Load Specifications
Load data in caliber .243 Win. with .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride bullet and 83 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Norma MRP, Vihtavuori N560 and ReloadSwiss RS 70.
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 2700 | <<locked>> | 82% | 53,316 psi | 89% | 2638 fps | 98.9% |
| Accurate 3100 | <<locked>> | 98% | 51,532 psi | 86% | 2680 fps | 99.7% |
| Accurate 4064 | <<locked>> | 82% | 52,736 psi | 88% | 2625 fps | 100% |
| Accurate 4350 | <<locked>> | 90% | 53,563 psi | 89% | 2730 fps | 100% |
| Accurate MAGPRO | <<locked>> | 98% | 53,388 psi | 89% | 2812 fps | 96.6% |
| ADI AR 2208 | <<locked>> | 84% | 52,895 psi | 88% | 2657 fps | 100% |
| ADI AR 2209 | <<locked>> | 96% | 54,375 psi | 90% | 2769 fps | 98.7% |
| ADI AR 2213 | <<locked>> | 98% | 52,431 psi | 87% | 2766 fps | 97.3% |
| Alliant Reloder- TS 15.5 | <<locked>> | 84% | 53,795 psi | 89% | 2680 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 82% | 53,838 psi | 89% | 2700 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 92% | 54,143 psi | 90% | 2779 fps | 100% |
| Alliant Reloder-17 | <<locked>> | 86% | 51,851 psi | 86% | 2753 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 96% | 54,099 psi | 90% | 2762 fps | 98.7% |
| Alliant Reloder-22 | <<locked>> | 98% | 51,445 psi | 85% | 2766 fps | 98.5% |
| Alliant Reloder-23ᴾ | <<locked>> | 100% | 51,706 psi | 86% | 2743 fps | 100% |
| Alliant Reloder-25ᴾ | <<locked>> | 100% | 44,991 psi | 75% | 2684 fps | 99.7% |
| Alliant Reloder-26 | <<locked>> | 96% | 51,677 psi | 86% | 2825 fps | 100% |
| Bofors RP15ᴾ | <<locked>> | 100% | 50,299 psi | 84% | 2743 fps | 98.2% |
| Bofors RP3 | <<locked>> | 84% | 54,346 psi | 90% | 2690 fps | 100% |
| Bofors RP5 | <<locked>> | 98% | 51,445 psi | 85% | 2766 fps | 98.5% |
| Bofors RP7 | <<locked>> | 88% | 54,056 psi | 90% | 2684 fps | 99.2% |
| Hodgdon H1000ᴾ | <<locked>> | 100% | 44,846 psi | 75% | 2621 fps | 96.2% |
| Hodgdon H380 | <<locked>> | 82% | 51,503 psi | 86% | 2664 fps | 100% |
| Hodgdon H414 | <<locked>> | 88% | 52,025 psi | 86% | 2723 fps | 99.4% |
| Hodgdon H4350 | <<locked>> | 86% | 51,953 psi | 86% | 2687 fps | 98.5% |
| Hodgdon H4831 | <<locked>> | 96% | 52,489 psi | 87% | 2713 fps | 96.7% |
| Hodgdon H4831 SC | <<locked>> | 96% | 51,242 psi | 85% | 2694 fps | 96.4% |
| Hodgdon Hybrid 100V | <<locked>> | 92% | 51,300 psi | 85% | 2661 fps | 100% |
| Hodgdon Retumboᴾ | <<locked>> | 100% | 44,179 psi | 73% | 2720 fps | 97.7% |
| Hodgdon Superformance | <<locked>> | 88% | 51,938 psi | 86% | 2756 fps | 99.3% |
| Hodgdon TrailBossᴾ | <<locked>> | 100% | 36,303 psi | 60% | 1693 fps | 100% |
| IMR 4064 | <<locked>> | 82% | 52,431 psi | 87% | 2641 fps | 100% |
| IMR 4350 | <<locked>> | 90% | 51,561 psi | 86% | 2664 fps | 98.9% |
