Load data for .300 RCM + .308 | 200gr | Peregrine Bushmaster (VRG-3)

.300 RCM cartridge drawing
Peregrine logo

Load Specifications

Bullet Manufacturer:Peregrine
Bullet Weight:200 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.09"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:75 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:63,817 psi
Recommended Twist Rate:1:12.0

Load data in caliber .300 RCM with .308 | 200gr | Peregrine Bushmaster (VRG-3) bullet and 111 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Hodgdon Superformance and Alliant Reloder-17.

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"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>82%54,621 psi86%2477 fps100%
Accurate 2495<<locked>>88%57,043 psi89%2546 fps100%
Accurate 2520<<locked>>82%55,216 psi87%2569 fps100%
Accurate 2700<<locked>>88%56,072 psi88%2572 fps98.6%
Accurate 3100ᴾ<<locked>>100%43,932 psi69%2487 fps98.2%
Accurate 4064<<locked>>90%57,043 psi89%2595 fps100%
Accurate 4350<<locked>>98%57,609 psi90%2697 fps100%
ADI AR 2206H<<locked>>86%57,392 psi90%2631 fps100%
ADI AR 2208<<locked>>90%55,042 psi86%2589 fps100%
ADI AR 2209ᴾ<<locked>>100%51,967 psi81%2631 fps97.2%
ADI Benchmark 8208<<locked>>84%56,463 psi88%2582 fps100%
Alliant AR-Comp<<locked>>82%53,940 psi85%2503 fps100%
Alliant Power Pro 2000-MR<<locked>>88%57,609 psi90%2756 fps100%
Alliant Power Pro Varmintᴾ<<locked>>100%51,605 psi81%2628 fps97.3%
Alliant Power Pro Varmintᴾ<<locked>>100%51,605 psi81%2628 fps97.3%
Alliant Reloder- TS 15.5<<locked>>90%55,230 psi87%2608 fps100%
Alliant Reloder-15<<locked>>88%55,753 psi87%2628 fps100%
Alliant Reloder-16<<locked>>98%55,042 psi86%2700 fps100%
Alliant Reloder-17<<locked>>94%56,246 psi88%2726 fps100%
Alliant Reloder-19ᴾ<<locked>>100%50,836 psi80%2618 fps97.2%
Alliant Reloder-22ᴾ<<locked>>100%44,585 psi70%2559 fps95.9%
Alliant Reloder-23ᴾ<<locked>>100%41,945 psi66%2516 fps99.9%
Alliant Reloder-25ᴾ<<locked>>100%36,738 psi58%2425 fps96.8%
Alliant Reloder-26ᴾ<<locked>>100%47,210 psi74%2680 fps99.7%
Baschieri & Pellagri 107<<locked>>86%57,392 psi90%2651 fps100%
Bofors RP3<<locked>>90%55,753 psi87%2621 fps100%
Bofors RP5ᴾ<<locked>>100%44,585 psi70%2559 fps95.9%
Bofors RP7<<locked>>94%55,521 psi87%2602 fps98.7%
Hodgdon Benchmark<<locked>>82%54,534 psi85%2516 fps100%
Hodgdon BL-C2<<locked>>84%55,738 psi87%2608 fps100%
Hodgdon H380<<locked>>90%56,724 psi89%2641 fps100%
Hodgdon H414<<locked>>96%56,724 psi89%2697 fps99.3%
Hodgdon H4350<<locked>>94%56,942 psi89%2657 fps98.4%
Hodgdon H4895<<locked>>84%54,636 psi86%2595 fps100%
Hodgdon Hybrid 100Vᴾ<<locked>>100%54,766 psi86%2625 fps100%
Hodgdon LEVERevolution<<locked>>86%54,070 psi85%2625 fps100%
Hodgdon Superformance<<locked>>96%57,290 psi90%2740 fps99.2%
Hodgdon TrailBossᴾ<<locked>>100%35,853 psi56%1568 fps100%
Hodgdon VARGET<<locked>>86%55,593 psi87%2592 fps100%
IMR 3031<<locked>>84%54,781 psi86%2569 fps100%
IMR 4064<<locked>>88%54,607 psi86%2572 fps100%
IMR 4166 Enduron<<locked>>86%54,215 psi85%2556 fps98.9%
IMR 4350<<locked>>98%56,275 psi88%2635 fps98.8%
IMR 4451 Enduron<<locked>>94%57,624 psi90%2631 fps99.2%
IMR 4831<<locked>>98%54,259 psi85%2638 fps100%
IMR 4895<<locked>>88%57,203 psi90%2654 fps100%
IMR 8208 XBR<<locked>>84%56,463 psi88%2582 fps100%
Lovex D073.6<<locked>>86%57,276 psi90%2602 fps100%
Lovex S060<<locked>>86%56,840 psi89%2562 fps100%
Lovex S062<<locked>>90%57,725 psi90%2608 fps100%
