877 fps | 99.8% |
| Lovex S060 | <<locked>> | 80% | 43,714 psi | 69% | 2835 fps | 98.3% |
| Lovex S062 | <<locked>> | 80% | 38,783 psi | 61% | 2776 fps | 98.4% |
| Lovex S065 | <<locked>> | 90% | 43,613 psi | 68% | 2877 fps | 95.7% |
| Lovex S070 | <<locked>> | 94% | 46,760 psi | 73% | 2963 fps | 95.3% |
| Norma 201 | <<locked>> | 80% | 42,786 psi | 67% | 2851 fps | 99.1% |
| Norma 202 | <<locked>> | 80% | 43,047 psi | 67% | 2864 fps | 100% |
| Norma 203B | <<locked>> | 80% | 38,711 psi | 61% | 2808 fps | 97.2% |
| Norma URP | <<locked>> | 90% | 39,218 psi | 61% | 2864 fps | 95.8% |
| Ramshot Big Game | <<locked>> | 80% | 38,276 psi | 60% | 2822 fps | 96.8% |
| Ramshot Hunter | <<locked>> | 94% | 43,642 psi | 68% | 2966 fps | 95.1% |
| Ramshot TAC | <<locked>> | 80% | 45,542 psi | 71% | 2907 fps | 96.4% |
| Ramshot Wild Boar | <<locked>> | 80% | 45,107 psi | 71% | 2933 fps | 98.5% |
| Ramshot X-Terminator | <<locked>> | 80% | 49,487 psi | 78% | 2966 fps | 99.1% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 26,556 psi | 42% | 1745 fps | 100% |
| ReloadSwiss RS 40 | <<locked>> | 80% | 51,329 psi | 80% | 3005 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 86% | 45,919 psi | 72% | 2923 fps | 95.5% |
| ReloadSwiss RS 52 | <<locked>> | 80% | 41,205 psi | 65% | 2933 fps | 97.2% |
| ReloadSwiss RS 60 | 34.9 gr | 80% | 33,794 psi | 53% | 2782 fps | 98.3% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 38,841 psi | 61% | 2881 fps | 95.4% |
| ReloadSwiss RS 70 | <<locked>> | 92% | 41,742 psi | 65% | 2956 fps | 95.4% |
| Rottweil R 901 | <<locked>> | 80% | 46,818 psi | 73% | 2904 fps | 100% |
| Rottweil R 902 | <<locked>> | 80% | 40,596 psi | 64% | 2795 fps | 98.7% |
| Rottweil R 903 | <<locked>> | 80% | 34,171 psi | 54% | 2697 fps | 96.5% |
| Rottweil R 907 | <<locked>> | 94% | 51,082 psi | 80% | 3015 fps | 95.4% |
| Shooters World Long Rifle | <<locked>> | 90% | 43,613 psi | 68% | 2877 fps | 95.7% |
| Shooters World Match Rifle | <<locked>> | 80% | 42,583 psi | 67% | 2877 fps | 99.8% |
| Shooters World Precision | <<locked>> | 80% | 38,783 psi | 61% | 2776 fps | 98.4% |
| Shooters World SW4350 | <<locked>> | 94% | 46,760 psi | 73% | 2963 fps | 95.3% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 35,041 psi | 55% | 2746 fps | 95.8% |
| SNPE Vectan SP 3 | <<locked>> | 80% | 53,954 psi | 85% | 3005 fps | 100% |
| SNPE Vectan SP 7 | <<locked>> | 80% | 44,077 psi | 69% | 2884 fps | 96.6% |
| SNPE Vectan SP 9 | <<locked>> | 80% | 42,119 psi | 66% | 2861 fps | 97.9% |
| SNPE Vectan Tubal 3000 | <<locked>> | 80% | 44,063 psi | 69% | 2805 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 36,593 psi | 57% | 2657 fps | 99.9% |
| SNPE Vectan Tubal 7000 | <<locked>> | 94% | 49,153 psi | 77% | 2930 fps | 95.6% |
| Somchem S321 | <<locked>> | 80% | 49,632 psi | 78% | 3002 fps | 99.9% |
| Somchem S335 | <<locked>> | 80% | 43,743 psi | 69% | 2808 fps | 100% |
| Somchem S341 | <<locked>> | 80% | 43,743 psi | 69% | 2884 fps | 98.2% |
| Somchem S355 | <<locked>> | 80% | 34,998 psi | 55% | 2703 fps | 96.5% |
| Somchem S365 | <<locked>> | 84% | 28,834 psi | 45% | 2621 fps | 95.2% |
| Vihtavuori N130 | <<locked>> | 80% | 49,748 psi | 78% | 2877 fps | 100% |
| Vihtavuori N133 | <<locked>> | 80% | 44,353 psi | 70% | 2802 fps | 100% |
| Vihtavuori N135 | <<locked>> | 80% | 40,016 psi | 63% | 2785 fps | 100% |
| Vihtavuori N140 | <<locked>> | 80% | 40,857 psi | 64% | 2792 fps | 100% |
| Vihtavuori N150 | <<locked>> | 80% | 33,344 psi | 52% | 2641 fps | 97.4% |
| Vihtavuori N160 | <<locked>> | 88% | 38,551 psi | 60% | 2812 fps | 95.5% |
| Vihtavuori N530 | <<locked>> | 80% | 45,847 psi | 72% | 2907 fps | 99.5% |
| Vihtavuori N540 | <<locked>> | 80% | 39,407 psi | 62% | 2779 fps | 99.7% |
| Vihtavuori N550 | <<locked>> | 90% | 40,379 psi | 63% | 2867 fps | 95.9% |
| Vihtavuori N555 | <<locked>> | 96% | 36,085 psi | 57% | 2841 fps | 95.7% |
| Winchester 6.5 StaBALL | <<locked>> | 82% | 31,720 psi | 50% | 2608 fps | 95.1% |
| Winchester 748 | <<locked>> | 80% | 45,440 psi | 71% | 2956 fps | 99.8% |
| Winchester 760 | <<locked>> | 94% | 47,950 psi | 75% | 3048 fps | 95.4% |
| Winchester StaBALL Match | <<locked>> | 80% | 41,481 psi | 65% | 2864 fps | 98.4% |
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 101 powders for 6 mm XC loaded with the .243 | 90gr | SUS-TAC HPPT. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 3,255 fps; across all powders the maximum-charge window runs from 1,906 fps to 3,255 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 55–90 %, leaving at least 10 % headroom. The 90.0 gr projectile in 0.243" calls for a 1:8.0 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. Alliant Reloder-17, ReloadSwiss RS 60, Alliant Power Pro 2000-MR rank at the top here: for 6 mm XC with the .243 | 90gr | SUS-TAC HPPT 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.