| IMR 4451 Enduron | <<locked>> | 86% | 52,286 psi | 87% | 2661 fps | 99.2% |
| IMR 4831 | <<locked>> | 92% | 54,027 psi | 90% | 2720 fps | 100% |
| IMR 4955 Enduron | <<locked>> | 96% | 53,911 psi | 90% | 2700 fps | 97.1% |
| IMR 7828 SSCᴾ | <<locked>> | 100% | 53,069 psi | 88% | 2789 fps | 97.6% |
| Lovex S062 | <<locked>> | 82% | 52,765 psi | 88% | 2638 fps | 100% |
| Lovex S065 | <<locked>> | 88% | 52,170 psi | 87% | 2654 fps | 99.8% |
| Lovex S070 | <<locked>> | 90% | 53,606 psi | 89% | 2697 fps | 99.6% |
| Lovex S071ᴾ | <<locked>> | 100% | 45,701 psi | 76% | 2592 fps | 99.2% |
| Norma 203B | <<locked>> | 82% | 53,142 psi | 88% | 2687 fps | 100% |
| Norma 204 | <<locked>> | 90% | 52,228 psi | 87% | 2713 fps | 98.2% |
| Norma MRP | <<locked>> | 98% | 54,418 psi | 90% | 2838 fps | 99.7% |
| Norma URP | <<locked>> | 90% | 52,402 psi | 87% | 2717 fps | 100% |
| Ramshot Big Game | <<locked>> | 82% | 53,940 psi | 90% | 2710 fps | 100% |
| Ramshot Grandᴾ | <<locked>> | 100% | 53,548 psi | 89% | 2805 fps | 98% |
| Ramshot Hunter | <<locked>> | 90% | 51,343 psi | 85% | 2717 fps | 99.7% |
| Ramshot Magnumᴾ | <<locked>> | 100% | 47,921 psi | 80% | 2687 fps | 98.4% |
| ReloadSwiss RS 14ᴾ | <<locked>> | 100% | 37,057 psi | 62% | 1732 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 82% | 51,213 psi | 85% | 2644 fps | 99.5% |
| ReloadSwiss RS 60 | <<locked>> | 84% | 51,285 psi | 85% | 2743 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 90% | 53,258 psi | 88% | 2746 fps | 100% |
| ReloadSwiss RS 70 | <<locked>> | 90% | 51,880 psi | 86% | 2776 fps | 100% |
| ReloadSwiss RS 76ᴾ | <<locked>> | 100% | 44,179 psi | 73% | 2713 fps | 98.7% |
| Rottweil R 902 | <<locked>> | 82% | 54,273 psi | 90% | 2641 fps | 100% |
| Rottweil R 903 | <<locked>> | 84% | 51,329 psi | 85% | 2644 fps | 100% |
| Rottweil R 904 | <<locked>> | 94% | 52,605 psi | 87% | 2687 fps | 97.4% |
| Rottweil R 905 | <<locked>> | 96% | 52,939 psi | 88% | 2743 fps | 98.6% |
| Rottweil R 907 | <<locked>> | 88% | 54,056 psi | 90% | 2684 fps | 99.2% |
| Shooters World Long Rifle | <<locked>> | 88% | 52,170 psi | 87% | 2654 fps | 99.8% |
| Shooters World Precision | <<locked>> | 82% | 52,765 psi | 88% | 2638 fps | 100% |
| Shooters World SW4350 | <<locked>> | 90% | 53,606 psi | 89% | 2697 fps | 99.6% |
| SNPE Vectan SP 11 | <<locked>> | 84% | 52,504 psi | 87% | 2697 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 84% | 52,170 psi | 87% | 2536 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 88% | 51,721 psi | 86% | 2608 fps | 99.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 96% | 52,475 psi | 87% | 2736 fps | 98.5% |
| Somchem S355 | <<locked>> | 84% | 51,329 psi | 85% | 2641 fps | 100% |
| Somchem S361 | <<locked>> | 94% | 54,360 psi | 90% | 2680 fps | 96.9% |
