Load data for 7 x 65 R Brenneke + .284 | 166gr | Peregrine VRG-2

7 x 65 R Brenneke cartridge drawing
Peregrine logo

Load Specifications

Bullet Manufacturer:Peregrine
Bullet Weight:166 gr
Bullet Diameter:0.284"
Bullet Length:<<locked>>
Case Length (l3):2.56"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:66 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:55,114 psi
Recommended Twist Rate:1:11.0

Load data in caliber 7 x 65 R Brenneke with .284 | 166gr | Peregrine VRG-2 bullet and 80 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-26.

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: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>82%48,501 psi88%2474 fps100%
Accurate 2700<<locked>>86%48,341 psi88%2487 fps97.2%
Accurate 3100ᴾ<<locked>>100%46,137 psi84%2549 fps98.4%
Accurate 4064<<locked>>84%48,878 psi89%2523 fps100%
Accurate 4350<<locked>>92%48,660 psi88%2605 fps99.7%
ADI AR 2208<<locked>>84%47,282 psi86%2510 fps99.8%
ADI AR 2209<<locked>>96%47,224 psi86%2589 fps96.1%
Alliant Power Pro 2000-MR<<locked>>82%48,443 psi88%2654 fps99.9%
Alliant Power Pro Varmint<<locked>>96%47,137 psi86%2585 fps96.2%
Alliant Reloder- TS 15.5<<locked>>84%47,166 psi86%2526 fps100%
Alliant Reloder-15<<locked>>82%47,485 psi86%2543 fps99.8%
Alliant Reloder-16<<locked>>92%47,282 psi86%2615 fps99.8%
Alliant Reloder-17<<locked>>88%47,645 psi86%2638 fps100%
Alliant Reloder-19<<locked>>98%49,458 psi90%2628 fps96.8%
Alliant Reloder-22ᴾ<<locked>>100%46,543 psi84%2628 fps96.3%
Alliant Reloder-23ᴾ<<locked>>100%43,787 psi79%2579 fps100%
Alliant Reloder-25ᴾ<<locked>>100%38,261 psi69%2487 fps97.2%
Alliant Reloder-26ᴾ<<locked>>100%49,472 psi90%2746 fps99.8%
Bofors RP3<<locked>>84%47,239 psi86%2536 fps100%
Bofors RP5ᴾ<<locked>>100%46,543 psi84%2628 fps96.3%
Bofors RP7<<locked>>88%47,659 psi86%2516 fps97.3%
Hodgdon H380<<locked>>84%48,066 psi87%2549 fps99.4%
Hodgdon H414<<locked>>88%49,400 psi90%2625 fps98.3%
Hodgdon H4350<<locked>>90%47,152 psi86%2543 fps96.5%
Hodgdon Hybrid 100V<<locked>>94%47,050 psi85%2549 fps100%
Hodgdon LEVERevolution<<locked>>84%49,342 psi90%2592 fps100%
Hodgdon Superformance<<locked>>90%47,863 psi87%2631 fps97.7%
Hodgdon TrailBossᴾ<<locked>>100%35,911 psi65%1604 fps100%
Hodgdon VARGET<<locked>>84%49,777 psi90%2546 fps100%
IMR 3031<<locked>>82%48,588 psi88%2523 fps100%
IMR 4064<<locked>>86%49,168 psi89%2530 fps99.9%
IMR 4166 Enduron<<locked>>86%48,501 psi88%2507 fps98%
IMR 4350<<locked>>92%48,298 psi88%2549 fps97.5%
IMR 4451 Enduron<<locked>>88%49,487 psi90%2549 fps98.1%
IMR 4831<<locked>>96%47,268 psi86%2569 fps99.6%
IMR 4895<<locked>>82%48,718 psi88%2569 fps100%
Lovex S062<<locked>>84%49,371 psi90%2530 fps100%
Lovex S065<<locked>>90%48,805 psi89%2539 fps99%
Lovex S070<<locked>>92%49,835 psi90%2575 fps98.4%
Lovex S071ᴾ<<locked>>100%38,247 psi69%2408 fps96.6%
Norma 203B<<locked>>84%49,792 psi90%2575 fps100%
Norma 204<<locked>>92%48,254 psi88%2585 fps96.2%
Norma MRPᴾ<<locked>>100%49,153 psi89%2703 fps98.2%
Norma URP<<locked>>92%48,240 psi88%2598 fps99.7%
Ramshot Big Game<<locked>>82%46,963 psi85%2552 fps99.9%
Ramshot Hunter<<locked>>92%47,021 psi85%2595 fps98.6%
Ramshot Magnumᴾ<<locked>>100%45,063 psi82%2579 fps96.3%
ReloadSwiss RS 14ᴾ<<locked>>100%36,347 psi66%1640 fps100%
ReloadSwiss RS 50<<locked>>84%48,269 psi88%2533 fps98.4%
ReloadSwiss RS 60<<locked>>86%47,355 psi86%2635 fps100%
ReloadSwiss RS 62<<locked>>92%48,530 psi88%2628 fps99.6%
ReloadSwiss RS 70<<locked>>92%47,587 psi86%2648 fps99.4%
Rottweil R 902<<locked>>82%48,472 psi88%2497 fps100%
Rottweil R 903<<locked>>86%47,442 psi86%2533 fps100%
Rottweil R 905<<locked>>98%48,631 psi88%2618 fps96.8%
Rottweil R 907<<locked>>88%47,659 psi86%2516 fps97.3%
Shooters World Long Rifle<<locked>>90%48,805 psi89%2539 fps99%
Shooters World Precision<<locked>>84%49,371 psi90%2530 fps100%
Shooters World SW4350<<locked>>92%49,835 psi90%2575 fps98.4%
SNPE Vectan SP 11<<locked>>86%48,863 psi89%2589 fps100%
SNPE Vectan Tubal 5000<<locked>>86%49,414 psi90%2444 fps100%
SNPE Vectan Tubal 7000<<locked>>90%48,718 psi88%2497 fps98%
SNPE Vectan Tubal 8000<<locked>>98%48,167 psi87%2612 fps96.7%
Somchem S355<<locked>>86%47,863 psi87%2533 fps100%
Somchem S365<<locked>>96%49,792 psi90%2648 fps100%
Somchem S385<<locked>>98%49,110 psi89%2595 fps97.7%
Unknown powder<<locked>>90%49,095 psi89%2605 fps99.4%
Vihtavuori N133<<locked>>82%49,356 psi90%2428 fps100%
Vihtavuori N135<<locked>>82%48,515 psi88%2467 fps100%
Vihtavuori N140<<locked>>82%48,327 psi88%2477 fps100%
Vihtavuori N150<<locked>>92%49,284 psi89%2523 fps100%
Vihtavuori N160<<locked>>90%49,211 psi89%2575 fps99.7%
Vihtavuori N165ᴾ<<locked>>100%43,511 psi79%2490 fps95.9%
Vihtavuori N540<<locked>>82%47,921 psi87%2497 fps100%
Vihtavuori N550<<locked>>90%49,705 psi90%2618 fps99.7%
Vihtavuori N555ᴾ<<locked>>100%48,747 psi88%2648 fps99.9%
Winchester 6.5 StaBALL<<locked>>90%46,557 psi84%2520 fps100%
Winchester 760<<locked>>88%49,400 psi90%2625 fps98.3%
Winchester StaBALL HDᴾ<<locked>>100%39,117 psi71%2608 fps100%
Winchester Supreme 780<<locked>>96%47,369 psi86%2559 fps96.1%

