Load data for 8 x 50 R + .323 | 196gr | Geco PLUS

8 x 50 R cartridge drawing
Geco logo

Load Specifications

Bullet Manufacturer:Geco
Bullet Weight:196 gr
Bullet Diameter:0.323"
Bullet Length:<<locked>>
Case Length (l3):1.976"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:52 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:29"
Max. allowed Pressure:51,488 psi
Recommended Twist Rate:1:16.5

Load data in caliber 8 x 50 R with .323 | 196gr | Geco PLUS bullet and 78 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 52, Hodgdon LEVERevolution and ReloadSwiss RS 60.

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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Max Load - Barrel Length: 29"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>88%44,773 psi87%2405 fps100%
Accurate 2460<<locked>>86%45,716 psi89%2457 fps100%
Accurate 2495<<locked>>96%46,021 psi89%2490 fps100%
Accurate 2520<<locked>>90%46,398 psi90%2510 fps99.9%
Accurate 4064<<locked>>98%45,774 psi89%2520 fps100%
Accurate LT-30<<locked>>82%46,093 psi90%2359 fps100%
Accurate LT-32<<locked>>82%46,470 psi90%2372 fps99.9%
ADI AR 2206H<<locked>>92%46,572 psi90%2513 fps98.4%
ADI AR 2208<<locked>>96%44,541 psi87%2457 fps97.3%
ADI AR 2219<<locked>>82%44,788 psi87%2461 fps100%
ADI Benchmark 8208<<locked>>90%46,296 psi90%2477 fps99.2%
Alliant AR-Comp<<locked>>90%44,454 psi86%2470 fps100%
Alliant Power Pro 1200-R<<locked>>84%43,918 psi85%2516 fps98.6%
Alliant Power Pro 2000-MR<<locked>>94%45,513 psi88%2582 fps97.2%
Alliant Reloder- TS 15.5<<locked>>98%45,426 psi88%2516 fps99%
Alliant Reloder-10x<<locked>>84%45,208 psi88%2418 fps100%
Alliant Reloder-15<<locked>>94%43,918 psi85%2493 fps97.5%
Alliant Reloder-17ᴾ<<locked>>100%43,047 psi84%2549 fps98.1%
Baschieri & Pellagri 106<<locked>>82%44,730 psi87%2359 fps100%
Baschieri & Pellagri 107<<locked>>92%45,701 psi89%2513 fps97.2%
Bofors RP3<<locked>>98%45,034 psi87%2526 fps99%
Hodgdon Benchmark<<locked>>88%46,166 psi90%2428 fps99.4%
Hodgdon BL-C2<<locked>>90%43,787 psi85%2497 fps99.3%
Hodgdon CFE223<<locked>>88%45,310 psi88%2566 fps97.8%
Hodgdon H322<<locked>>86%46,485 psi90%2484 fps100%
Hodgdon H335<<locked>>84%44,440 psi86%2464 fps100%
Hodgdon H380<<locked>>96%44,280 psi86%2484 fps96.1%
Hodgdon H4895<<locked>>90%44,005 psi85%2477 fps98.5%
Hodgdon LEVERevolution<<locked>>94%44,599 psi87%2536 fps98.9%
Hodgdon TrailBossᴾ<<locked>>100%33,779 psi66%1506 fps100%
Hodgdon VARGET<<locked>>92%45,252 psi88%2477 fps98.5%
IMR 3031<<locked>>92%45,034 psi87%2516 fps100%
IMR 4064<<locked>>94%43,961 psi85%2441 fps97.4%
IMR 4198<<locked>>84%46,180 psi90%2385 fps100%
IMR 4895<<locked>>94%44,962 psi87%2523 fps98.3%
IMR 8208 XBR<<locked>>90%46,296 psi90%2477 fps99.2%
Lovex D073.5<<locked>>86%45,614 psi89%2464 fps99.6%
Lovex D073.6<<locked>>92%44,135 psi86%2490 fps99.8%
Lovex S060<<locked>>90%45,063 psi88%2411 fps98%
Lovex S062<<locked>>96%45,876 psi89%2490 fps99.2%
Norma 201<<locked>>92%45,513 psi88%2467 fps99.2%
Norma 202<<locked>>92%45,440 psi88%2480 fps100%
Norma 203B<<locked>>96%45,919 psi89%2530 fps98.4%
Ramshot Big Game<<locked>>96%46,137 psi90%2546 fps98.1%
Ramshot Wild Boar<<locked>>90%45,034 psi87%2497 fps98.1%
Ramshot X-Terminator<<locked>>86%44,773 psi87%2431 fps97.8%
ReloadSwiss RS 14ᴾ<<locked>>100%33,924 psi66%1542 fps100%
ReloadSwiss RS 40<<locked>>86%46,006 psi89%2467 fps99.8%
ReloadSwiss RS 52<<locked>>94%45,614 psi89%2582 fps97.8%
ReloadSwiss RS 60ᴾ<<locked>>100%46,006 psi89%2615 fps99.9%
Rottweil R 901<<locked>>88%44,121 psi86%2421 fps99.9%
Rottweil R 902<<locked>>94%45,847 psi89%2464 fps99.2%
Rottweil R 903ᴾ<<locked>>100%44,904 psi87%2513 fps98.7%
Shooters World Match Rifle<<locked>>92%44,135 psi86%2490 fps99.8%
Shooters World Precision<<locked>>96%45,876 psi89%2490 fps99.2%
Shooters World Tactical Rifle<<locked>>84%45,948 psi89%2431 fps98.9%
SNPE Vectan SP 10<<locked>>82%45,237 psi88%2467 fps100%
SNPE Vectan SP 11<<locked>>98%44,396 psi86%2526 fps97.9%
SNPE Vectan SP 3<<locked>>84%46,035 psi89%2431 fps100%
SNPE Vectan SP 7<<locked>>90%44,048 psi86%2448 fps95.9%
SNPE Vectan SP 9<<locked>>92%44,802 psi87%2480 fps98.1%
SNPE Vectan Tubal 3000<<locked>>90%45,295 psi88%2388 fps100%
SNPE Vectan Tubal 5000<<locked>>96%43,990 psi85%2382 fps100%
Somchem S321<<locked>>86%43,729 psi85%2461 fps99.1%
Somchem S335<<locked>>90%44,135 psi86%2388 fps100%
Somchem S341<<locked>>90%43,453 psi84%2448 fps97.7%
Somchem S355ᴾ<<locked>>100%46,209 psi90%2520 fps98.8%
Somchem S365ᴾ<<locked>>100%33,054 psi64%2352 fps96.7%
Vihtavuori N130<<locked>>86%45,426 psi88%2372 fps100%
Vihtavuori N133<<locked>>90%45,005 psi87%2382 fps100%
Vihtavuori N135<<locked>>94%43,976 psi85%2444 fps100%
Vihtavuori N140<<locked>>94%45,672 psi89%2457 fps100%
Vihtavuori N150ᴾ<<locked>>100%44,541 psi87%2464 fps99.3%
Vihtavuori N530<<locked>>90%46,412 psi90%2474 fps99.2%
Vihtavuori N540<<locked>>94%44,092 psi86%2457 fps99.9%
Winchester 6.5 StaBALLᴾ<<locked>>100%41,162 psi80%2405 fps97.5%
Winchester 748<<locked>>90%44,846 psi87%2516 fps99.6%
Winchester StaBALL Match<<locked>>92%43,859 psi85%2487 fps98.5%