Lovex S065<<locked>>96%56,971 psi89%2625 fps99.8%
Lovex S070<<locked>>96%54,534 psi85%2615 fps99.1%
Lovex S071ᴾ<<locked>>100%36,448 psi57%2349 fps96.3%
Norma 201<<locked>>86%55,854 psi88%2572 fps100%
Norma 202<<locked>>86%56,710 psi89%2572 fps100%
Norma 203B<<locked>>88%54,940 psi86%2615 fps100%
Norma 204<<locked>>98%56,913 psi89%2684 fps98%
Norma MRPᴾ<<locked>>100%47,021 psi74%2638 fps97.9%
Norma URP<<locked>>98%56,550 psi89%2684 fps100%
Ramshot Big Game<<locked>>88%55,579 psi87%2641 fps100%
Ramshot Hunter<<locked>>98%55,056 psi86%2684 fps99.6%
Ramshot TAC<<locked>>84%56,565 psi89%2612 fps99.8%
Ramshot Wild Boar<<locked>>84%56,376 psi88%2621 fps100%
Ramshot X-Terminator<<locked>>82%57,029 psi89%2585 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%36,172 psi57%1604 fps100%
ReloadSwiss RS 50<<locked>>90%56,739 psi89%2625 fps99.5%
ReloadSwiss RS 52<<locked>>86%56,405 psi88%2690 fps100%
ReloadSwiss RS 60<<locked>>92%56,014 psi88%2723 fps100%
ReloadSwiss RS 62<<locked>>98%57,334 psi90%2720 fps100%
ReloadSwiss RS 70<<locked>>98%56,623 psi89%2753 fps100%
Rottweil R 901<<locked>>84%56,666 psi89%2549 fps100%
Rottweil R 902<<locked>>88%56,391 psi88%2572 fps100%
Rottweil R 903<<locked>>92%55,622 psi87%2615 fps100%
Rottweil R 904ᴾ<<locked>>100%53,766 psi84%2605 fps96.5%
Rottweil R 905ᴾ<<locked>>100%49,734 psi78%2602 fps97.2%
Rottweil R 907<<locked>>94%55,521 psi87%2602 fps98.7%
Shooters World Long Rifle<<locked>>96%56,971 psi89%2625 fps99.8%
Shooters World Match Rifle<<locked>>86%57,276 psi90%2602 fps100%
Shooters World Precision<<locked>>90%57,725 psi90%2608 fps100%
Shooters World SW4350<<locked>>96%54,534 psi85%2615 fps99.1%
SNPE Vectan SP 11<<locked>>92%57,508 psi90%2674 fps100%
SNPE Vectan SP 7<<locked>>84%54,969 psi86%2589 fps99.9%
SNPE Vectan SP 9<<locked>>86%55,724 psi87%2605 fps100%
SNPE Vectan Tubal 3000<<locked>>86%57,464 psi90%2513 fps100%
SNPE Vectan Tubal 5000<<locked>>90%54,462 psi85%2474 fps100%
SNPE Vectan Tubal 7000<<locked>>96%57,116 psi90%2582 fps99.2%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%49,255 psi77%2598 fps97%
Somchem S321<<locked>>82%57,508 psi90%2612 fps100%
Somchem S335<<locked>>86%56,681 psi89%2510 fps100%
Somchem S341<<locked>>84%54,824 psi86%2579 fps100%
Somchem S355<<locked>>92%55,796 psi87%2608 fps100%
Somchem S361ᴾ<<locked>>100%55,608 psi87%2602 fps95.9%
Somchem S365ᴾ<<locked>>100%54,592 psi86%2680 fps100%
Somchem S385ᴾ<<locked>>100%50,459 psi79%2585 fps98%
Vihtavuori N130<<locked>>82%57,072 psi89%2470 fps100%
Vihtavuori N133<<locked>>84%54,418 psi85%2454 fps100%
Vihtavuori N135<<locked>>88%56,623 psi89%2533 fps100%
Vihtavuori N140<<locked>>88%57,246 psi90%2552 fps100%
Vihtavuori N150<<locked>>94%57,551 psi90%2592 fps100%
Vihtavuori N160<<locked>>96%55,230 psi87%2628 fps100%
Vihtavuori N165ᴾ<<locked>>100%43,279 psi68%2454 fps95.9%
Vihtavuori N530<<locked>>84%56,855 psi89%2579 fps100%
Vihtavuori N540<<locked>>88%55,390 psi87%2556 fps100%
Vihtavuori N550<<locked>>96%54,143 psi85%2635 fps99.9%
Vihtavuori N555ᴾ<<locked>>100%46,441 psi73%2582 fps99.9%
Winchester 6.5 StaBALL<<locked>>96%55,390 psi87%2608 fps100%
Winchester 748<<locked>>84%57,029 psi89%2625 fps100%
Winchester 760<<locked>>96%56,724 psi89%2697 fps99.3%
Winchester StaBALL HDᴾ<<locked>>100%37,333 psi59%2539 fps100%
Winchester StaBALL Match<<locked>>86%55,738 psi87%2615 fps100%
Winchester Supreme 780ᴾ<<locked>>100%47,384 psi74%2526 fps96.2%