| Somchem S365 | <<locked>> | 92% | 51,517 psi | 86% | 2713 fps | 100% |
| Somchem S385 | <<locked>> | 96% | 53,853 psi | 89% | 2723 fps | 99.2% |
| Vihtavuori N150 | <<locked>> | 86% | 52,330 psi | 87% | 2615 fps | 100% |
| Vihtavuori N160 | <<locked>> | 90% | 54,346 psi | 90% | 2707 fps | 100% |
| Vihtavuori N165ᴾ | <<locked>> | 100% | 53,287 psi | 89% | 2700 fps | 98.9% |
| Vihtavuori N540 | <<locked>> | 82% | 53,447 psi | 89% | 2618 fps | 100% |
| Vihtavuori N550 | <<locked>> | 90% | 53,388 psi | 89% | 2713 fps | 100% |
| Vihtavuori N555 | <<locked>> | 98% | 54,404 psi | 90% | 2772 fps | 100% |
| Vihtavuori N560 | <<locked>> | 96% | 51,039 psi | 85% | 2772 fps | 96.8% |
| Vihtavuori N565ᴾ | <<locked>> | 100% | 46,702 psi | 78% | 2687 fps | 96% |
| Winchester 6.5 StaBALL | <<locked>> | 90% | 53,882 psi | 90% | 2671 fps | 100% |
| Winchester 760 | <<locked>> | 88% | 52,417 psi | 87% | 2730 fps | 99.4% |
| Winchester StaBALL HDᴾ | <<locked>> | 100% | 47,152 psi | 78% | 2812 fps | 100% |
| Winchester Supreme 780 | <<locked>> | 98% | 54,056 psi | 90% | 2717 fps | 98.6% |
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 2700 | <<locked>> | 80% | 49,879 psi | 83% | 2585 fps | 98.5% |
| Accurate 3100 | <<locked>> | 84% | 32,111 psi | 53% | 2326 fps | 95.7% |
| Accurate 4064 | <<locked>> | 80% | 49,603 psi | 82% | 2582 fps | 100% |
| Accurate 4350 | <<locked>> | 80% | 38,101 psi | 63% | 2474 fps | 98.9% |
| Accurate MAGPRO | <<locked>> | 96% | 49,705 psi | 83% | 2753 fps | 95.8% |
| ADI AR 2208 | <<locked>> | 80% | 46,905 psi | 78% | 2569 fps | 100% |
| ADI AR 2209 | <<locked>> | 86% | 39,291 psi | 65% | 2503 fps | 95.1% |
| ADI AR 2213 | <<locked>> | 94% | 45,556 psi | 76% | 2648 fps | 95.5% |
| Alliant Reloder- TS 15.5 | <<locked>> | 80% | 47,311 psi | 79% | 2585 fps | 100% |
| Alliant Reloder-15 | <<locked>> | 80% | 50,705 psi | 84% | 2654 fps | 100% |
| Alliant Reloder-16 | <<locked>> | 80% | 37,014 psi | 61% | 2484 fps | 99% |
| Alliant Reloder-17 | <<locked>> | 80% | 41,858 psi | 70% | 2592 fps | 100% |
| Alliant Reloder-19 | <<locked>> | 86% | 39,015 psi | 65% | 2497 fps | 95.1% |
| Alliant Reloder-22 | <<locked>> | 90% | 39,189 psi | 65% | 2543 fps | 95.4% |
| Alliant Reloder-23 | <<locked>> | 80% | 27,079 psi | 45% | 2254 fps | 97.2% |
| Alliant Reloder-25 | <<locked>> | 88% | 30,879 psi | 51% | 2365 fps | 95.6% |
| Alliant Reloder-26 | <<locked>> | 80% | 28,906 psi | 48% | 2352 fps | 95.6% |
| Bofors RP15 | <<locked>> | 92% | 38,667 psi | 64% | 2530 fps | 95% |
| Bofors RP3 | <<locked>> | 80% | 47,630 psi | 79% | 2595 fps | 100% |
| Bofors RP5 | <<locked>> | 90% | 39,189 psi | 65% | 2543 fps | 95.4% |
| Bofors RP7 | <<locked>> | 80% | 41,843 psi | 70% | 2480 fps | 97% |
| Hodgdon H1000 | <<locked>> | 98% | 41,814 psi | 69% | 2566 fps | 95.2% |