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

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%45,165 psi82%2425 fps100%
Accurate 2700<<locked>>80%39,813 psi72%2336 fps95%
Accurate 3100<<locked>>92%34,824 psi63%2339 fps95.5%
Accurate 4064<<locked>>80%42,786 psi78%2428 fps100%
Accurate 4350<<locked>>80%31,807 psi58%2280 fps96.3%
ADI AR 2208<<locked>>80%41,524 psi75%2408 fps99.2%
ADI AR 2209<<locked>>94%44,338 psi80%2536 fps95.2%
Alliant Power Pro 2000-MR<<locked>>80%45,150 psi82%2598 fps99.7%
Alliant Power Pro Varmint<<locked>>94%44,309 psi80%2536 fps95.4%
Alliant Reloder- TS 15.5<<locked>>80%41,597 psi75%2431 fps99.9%
Alliant Reloder-15<<locked>>80%44,338 psi80%2490 fps99.6%
Alliant Reloder-16<<locked>>80%32,213 psi58%2303 fps96.5%
Alliant Reloder-17<<locked>>80%35,998 psi65%2418 fps99.2%
Alliant Reloder-19<<locked>>94%43,743 psi79%2530 fps95.3%
Alliant Reloder-22<<locked>>98%43,395 psi79%2569 fps95.4%
Alliant Reloder-23<<locked>>84%26,237 psi48%2169 fps95.3%
Alliant Reloder-25<<locked>>96%33,634 psi61%2375 fps95.2%
Alliant Reloder-2649.4 gr88%32,082 psi58%2385 fps95.7%
Bofors RP3<<locked>>80%41,278 psi75%2434 fps99.9%
Bofors RP5<<locked>>98%43,395 psi79%2569 fps95.4%
Bofors RP7<<locked>>82%39,334 psi71%2362 fps95.1%
Hodgdon H380<<locked>>80%42,119 psi76%2448 fps98.6%
Hodgdon H414<<locked>>80%37,420 psi68%2402 fps95.2%
Hodgdon H4350<<locked>>86%41,698 psi76%2444 fps95%
Hodgdon Hybrid 100V<<locked>>80%29,559 psi54%2208 fps97.2%
Hodgdon LEVERevolution<<locked>>80%43,236 psi78%2493 fps100%
Hodgdon Superformance49.8 gr86%41,495 psi75%2513 fps96%
Hodgdon TrailBoss<<locked>>80%26,803 psi49%1434 fps100%
Hodgdon VARGET<<locked>>80%43,961 psi80%2451 fps99.9%
IMR 3031<<locked>>80%45,498 psi83%2477 fps100%
IMR 4064<<locked>>80%40,698 psi74%2385 fps99.2%
IMR 4166 Enduron<<locked>>80%40,393 psi73%2359 fps96.1%
IMR 4350<<locked>>86%39,726 psi72%2395 fps95.3%
IMR 4451 Enduron<<locked>>80%38,580 psi70%2349 fps95.4%
IMR 4831<<locked>>82%30,095 psi55%2224 fps95.6%
IMR 4895<<locked>>80%45,469 psi83%2516 fps99.9%
Lovex S062<<locked>>80%43,613 psi79%2438 fps100%
Lovex S065<<locked>>80%35,708 psi65%2297 fps96.1%
Lovex S070<<locked>>82%36,187 psi66%2323 fps95%
Lovex S071<<locked>>98%35,766 psi65%2359 fps95.8%
Norma 203B<<locked>>80%43,714 psi79%2477 fps99.8%
Norma 204<<locked>>90%45,005 psi82%2530 fps95.4%
Norma MRP<<locked>>94%39,871 psi72%2530 fps95.8%
Norma URP<<locked>>80%32,329 psi59%2290 fps96.3%
Ramshot Big Game<<locked>>80%43,859 psi80%2500 fps99.7%
Ramshot Hunter<<locked>>84%35,998 psi65%2382 fps95.7%
Ramshot Magnum<<locked>>98%41,872 psi76%2516 fps95.3%
ReloadSwiss RS 14<<locked>>80%27,006 psi49%1463 fps100%