Recommended = one of the top powders for this cartridge and bullet combination.

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%51,329 psi80%2434 fps100%
Accurate 2495<<locked>>80%43,656 psi68%2372 fps100%
Accurate 2520<<locked>>80%51,634 psi81%2523 fps100%
Accurate 2700<<locked>>80%42,902 psi67%2365 fps96%
Accurate 3100<<locked>>92%33,315 psi52%2283 fps95.1%
Accurate 4064<<locked>>80%41,365 psi65%2375 fps100%
Accurate 4350<<locked>>80%30,560 psi48%2231 fps96%
ADI AR 2206H<<locked>>80%47,398 psi74%2487 fps100%
ADI AR 2208<<locked>>80%40,437 psi63%2356 fps99.1%
ADI AR 2209<<locked>>96%45,629 psi72%2526 fps95.7%
ADI Benchmark 8208<<locked>>80%49,545 psi78%2487 fps100%
Alliant AR-Comp<<locked>>80%50,560 psi79%2464 fps100%
Alliant Power Pro 2000-MR<<locked>>80%43,627 psi68%2539 fps99.6%
Alliant Power Pro Varmint<<locked>>94%42,699 psi67%2477 fps95.1%
Alliant Power Pro Varmint<<locked>>94%42,699 psi67%2477 fps95.1%
Alliant Reloder- TS 15.5<<locked>>80%40,219 psi63%2375 fps99.8%
Alliant Reloder-15<<locked>>80%42,989 psi67%2434 fps99.5%
Alliant Reloder-16<<locked>>80%31,053 psi49%2247 fps96.3%
Alliant Reloder-1748.7 gr80%34,708 psi54%2362 fps99%
Alliant Reloder-19<<locked>>94%42,163 psi66%2467 fps95%
Alliant Reloder-22<<locked>>98%41,669 psi65%2507 fps95%
Alliant Reloder-23<<locked>>84%25,280 psi40%2116 fps95%
Alliant Reloder-25<<locked>>98%34,592 psi54%2372 fps95.9%
Alliant Reloder-26<<locked>>88%30,676 psi48%2323 fps95.2%
Baschieri & Pellagri 107<<locked>>80%47,007 psi74%2503 fps99.7%
Bofors RP3<<locked>>80%39,726 psi62%2379 fps99.8%
Bofors RP5<<locked>>98%41,669 psi65%2507 fps95%
Bofors RP7<<locked>>84%40,524 psi64%2359 fps95.7%
Hodgdon Benchmark<<locked>>80%51,140 psi80%2470 fps100%
Hodgdon BL-C2<<locked>>80%48,820 psi77%2516 fps100%
Hodgdon H380<<locked>>80%40,509 psi63%2385 fps98.4%
Hodgdon H414<<locked>>84%37,811 psi59%2385 fps95.6%
Hodgdon H4350<<locked>>84%41,394 psi65%2408 fps95.1%
Hodgdon H4895<<locked>>80%47,877 psi75%2497 fps100%
Hodgdon Hybrid 100V<<locked>>80%28,456 psi45%2156 fps97%
Hodgdon LEVERevolution<<locked>>80%44,193 psi69%2480 fps100%
Hodgdon Superformance55.3 gr86%39,755 psi62%2448 fps95.6%
Hodgdon TrailBoss<<locked>>80%26,513 psi42%1398 fps100%
Hodgdon VARGET<<locked>>80%46,079 psi72%2454 fps100%
IMR 3031<<locked>>80%48,182 psi76%2480 fps100%
IMR 4064<<locked>>80%42,496 psi67%2385 fps99.5%
