Load data for 6 x 52 R BB2 + .243 | 97gr | Peregrine Glider GRM

6 x 52 R BB2 cartridge drawing
Peregrine logo

Load Specifications

Bullet Manufacturer:Peregrine
Bullet Weight:97 gr
Bullet Diameter:0.243"
Bullet Length:<<locked>>
Case Length (l3):2.04"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:40 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:23.62"
Max. allowed Pressure:47,862 psi
Recommended Twist Rate:1:7.0

Load data in caliber 6 x 52 R BB2 with .243 | 97gr | Peregrine Glider GRM bullet and 120 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, Hodgdon LEVERevolution and Bofors RP3.

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 2015<<locked>>86%43,308 psi90%2536 fps100%
Accurate 2015<<locked>>84%41,060 psi86%2500 fps100%
Accurate 2460<<locked>>82%41,539 psi87%2536 fps99.2%
Accurate 2460<<locked>>82%41,626 psi87%2539 fps99.3%
Accurate 2495<<locked>>92%41,930 psi88%2572 fps100%
Accurate 2495<<locked>>92%42,496 psi89%2582 fps100%
Accurate 2520<<locked>>86%42,047 psi88%2582 fps99.1%
Accurate 2520<<locked>>86%42,569 psi89%2592 fps99.2%
Accurate 4064<<locked>>94%42,076 psi88%2602 fps99.7%
Accurate 4064<<locked>>94%42,105 psi88%2605 fps99.7%
ADI AR 2206H<<locked>>88%42,525 psi89%2582 fps96.5%
ADI AR 2206H<<locked>>88%43,018 psi90%2595 fps96.7%
ADI Benchmark 8208<<locked>>86%42,221 psi88%2552 fps97.7%
ADI Benchmark 8208<<locked>>86%42,743 psi89%2562 fps97.9%
Alliant AR-Comp<<locked>>86%40,611 psi85%2562 fps100%
Alliant AR-Comp<<locked>>86%40,712 psi85%2566 fps100%
Alliant Power Pro 1200-R<<locked>>82%42,525 psi89%2635 fps97.3%
Alliant Power Pro 1200-R<<locked>>82%43,091 psi90%2648 fps97.4%
Alliant Reloder- TS 15.5<<locked>>94%41,800 psi87%2592 fps97.4%
Alliant Reloder- TS 15.5<<locked>>94%42,351 psi88%2605 fps97.6%
Alliant Reloder-15<<locked>>92%42,946 psi90%2612 fps96.1%
Alliant Reloder-17<<locked>>98%42,264 psi88%2667 fps96.7%
Alliant Reloder-17<<locked>>98%42,670 psi89%2680 fps96.9%
Bofors RP3<<locked>>94%41,350 psi86%2598 fps97.4%
Bofors RP3<<locked>>94%41,872 psi87%2608 fps97.6%
Hodgdon Benchmark<<locked>>84%41,916 psi88%2503 fps98.1%
Hodgdon Benchmark<<locked>>84%42,409 psi89%2516 fps98.3%
Hodgdon BL-C2<<locked>>88%42,743 psi89%2615 fps98.4%
Hodgdon BL-C2<<locked>>88%43,265 psi90%2625 fps98.5%
Hodgdon H322<<locked>>82%42,424 psi89%2569 fps99.9%
Hodgdon H322<<locked>>82%42,554 psi89%2572 fps99.9%
Hodgdon H335<<locked>>82%43,120 psi90%2585 fps99.6%
Hodgdon H335<<locked>>82%43,163 psi90%2589 fps99.6%
Hodgdon H4895<<locked>>88%42,772 psi89%2595 fps97.2%
Hodgdon H4895<<locked>>86%40,611 psi85%2556 fps96.7%
Hodgdon LEVERevolution<<locked>>90%41,017 psi86%2608 fps97.2%
Hodgdon LEVERevolution<<locked>>90%41,481 psi87%2621 fps97.4%
Hodgdon TrailBossᴾ<<locked>>100%33,475 psi70%1640 fps100%
Hodgdon TrailBossᴾ<<locked>>100%33,721 psi70%1647 fps100%
Hodgdon VARGET<<locked>>88%41,437 psi87%2552 fps96.8%
Hodgdon VARGET<<locked>>88%41,916 psi88%2562 fps96.9%
IMR 3031<<locked>>88%41,075 psi86%2598 fps100%