| Hodgdon H380 | <<locked>> | 80% | 48,051 psi | 80% | 2608 fps | 99.8% |
| Hodgdon H414 | <<locked>> | 80% | 39,755 psi | 66% | 2510 fps | 97.1% |
| Hodgdon H4350 | <<locked>> | 80% | 42,714 psi | 71% | 2530 fps | 96.6% |
| Hodgdon H4831 | <<locked>> | 94% | 48,892 psi | 81% | 2654 fps | 95.8% |
| Hodgdon H4831 SC | <<locked>> | 94% | 47,776 psi | 79% | 2638 fps | 95.5% |
| Hodgdon Hybrid 100V | <<locked>> | 80% | 34,345 psi | 57% | 2375 fps | 99.3% |
| Hodgdon Retumbo | <<locked>> | 96% | 38,841 psi | 65% | 2598 fps | 95.7% |
| Hodgdon Superformance | <<locked>> | 80% | 39,015 psi | 65% | 2526 fps | 96.6% |
| Hodgdon TrailBoss | <<locked>> | 80% | 27,311 psi | 45% | 1519 fps | 100% |
| IMR 4064 | <<locked>> | 80% | 49,327 psi | 82% | 2595 fps | 100% |
| IMR 4350 | <<locked>> | 80% | 37,652 psi | 63% | 2415 fps | 95.8% |
| IMR 4451 Enduron | <<locked>> | 80% | 43,178 psi | 72% | 2507 fps | 97.8% |
| IMR 4831 | <<locked>> | 80% | 36,376 psi | 60% | 2425 fps | 98.6% |
| IMR 4955 Enduron | <<locked>> | 92% | 47,514 psi | 79% | 2598 fps | 95.6% |
| IMR 7828 SSC | <<locked>> | 94% | 43,656 psi | 73% | 2621 fps | 95.1% |
| Lovex S062 | <<locked>> | 80% | 49,327 psi | 82% | 2589 fps | 100% |
| Lovex S065 | <<locked>> | 80% | 40,814 psi | 68% | 2464 fps | 98.4% |
| Lovex S070 | <<locked>> | 80% | 39,146 psi | 65% | 2448 fps | 97.1% |
| Lovex S071 | <<locked>> | 88% | 31,096 psi | 52% | 2303 fps | 95.2% |
| Norma 203B | <<locked>> | 80% | 50,038 psi | 83% | 2641 fps | 100% |
| Norma 204 | <<locked>> | 82% | 39,479 psi | 66% | 2487 fps | 95% |
| Norma MRP | 38.2 gr | 86% | 35,926 psi | 60% | 2500 fps | 95.8% |
| Norma URP | <<locked>> | 80% | 37,753 psi | 63% | 2464 fps | 98.8% |
| Ramshot Big Game | <<locked>> | 80% | 50,372 psi | 84% | 2661 fps | 100% |
| Ramshot Grand | <<locked>> | 94% | 43,352 psi | 72% | 2628 fps | 95.4% |
| Ramshot Hunter | <<locked>> | 80% | 36,680 psi | 61% | 2454 fps | 97.1% |
| Ramshot Magnum | <<locked>> | 94% | 38,508 psi | 64% | 2510 fps | 95.9% |
| ReloadSwiss RS 14 | <<locked>> | 80% | 27,746 psi | 46% | 1555 fps | 100% |
| ReloadSwiss RS 50 | <<locked>> | 80% | 47,935 psi | 80% | 2592 fps | 99.1% |
| ReloadSwiss RS 60 | <<locked>> | 80% | 44,469 psi | 74% | 2641 fps | 100% |
| ReloadSwiss RS 62 | <<locked>> | 80% | 37,782 psi | 63% | 2487 fps | 98.7% |
| ReloadSwiss RS 70 | 36.3 gr | 80% | 36,651 psi | 61% | 2493 fps | 98.2% |
| ReloadSwiss RS 76 | <<locked>> | 94% | 35,911 psi | 60% | 2526 fps | 95.7% |
| Rottweil R 902 | <<locked>> | 80% | 51,126 psi | 85% | 2598 fps | 100% |
| Rottweil R 903 | <<locked>> | 80% | 44,991 psi | 75% | 2549 fps | 100% |
| Rottweil R 904 | <<locked>> | 88% | 43,439 psi | 72% | 2533 fps | 95.1% |
| Rottweil R 905 | <<locked>> | 86% | 38,000 psi | 63% | 2477 fps | 95% |