ReloadSwiss RS 50<<locked>>80%42,206 psi77%2428 fps97.2%
ReloadSwiss RS 60<<locked>>80%38,377 psi70%2477 fps100%
ReloadSwiss RS 62<<locked>>80%31,604 psi57%2297 fps95.7%
ReloadSwiss RS 7045.6 gr82%33,794 psi61%2362 fps95.8%
Rottweil R 902<<locked>>80%45,542 psi83%2454 fps100%
Rottweil R 903<<locked>>80%38,841 psi70%2385 fps99.6%
Rottweil R 905<<locked>>94%42,409 psi77%2510 fps95.1%
Rottweil R 907<<locked>>82%39,334 psi71%2362 fps95.1%
Shooters World Long Rifle<<locked>>80%35,708 psi65%2297 fps96.1%
Shooters World Precision<<locked>>80%43,613 psi79%2438 fps100%
Shooters World SW4350<<locked>>82%36,187 psi66%2323 fps95%
SNPE Vectan SP 11<<locked>>80%39,987 psi73%2434 fps99.3%
SNPE Vectan Tubal 5000<<locked>>80%41,089 psi75%2320 fps100%
SNPE Vectan Tubal 7000<<locked>>82%37,420 psi68%2297 fps95.2%
SNPE Vectan Tubal 8000<<locked>>94%42,003 psi76%2503 fps95%
Somchem S355<<locked>>80%39,407 psi72%2385 fps99.5%
Somchem S365<<locked>>80%28,834 psi52%2244 fps98.3%
Somchem S385<<locked>>92%40,147 psi73%2438 fps95.4%
Unknown powder<<locked>>80%34,969 psi63%2339 fps96.5%
Vihtavuori N133<<locked>>80%46,311 psi84%2385 fps100%
Vihtavuori N135<<locked>>80%45,469 psi83%2425 fps100%
Vihtavuori N140<<locked>>80%45,121 psi82%2428 fps100%
Vihtavuori N150<<locked>>80%33,765 psi61%2251 fps99.4%
Vihtavuori N160<<locked>>80%35,085 psi64%2320 fps97.2%
Vihtavuori N165<<locked>>98%40,857 psi74%2441 fps95.1%
Vihtavuori N540<<locked>>80%44,802 psi81%2451 fps100%
Vihtavuori N550<<locked>>80%35,665 psi65%2359 fps97.2%
Vihtavuori N555<<locked>>84%28,369 psi51%2238 fps95.5%
Winchester 6.5 StaBALL<<locked>>80%33,141 psi60%2267 fps98.6%
Winchester 760<<locked>>80%37,420 psi68%2402 fps95.2%
Winchester StaBALL HD<<locked>>88%26,136 psi47%2238 fps95.8%
Winchester Supreme 780<<locked>>94%44,092 psi80%2503 fps95.2%

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 80 powders for 7 x 65 R Brenneke loaded with the .284 | 166gr | Peregrine VRG-2. Alliant Reloder-26 delivers the highest muzzle velocity at 2,746 fps; across all powders the maximum-charge window runs from 1,604 fps to 2,746 fps. Accurate 3100 gives the best case fill at 100 %, and 80 of the 80 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (380 MPa), the top charges use 65–90 %, leaving at least 10 % headroom. The 166.0 gr projectile in 0.284" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-22, 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 70, Hodgdon Superformance, Alliant Reloder-26 rank at the top here: for 7 x 65 R Brenneke with the .284 | 166gr | Peregrine VRG-2 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.

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