IMR 3031<<locked>>88%41,684 psi87%2612 fps100%
IMR 4064<<locked>>92%43,033 psi90%2562 fps96.1%
IMR 4064<<locked>>92%43,091 psi90%2569 fps96.2%
IMR 4895<<locked>>90%41,147 psi86%2592 fps96.3%
IMR 4895<<locked>>90%41,640 psi87%2602 fps96.5%
IMR 8208 XBR<<locked>>86%42,221 psi88%2552 fps97.7%
IMR 8208 XBR<<locked>>86%42,743 psi89%2562 fps97.9%
Lovex D073.5<<locked>>82%41,104 psi86%2530 fps98.3%
Lovex D073.5<<locked>>82%41,162 psi86%2533 fps98.4%
Lovex D073.6<<locked>>90%43,149 psi90%2612 fps99.2%
Lovex D073.6<<locked>>88%40,828 psi85%2572 fps98.9%
Lovex S060<<locked>>86%41,089 psi86%2484 fps96.1%
Lovex S060<<locked>>86%41,568 psi87%2493 fps96.3%
Lovex S062<<locked>>92%42,337 psi88%2569 fps97.9%
Lovex S062<<locked>>92%42,380 psi89%2572 fps97.9%
Norma 201<<locked>>88%41,249 psi86%2536 fps97.6%
Norma 201<<locked>>88%41,756 psi87%2546 fps97.7%
Norma 202<<locked>>88%41,626 psi87%2559 fps99.4%
Norma 202<<locked>>88%41,713 psi87%2562 fps99.4%
Norma 203B<<locked>>92%42,076 psi88%2598 fps96.5%
Norma 203B<<locked>>92%42,612 psi89%2612 fps96.7%
Ramshot Big Game<<locked>>92%42,221 psi88%2615 fps96.2%
Ramshot Big Game<<locked>>92%42,699 psi89%2625 fps96.3%
Ramshot Wild Boar<<locked>>86%41,350 psi86%2569 fps96.2%
Ramshot Wild Boar<<locked>>86%41,394 psi86%2572 fps96.2%
Ramshot X-Terminator<<locked>>82%40,756 psi85%2503 fps95.8%
ReloadSwiss RS 14ᴾ<<locked>>100%33,605 psi70%1680 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%33,852 psi71%1686 fps100%
ReloadSwiss RS 40<<locked>>82%41,945 psi88%2543 fps98.8%
ReloadSwiss RS 40<<locked>>82%42,018 psi88%2549 fps98.8%
ReloadSwiss RS 60<<locked>>96%42,424 psi89%2687 fps99%
ReloadSwiss RS 60<<locked>>96%42,844 psi90%2700 fps99.1%
Rottweil R 901<<locked>>86%42,424 psi89%2539 fps99.3%
Rottweil R 901<<locked>>86%42,946 psi90%2552 fps99.4%
Rottweil R 902<<locked>>90%42,018 psi88%2543 fps97.7%
Rottweil R 902<<locked>>90%42,090 psi88%2546 fps97.8%
Rottweil R 903<<locked>>96%41,249 psi86%2585 fps97.1%
Rottweil R 903<<locked>>96%41,321 psi86%2589 fps97.1%
Shooters World Match Rifle<<locked>>90%43,149 psi90%2612 fps99.2%
Shooters World Match Rifle<<locked>>88%40,828 psi85%2572 fps98.9%
Shooters World Precision<<locked>>92%42,337 psi88%2569 fps97.9%
Shooters World Precision<<locked>>92%42,380 psi89%2572 fps97.9%
SNPE Vectan SP 11<<locked>>94%40,756 psi85%2592 fps95.8%
SNPE Vectan SP 11<<locked>>94%41,191 psi86%2605 fps96%
SNPE Vectan SP 9<<locked>>88%41,249 psi86%2556 fps96.2%
SNPE Vectan SP 9<<locked>>88%41,292 psi86%2559 fps96.2%
SNPE Vectan Tubal 3000<<locked>>86%41,104 psi86%2467 fps99.2%
SNPE Vectan Tubal 3000<<locked>>86%41,684 psi87%2480 fps99.3%
SNPE Vectan Tubal 5000<<locked>>94%43,221 psi90%2513 fps99.9%
SNPE Vectan Tubal 5000<<locked>>94%43,279 psi90%2516 fps99.9%
Somchem S321<<locked>>84%42,366 psi89%2575 fps98.1%
Somchem S321<<locked>>84%42,902 psi90%2589 fps98.2%
Somchem S335<<locked>>88%42,714 psi89%2513 fps99.8%
Somchem S335<<locked>>88%43,236 psi90%2523 fps99.8%