| Rottweil R 907 | <<locked>> | 80% | 41,843 psi | 70% | 2480 fps | 97% |
| Shooters World Long Rifle | <<locked>> | 80% | 40,814 psi | 68% | 2464 fps | 98.4% |
| Shooters World Precision | <<locked>> | 80% | 49,327 psi | 82% | 2589 fps | 100% |
| Shooters World SW4350 | <<locked>> | 80% | 39,146 psi | 65% | 2448 fps | 97.1% |
| SNPE Vectan SP 11 | <<locked>> | 80% | 46,166 psi | 77% | 2598 fps | 100% |
| SNPE Vectan Tubal 5000 | <<locked>> | 80% | 46,064 psi | 77% | 2454 fps | 100% |
| SNPE Vectan Tubal 7000 | <<locked>> | 80% | 39,929 psi | 66% | 2408 fps | 97.2% |
| SNPE Vectan Tubal 8000 | <<locked>> | 88% | 40,422 psi | 67% | 2530 fps | 95.8% |
| Somchem S355 | <<locked>> | 80% | 45,165 psi | 75% | 2546 fps | 100% |
| Somchem S361 | <<locked>> | 90% | 47,616 psi | 79% | 2575 fps | 95.4% |
| Somchem S365 | <<locked>> | 80% | 34,258 psi | 57% | 2425 fps | 99.9% |
| Somchem S385 | <<locked>> | 84% | 36,158 psi | 60% | 2411 fps | 95.3% |
| Vihtavuori N150 | <<locked>> | 80% | 43,207 psi | 72% | 2480 fps | 100% |
| Vihtavuori N160 | <<locked>> | 80% | 39,247 psi | 65% | 2464 fps | 99% |
| Vihtavuori N165 | <<locked>> | 90% | 38,087 psi | 63% | 2444 fps | 95.6% |
| Vihtavuori N540 | <<locked>> | 80% | 49,980 psi | 83% | 2572 fps | 100% |
| Vihtavuori N550 | <<locked>> | 80% | 38,624 psi | 64% | 2464 fps | 98.8% |
| Vihtavuori N555 | <<locked>> | 80% | 29,936 psi | 50% | 2326 fps | 97.2% |
| Vihtavuori N560 | 40.9 gr | 92% | 44,759 psi | 74% | 2661 fps | 95.1% |
| Vihtavuori N565 | <<locked>> | 98% | 43,497 psi | 72% | 2631 fps | 95.1% |
| Winchester 6.5 StaBALL | <<locked>> | 80% | 38,130 psi | 63% | 2428 fps | 99.9% |
| Winchester 760 | <<locked>> | 80% | 40,059 psi | 67% | 2516 fps | 97.2% |
| Winchester StaBALL HD | <<locked>> | 80% | 24,047 psi | 40% | 2228 fps | 96.1% |
| Winchester Supreme 780 | <<locked>> | 90% | 40,843 psi | 68% | 2500 fps | 95.7% |
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 83 powders for .243 Win. loaded with the .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride. Norma MRP delivers the highest muzzle velocity at 2,838 fps; across all powders the maximum-charge window runs from 1,693 fps to 2,838 fps. Alliant Reloder-23 gives the best case fill at 100 %, and 83 of the 83 powders fall inside the usable 80–100 % fill window.
Relative to the caliber's maximum pressure (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 115.0 gr projectile in 0.243" calls for a 1:7.5 twist; slower twists will usually not stabilise this weight. Alliant Reloder-23, Alliant Reloder-25, Bofors RP15 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. Norma MRP, Vihtavuori N560, ReloadSwiss RS 70 rank at the top here: for .243 Win. with the .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride 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.