IMR 4166 Enduron<<locked>>80%44,860 psi70%2408 fps97.3%
IMR 4350<<locked>>86%38,406 psi60%2339 fps95%
IMR 4451 Enduron<<locked>>80%37,405 psi59%2293 fps95.2%
IMR 4831<<locked>>80%29,820 psi47%2195 fps95.8%
IMR 4895<<locked>>80%44,106 psi69%2461 fps99.8%
IMR 8208 XBR<<locked>>80%49,545 psi78%2487 fps100%
Lovex D073.6<<locked>>80%46,746 psi73%2464 fps100%
Lovex S060<<locked>>80%47,326 psi74%2428 fps100%
Lovex S062<<locked>>80%42,380 psi66%2385 fps100%
Lovex S065<<locked>>80%34,621 psi54%2244 fps95.9%
Lovex S070<<locked>>84%37,275 psi58%2320 fps95.6%
Lovex S071<<locked>>98%34,113 psi53%2300 fps95.5%
Norma 201<<locked>>80%46,296 psi73%2438 fps100%
Norma 202<<locked>>80%46,978 psi74%2444 fps100%
Norma 203B<<locked>>80%42,351 psi66%2425 fps99.7%
Norma 204<<locked>>90%43,323 psi68%2470 fps95.1%
Norma MRP<<locked>>94%38,145 psi60%2467 fps95.4%
Norma URP<<locked>>80%31,053 psi49%2234 fps96%
Ramshot Big Game<<locked>>80%42,351 psi66%2444 fps99.6%
Ramshot Hunter<<locked>>84%34,577 psi54%2323 fps95.4%
Ramshot TAC<<locked>>80%49,617 psi78%2510 fps99.3%
Ramshot Wild Boar<<locked>>80%49,211 psi77%2523 fps100%
Ramshot X-Terminator<<locked>>80%53,505 psi84%2539 fps100%
ReloadSwiss RS 14<<locked>>80%26,876 psi42%1430 fps100%
ReloadSwiss RS 50<<locked>>80%40,973 psi64%2372 fps97.1%
ReloadSwiss RS 52<<locked>>80%45,788 psi72%2536 fps99.8%
ReloadSwiss RS 60<<locked>>80%36,970 psi58%2418 fps100%
ReloadSwiss RS 62<<locked>>80%30,327 psi48%2244 fps95.5%
ReloadSwiss RS 7050.7 gr82%32,590 psi51%2306 fps95.5%
Rottweil R 901<<locked>>80%50,270 psi79%2464 fps100%
Rottweil R 902<<locked>>80%44,179 psi69%2398 fps100%
Rottweil R 903<<locked>>80%37,376 psi59%2329 fps99.5%
Rottweil R 904<<locked>>98%50,531 psi79%2556 fps95.8%
Rottweil R 905<<locked>>96%43,511 psi68%2500 fps95.6%
Rottweil R 907<<locked>>84%40,524 psi64%2359 fps95.7%
Shooters World Long Rifle<<locked>>80%34,621 psi54%2244 fps95.9%
Shooters World Match Rifle<<locked>>80%46,746 psi73%2464 fps100%
Shooters World Precision<<locked>>80%42,380 psi66%2385 fps100%
Shooters World SW4350<<locked>>84%37,275 psi58%2320 fps95.6%
SNPE Vectan SP 11<<locked>>80%38,508 psi60%2379 fps99.2%
SNPE Vectan SP 7<<locked>>80%47,863 psi75%2484 fps99.4%
SNPE Vectan SP 9<<locked>>80%45,847 psi72%2461 fps99.9%
SNPE Vectan Tubal 3000<<locked>>80%47,659 psi75%2385 fps100%