Somchem S341<<locked>>88%42,540 psi89%2569 fps96.4%
Somchem S341<<locked>>88%43,033 psi90%2579 fps96.6%
Somchem S355<<locked>>96%42,685 psi89%2598 fps97.1%
Somchem S355<<locked>>96%42,714 psi89%2598 fps97.2%
Vihtavuori N130<<locked>>82%41,379 psi86%2464 fps100%
Vihtavuori N130<<locked>>82%41,495 psi87%2467 fps100%
Vihtavuori N133<<locked>>86%41,060 psi86%2470 fps100%
Vihtavuori N133<<locked>>86%41,611 psi87%2484 fps100%
Vihtavuori N135<<locked>>92%42,946 psi90%2575 fps100%
Vihtavuori N135<<locked>>90%40,669 psi85%2539 fps100%
Vihtavuori N140<<locked>>90%41,901 psi88%2539 fps99.6%
Vihtavuori N140<<locked>>90%42,395 psi89%2552 fps99.7%
Vihtavuori N150<<locked>>96%40,930 psi86%2539 fps98%
Vihtavuori N150<<locked>>96%40,973 psi86%2539 fps98%
Vihtavuori N530<<locked>>86%42,322 psi88%2549 fps97.8%
Vihtavuori N530<<locked>>86%42,395 psi89%2552 fps97.9%
Vihtavuori N540<<locked>>92%43,120 psi90%2579 fps99.5%
Vihtavuori N540<<locked>>90%40,480 psi85%2533 fps99.2%
Winchester 6.5 StaBALLᴾ<<locked>>100%43,178 psi90%2572 fps97%
Winchester 6.5 StaBALLᴾ<<locked>>100%43,062 psi90%2572 fps97%
Winchester 748<<locked>>86%40,785 psi85%2585 fps98.3%
Winchester 748<<locked>>86%41,321 psi86%2595 fps98.4%
Winchester StaBALL Match<<locked>>90%43,178 psi90%2612 fps97.3%
Winchester StaBALL Match<<locked>>90%43,192 psi90%2615 fps97.4%

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

Start Load - Barrel Length: 23.62"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%35,723 psi75%2398 fps99.8%
Accurate 2015<<locked>>80%35,868 psi75%2402 fps99.8%
Accurate 2460<<locked>>80%38,464 psi80%2477 fps98.8%
Accurate 2460<<locked>>80%38,986 psi81%2490 fps98.9%
Accurate 2495<<locked>>80%27,717 psi58%2280 fps98.7%
Accurate 2495<<locked>>80%27,833 psi58%2283 fps98.8%
Accurate 2520<<locked>>80%33,866 psi71%2418 fps97.3%
Accurate 2520<<locked>>80%34,345 psi72%2431 fps97.5%
Accurate 4064<<locked>>80%26,295 psi55%2251 fps95.7%
Accurate 4064<<locked>>80%26,411 psi55%2257 fps95.8%
ADI AR 2206H<<locked>>84%37,347 psi78%2477 fps95%
ADI AR 2206H<<locked>>84%37,826 psi79%2490 fps95.2%
ADI Benchmark 8208<<locked>>80%34,751 psi73%2398 fps95.6%
ADI Benchmark 8208<<locked>>80%35,215 psi74%2411 fps95.8%
Alliant AR-Comp<<locked>>80%33,199 psi69%2425 fps100%
Alliant AR-Comp<<locked>>80%33,330 psi70%2428 fps100%
Alliant Power Pro 1200-R<<locked>>80%39,668 psi83%2579 fps96.5%
Alliant Power Pro 1200-R<<locked>>80%40,277 psi84%2592 fps96.7%
Alliant Reloder- TS 15.5<<locked>>88%34,577 psi72%2444 fps95.2%
Alliant Reloder- TS 15.5<<locked>>88%34,664 psi72%2451 fps95.3%
Alliant Reloder-15<<locked>>90%40,176 psi84%2559 fps95.3%
Alliant Reloder-17<<locked>>96%39,624 psi83%2612 fps95.8%
Alliant Reloder-17<<locked>>96%40,016 psi84%2625 fps96%
Bofors RP326.6 gr88%33,634 psi70%2438 fps95%
Bofors RP326.6 gr88%33,692 psi70%2441 fps95.1%
Hodgdon Benchmark<<locked>>80%37,275 psi78%2411 fps97%
Hodgdon Benchmark<<locked>>80%37,347 psi78%2415 fps97.1%
Hodgdon BL-C2<<locked>>80%32,416 psi68%2402 fps95.5%