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

Start Load - Barrel Length: 29"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%34,795 psi68%2241 fps100%
Accurate 2460<<locked>>80%37,434 psi73%2323 fps99.3%
Accurate 2495<<locked>>80%27,253 psi53%2152 fps99.5%
Accurate 2520<<locked>>80%32,750 psi64%2270 fps98.2%
Accurate 4064<<locked>>80%25,831 psi50%2129 fps97.2%
Accurate LT-30<<locked>>80%43,598 psi85%2320 fps100%
Accurate LT-32<<locked>>80%43,976 psi85%2336 fps99.7%
ADI AR 2206H<<locked>>82%34,084 psi66%2280 fps95.3%
ADI AR 2208<<locked>>90%37,217 psi72%2326 fps95.4%
ADI AR 2219<<locked>>80%41,974 psi82%2415 fps100%
ADI Benchmark 8208<<locked>>80%33,895 psi66%2251 fps96.7%
Alliant AR-Comp<<locked>>80%31,952 psi62%2264 fps100%
Alliant Power Pro 1200-R<<locked>>80%38,479 psi75%2415 fps97.5%
Alliant Power Pro 2000-MR<<locked>>90%39,972 psi78%2477 fps95.6%
Alliant Reloder- TS 15.5<<locked>>86%31,372 psi61%2254 fps95.6%
Alliant Reloder-10x<<locked>>80%39,914 psi78%2336 fps100%
Alliant Reloder-15<<locked>>88%36,376 psi71%2352 fps95.5%
Alliant Reloder-17<<locked>>94%35,534 psi69%2398 fps95.8%
Baschieri & Pellagri 106<<locked>>80%41,887 psi81%2316 fps100%
Baschieri & Pellagri 107<<locked>>86%37,579 psi73%2369 fps95%
Bofors RP3<<locked>>86%30,284 psi59%2247 fps95.4%
Hodgdon Benchmark<<locked>>80%36,332 psi71%2257 fps97.9%
Hodgdon BL-C2<<locked>>80%31,183 psi61%2257 fps96.6%
Hodgdon CFE223<<locked>>82%37,130 psi72%2411 fps95.6%
Hodgdon H322<<locked>>80%38,406 psi75%2356 fps99.9%
Hodgdon H335<<locked>>80%38,885 psi76%2372 fps99.6%
Hodgdon H380<<locked>>94%41,539 psi81%2438 fps95.4%
Hodgdon H4895<<locked>>80%32,097 psi62%2244 fps95.3%
Hodgdon LEVERevolution38.3 gr82%30,472 psi59%2247 fps95%
Hodgdon TrailBoss<<locked>>80%25,048 psi49%1345 fps100%
Hodgdon VARGET<<locked>>82%33,272 psi65%2251 fps95.6%
IMR 3031<<locked>>80%30,603 psi59%2254 fps99.5%
IMR 4064<<locked>>88%36,608 psi71%2306 fps95.5%
IMR 4198<<locked>>80%41,104 psi80%2310 fps100%
IMR 4895<<locked>>84%32,692 psi63%2290 fps95%
IMR 8208 XBR<<locked>>80%33,895 psi66%2251 fps96.7%
Lovex D073.5<<locked>>80%37,144 psi72%2323 fps98.5%
Lovex D073.6<<locked>>80%29,544 psi57%2211 fps97.3%
Lovex S060<<locked>>82%35,491 psi69%2234 fps95.7%
Lovex S062<<locked>>82%29,849 psi58%2182 fps95.4%
Norma 201<<locked>>80%31,343 psi61%2198 fps95.9%
Norma 202<<locked>>80%31,111 psi60%2215 fps98.3%
Norma 203B<<locked>>86%33,431 psi65%2297 fps95.2%
Ramshot Big Game<<locked>>88%35,650 psi69%2352 fps95.4%
Ramshot Wild Boar<<locked>>82%34,679 psi67%2306 fps95.4%
Ramshot X-Terminator<<locked>>80%36,825 psi72%2290 fps95.9%
ReloadSwiss RS 14<<locked>>80%25,034 psi49%1375 fps100%
ReloadSwiss RS 40<<locked>>80%38,029 psi74%2333 fps98.9%
ReloadSwiss RS 5240.7 gr88%37,608 psi73%2438 fps95.8%
ReloadSwiss RS 6040.4 gr86%29,617 psi58%2260 fps96%