SNPE Vectan Tubal 5000<<locked>>80%39,842 psi62%2267 fps100%
SNPE Vectan Tubal 7000<<locked>>82%36,187 psi57%2244 fps95%
SNPE Vectan Tubal 8000<<locked>>96%43,105 psi68%2493 fps95.5%
Somchem S321<<locked>>80%53,925 psi85%2566 fps100%
Somchem S335<<locked>>80%47,195 psi74%2385 fps100%
Somchem S341<<locked>>80%47,819 psi75%2480 fps100%
Somchem S355<<locked>>80%38,159 psi60%2333 fps99.4%
Somchem S361<<locked>>98%52,054 psi82%2552 fps95.1%
Somchem S365<<locked>>80%27,818 psi44%2195 fps98.2%
Somchem S385<<locked>>92%38,696 psi61%2382 fps95.1%
Vihtavuori N130<<locked>>80%53,737 psi84%2431 fps100%
Vihtavuori N133<<locked>>80%48,153 psi75%2375 fps100%
Vihtavuori N135<<locked>>80%43,932 psi69%2369 fps100%
Vihtavuori N140<<locked>>80%44,382 psi70%2382 fps100%
Vihtavuori N150<<locked>>80%36,347 psi57%2274 fps99.8%
Vihtavuori N160<<locked>>80%32,416 psi51%2238 fps96.5%
Vihtavuori N165<<locked>>98%40,683 psi64%2408 fps95.2%
Vihtavuori N530<<locked>>80%49,719 psi78%2487 fps100%
Vihtavuori N540<<locked>>80%42,641 psi67%2375 fps100%
Vihtavuori N550<<locked>>80%31,836 psi50%2238 fps96.1%
Vihtavuori N555<<locked>>84%27,108 psi42%2182 fps95.2%
Winchester 6.5 StaBALL<<locked>>80%32,140 psi50%2218 fps98.4%
Winchester 748<<locked>>80%49,893 psi78%2533 fps100%
Winchester 760<<locked>>84%38,014 psi60%2388 fps95.7%
Winchester StaBALL HD<<locked>>88%25,135 psi39%2182 fps95.3%
Winchester StaBALL Match<<locked>>80%45,716 psi72%2470 fps100%
Winchester Supreme 780<<locked>>98%44,150 psi69%2470 fps95.4%

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.

<<locked>> you need an access license to unlock this data.

This overview compares 111 powders for .300 RCM loaded with the .308 | 200gr | Peregrine Bushmaster (VRG-3). Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,756 fps; across all powders the maximum-charge window runs from 1,568 fps to 2,756 fps. Accurate 3100 gives the best case fill at 100 %, and 111 of the 111 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 200.0 gr projectile in 0.308" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Power Pro Varmint 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 70, Hodgdon Superformance, Alliant Reloder-17 rank at the top here: for .300 RCM with the .308 | 200gr | Peregrine Bushmaster (VRG-3) 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.

← All load data