Hodgdon BL-C2<<locked>>80%32,503 psi68%2405 fps95.6%
Hodgdon H322<<locked>>80%39,668 psi83%2520 fps99.6%
Hodgdon H322<<locked>>80%39,755 psi83%2523 fps99.7%
Hodgdon H335<<locked>>80%40,350 psi84%2536 fps99.2%
Hodgdon H335<<locked>>80%40,451 psi85%2539 fps99.2%
Hodgdon H4895<<locked>>84%37,550 psi78%2490 fps95.8%
Hodgdon H4895<<locked>>82%35,621 psi74%2451 fps95.1%
Hodgdon LEVERevolution26.9 gr86%36,071 psi75%2503 fps95.7%
Hodgdon LEVERevolution26.9 gr86%36,114 psi75%2507 fps95.7%
Hodgdon TrailBoss<<locked>>80%24,700 psi52%1463 fps100%
Hodgdon TrailBoss<<locked>>80%24,961 psi52%1473 fps100%
Hodgdon VARGET<<locked>>84%36,347 psi76%2448 fps95.2%
Hodgdon VARGET<<locked>>84%36,811 psi77%2461 fps95.4%
IMR 3031<<locked>>80%31,415 psi66%2398 fps98.8%
IMR 3031<<locked>>80%31,879 psi67%2411 fps99%
IMR 4064<<locked>>90%40,292 psi84%2513 fps95.3%
IMR 4064<<locked>>90%40,785 psi85%2523 fps95.5%
IMR 4895<<locked>>88%38,479 psi80%2536 fps95.5%
IMR 4895<<locked>>88%38,972 psi81%2549 fps95.7%
IMR 8208 XBR<<locked>>80%34,751 psi73%2398 fps95.6%
IMR 8208 XBR<<locked>>80%35,215 psi74%2411 fps95.8%
Lovex D073.5<<locked>>80%38,450 psi80%2480 fps97.8%
Lovex D073.5<<locked>>80%38,551 psi81%2484 fps97.8%
Lovex D073.6<<locked>>80%30,603 psi64%2356 fps96.2%
Lovex D073.6<<locked>>80%30,705 psi64%2359 fps96.3%
Lovex S060<<locked>>84%38,566 psi81%2434 fps95.4%
Lovex S060<<locked>>84%39,015 psi82%2444 fps95.5%
Lovex S062<<locked>>86%34,722 psi73%2418 fps95.8%
Lovex S062<<locked>>84%32,967 psi69%2379 fps95.2%
Norma 201<<locked>>82%34,243 psi72%2392 fps95.6%
Norma 201<<locked>>82%34,287 psi72%2395 fps95.6%
Norma 202<<locked>>80%31,836 psi67%2356 fps97.3%
Norma 202<<locked>>80%32,314 psi68%2369 fps97.5%
Norma 203B<<locked>>90%39,392 psi82%2546 fps95.8%
Norma 203B<<locked>>88%37,376 psi78%2507 fps95.1%
Ramshot Big Game<<locked>>90%39,624 psi83%2562 fps95.4%
Ramshot Big Game<<locked>>90%39,639 psi83%2566 fps95.4%
Ramshot Wild Boar<<locked>>84%38,377 psi80%2510 fps95.2%
Ramshot Wild Boar<<locked>>84%38,812 psi81%2520 fps95.4%
Ramshot X-Terminator<<locked>>80%38,290 psi80%2454 fps95.1%
ReloadSwiss RS 14<<locked>>80%24,932 psi52%1503 fps100%
ReloadSwiss RS 14<<locked>>80%24,801 psi52%1503 fps100%
ReloadSwiss RS 40<<locked>>80%39,262 psi82%2493 fps98.3%
ReloadSwiss RS 40<<locked>>80%39,349 psi82%2497 fps98.3%
ReloadSwiss RS 6027.6 gr88%32,532 psi68%2454 fps95.7%
ReloadSwiss RS 6027.6 gr88%32,547 psi68%2457 fps95.8%
Rottweil R 901<<locked>>80%35,230 psi74%2398 fps98%
Rottweil R 901<<locked>>80%35,752 psi75%2411 fps98.2%
Rottweil R 902<<locked>>84%34,490 psi72%2388 fps95.6%
Rottweil R 902<<locked>>82%32,706 psi68%2349 fps95%
Rottweil R 903<<locked>>92%35,969 psi75%2480 fps95.5%
Rottweil R 903<<locked>>92%36,434 psi76%2493 fps95.7%
Shooters World Match Rifle<<locked>>80%30,603 psi64%2356 fps96.2%
Shooters World Match Rifle<<locked>>80%30,705 psi64%2359 fps96.3%
Shooters World Precision<<locked>>86%34,722 psi73%2418 fps95.8%