Rottweil R 901<<locked>>80%34,838 psi68%2251 fps98.8%
Rottweil R 902<<locked>>80%29,834 psi58%2156 fps95.3%
Rottweil R 903<<locked>>88%30,429 psi59%2241 fps95%
Shooters World Match Rifle<<locked>>80%29,544 psi57%2211 fps97.3%
Shooters World Precision<<locked>>82%29,849 psi58%2182 fps95.4%
Shooters World Tactical Rifle<<locked>>80%40,147 psi78%2336 fps97.9%
SNPE Vectan SP 10<<locked>>80%42,511 psi83%2425 fps99.8%
SNPE Vectan SP 11<<locked>>90%34,563 psi67%2336 fps95.1%
SNPE Vectan SP 3<<locked>>80%40,596 psi79%2346 fps100%
SNPE Vectan SP 7<<locked>>88%41,307 psi80%2402 fps95.1%
SNPE Vectan SP 9<<locked>>84%34,722 psi67%2297 fps95.5%
SNPE Vectan Tubal 3000<<locked>>80%33,417 psi65%2182 fps98.7%
SNPE Vectan Tubal 5000<<locked>>80%27,093 psi53%2064 fps97.9%
Somchem S321<<locked>>80%35,737 psi69%2316 fps97.6%
Somchem S335<<locked>>80%32,605 psi63%2185 fps99.1%
Somchem S341<<locked>>84%35,795 psi70%2306 fps95.7%
Somchem S355<<locked>>88%31,749 psi62%2251 fps95.2%
Somchem S365<<locked>>96%29,283 psi57%2257 fps95%
Vihtavuori N130<<locked>>80%38,043 psi74%2257 fps100%
Vihtavuori N133<<locked>>80%33,301 psi65%2188 fps99.9%
Vihtavuori N135<<locked>>80%28,282 psi55%2162 fps99.6%
Vihtavuori N140<<locked>>80%29,414 psi57%2159 fps98.1%
Vihtavuori N150<<locked>>86%28,558 psi55%2156 fps95.5%
Vihtavuori N530<<locked>>80%33,605 psi65%2244 fps96.7%
Vihtavuori N540<<locked>>80%28,224 psi55%2149 fps97.2%
Winchester 6.5 StaBALL<<locked>>94%33,953 psi66%2260 fps95.1%
Winchester 748<<locked>>80%32,256 psi63%2277 fps97.2%
Winchester StaBALL Match<<locked>>82%31,691 psi62%2247 fps95.1%

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 103 powders for 8 x 50 R loaded with the .323 | 196gr | Geco PLUS. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,615 fps; across all powders the maximum-charge window runs from 1,506 fps to 2,615 fps. Accurate 4350 gives the best case fill at 100 %, and 103 of the 103 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (355 MPa), the top charges use 64–90 %, leaving at least 10 % headroom. The 196.0 gr projectile in 0.323" calls for a 1:16.5 twist; slower twists will usually not stabilise this weight. Accurate 4350, Alliant Reloder-16, Alliant Reloder-17 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 52, Hodgdon LEVERevolution, ReloadSwiss RS 60 rank at the top here: for 8 x 50 R with the .323 | 196gr | Geco PLUS they combine a high case fill with complete burn and sit in the upper velocity band. As outliers, Accurate 2700, Accurate 4350, Alliant Reloder-16 burn incompletely and react more sensitively to barrel length and temperature. Always begin at the start load and work up in small increments while checking case and primer for pressure signs.

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