Shooters World Precision<<locked>>84%32,967 psi69%2379 fps95.2%
SNPE Vectan SP 11<<locked>>92%38,232 psi80%2539 fps95%
SNPE Vectan SP 11<<locked>>92%38,667 psi81%2549 fps95.2%
SNPE Vectan SP 9<<locked>>86%38,667 psi81%2503 fps95.4%
SNPE Vectan SP 9<<locked>>86%38,725 psi81%2510 fps95.4%
SNPE Vectan Tubal 3000<<locked>>80%33,924 psi71%2326 fps97.8%
SNPE Vectan Tubal 3000<<locked>>80%34,403 psi72%2336 fps98%
SNPE Vectan Tubal 5000<<locked>>80%27,427 psi57%2188 fps96.8%
SNPE Vectan Tubal 5000<<locked>>80%27,833 psi58%2201 fps97%
Somchem S321<<locked>>80%36,811 psi77%2467 fps96.7%
Somchem S321<<locked>>80%37,304 psi78%2480 fps96.9%
Somchem S335<<locked>>80%33,344 psi70%2329 fps98.4%
Somchem S335<<locked>>80%33,431 psi70%2333 fps98.5%
Somchem S341<<locked>>86%39,842 psi83%2516 fps95.6%
Somchem S341<<locked>>86%39,885 psi83%2520 fps95.7%
Somchem S355<<locked>>92%37,391 psi78%2493 fps95.7%
Somchem S355<<locked>>90%35,418 psi74%2454 fps95%
Vihtavuori N130<<locked>>80%38,740 psi81%2415 fps100%
Vihtavuori N130<<locked>>80%39,276 psi82%2428 fps100%
Vihtavuori N133<<locked>>80%33,924 psi71%2336 fps99.6%
Vihtavuori N133<<locked>>80%34,418 psi72%2349 fps99.7%
Vihtavuori N135<<locked>>80%28,819 psi60%2293 fps98.9%
Vihtavuori N135<<locked>>80%29,298 psi61%2310 fps99%
Vihtavuori N140<<locked>>80%30,313 psi63%2303 fps97.2%
Vihtavuori N140<<locked>>80%30,400 psi64%2306 fps97.3%
Vihtavuori N150<<locked>>88%31,227 psi65%2336 fps95%
Vihtavuori N150<<locked>>88%31,647 psi66%2349 fps95.2%
Vihtavuori N530<<locked>>80%34,592 psi72%2392 fps95.6%
Vihtavuori N530<<locked>>80%34,693 psi72%2398 fps95.7%
Vihtavuori N540<<locked>>80%29,124 psi61%2283 fps96.1%
Vihtavuori N540<<locked>>80%29,211 psi61%2290 fps96.2%
Winchester 6.5 StaBALL<<locked>>96%37,637 psi79%2464 fps95.2%
Winchester 6.5 StaBALL<<locked>>96%37,623 psi79%2467 fps95.2%
Winchester 748<<locked>>80%33,083 psi69%2418 fps96.1%
Winchester 748<<locked>>80%33,533 psi70%2431 fps96.3%
Winchester StaBALL Match<<locked>>86%37,434 psi78%2500 fps95.7%
Winchester StaBALL Match<<locked>>84%35,114 psi73%2451 fps95%

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 120 powders for 6 x 52 R BB2 loaded with the .243 | 97gr | Peregrine Glider GRM. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,700 fps; across all powders the maximum-charge window runs from 1,640 fps to 2,700 fps. Hodgdon TrailBoss gives the best case fill at 100 %, and 120 of the 120 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (330 MPa), the top charges use 70–90 %, leaving at least 10 % headroom. The 97.0 gr projectile in 0.243" calls for a 1:7.0 twist; slower twists will usually not stabilise this weight. Hodgdon TrailBoss, Hodgdon TrailBoss, ReloadSwiss RS 14 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, Hodgdon LEVERevolution, Bofors RP3 rank at the top here: for 6 x 52 R BB2 with the .243 | 97gr | Peregrine Glider GRM 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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