Load data for .338 Blaser Mag. + .338 | 260gr | CutEdge Maximus

.338 Blaser Mag. cartridge drawing
Cutting Edge logo

Load Specifications

Bullet Manufacturer:Cutting Edge
Bullet Weight:260 gr
Bullet Diameter:0.338"
Bullet Length:<<locked>>
Case Length (l3):2.5078"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:92.6 Grains of Water
Primer Size:Large Rifle Magnum (LRM)
Barrel Length:25.6"
Max. allowed Pressure:60,916 psi
Recommended Twist Rate:1:11.0

Load data in caliber .338 Blaser Mag. with .338 | 260gr | CutEdge Maximus bullet and 110 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 60, ReloadSwiss RS 70 and Alliant Reloder-16.

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: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>86%54,114 psi89%2421 fps100%
Accurate 2520<<locked>>82%54,157 psi89%2470 fps100%
Accurate 2700<<locked>>90%54,201 psi89%2454 fps98.9%
Accurate 3100ᴾ<<locked>>100%44,657 psi73%2421 fps99%
Accurate 4064<<locked>>88%54,346 psi89%2470 fps100%
Accurate 4350<<locked>>96%54,549 psi90%2569 fps100%
ADI AR 2206H<<locked>>84%54,607 psi90%2503 fps100%
ADI AR 2208<<locked>>88%52,330 psi86%2461 fps100%
ADI AR 2209ᴾ<<locked>>100%52,750 psi87%2559 fps98.2%
ADI Benchmark 8208<<locked>>82%53,388 psi88%2451 fps100%
Alliant AR-Comp<<locked>>82%54,882 psi90%2418 fps100%
Alliant Power Pro 2000-MR<<locked>>86%54,317 psi89%2618 fps100%
Alliant Reloder- TS 15.5<<locked>>88%52,518 psi86%2480 fps100%
Alliant Reloder-15<<locked>>86%52,895 psi87%2500 fps100%
Alliant Reloder-16<<locked>>96%52,344 psi86%2572 fps100%
Alliant Reloder-17<<locked>>92%53,272 psi87%2598 fps100%
Alliant Reloder-19ᴾ<<locked>>100%51,517 psi85%2549 fps98.1%
Alliant Reloder-22ᴾ<<locked>>100%45,020 psi74%2493 fps97.1%
Alliant Reloder-23ᴾ<<locked>>100%42,525 psi70%2448 fps100%
Alliant Reloder-25ᴾ<<locked>>100%37,318 psi61%2372 fps98.1%
Alliant Reloder-26ᴾ<<locked>>100%47,819 psi79%2608 fps100%
Baschieri & Pellagri 107<<locked>>84%54,288 psi89%2520 fps100%
Bofors RP15ᴾ<<locked>>100%41,423 psi68%2428 fps95.9%
Bofors RP3<<locked>>88%52,910 psi87%2493 fps100%
Bofors RP5ᴾ<<locked>>100%45,020 psi74%2493 fps97.1%
Bofors RP7<<locked>>92%52,997 psi87%2480 fps98.9%
Hodgdon Benchmark<<locked>>82%54,969 psi90%2431 fps100%
Hodgdon BL-C2<<locked>>82%52,808 psi87%2480 fps100%
Hodgdon H380<<locked>>88%53,664 psi88%2510 fps100%
Hodgdon H414<<locked>>90%51,445 psi84%2539 fps99.3%
Hodgdon H4350<<locked>>94%52,504 psi86%2510 fps98.4%
Hodgdon H4895<<locked>>82%51,634 psi85%2464 fps100%
Hodgdon Hybrid 100V<<locked>>98%52,243 psi86%2503 fps100%
Hodgdon LEVERevolution<<locked>>88%54,998 psi90%2546 fps100%
Hodgdon Superformance<<locked>>94%53,722 psi88%2605 fps99.3%
Hodgdon TrailBossᴾ<<locked>>100%35,810 psi59%1503 fps100%
Hodgdon VARGET<<locked>>86%51,909 psi85%2454 fps100%
IMR 3031<<locked>>86%54,201 psi89%2467 fps100%
IMR 4064<<locked>>90%54,346 psi89%2477 fps100%
IMR 4166 Enduron<<locked>>90%53,635 psi88%2461 fps99.3%
IMR 4350<<locked>>96%53,374 psi88%2510 fps99%
IMR 4451 Enduron<<locked>>92%54,911 psi90%2510 fps99.4%
IMR 4831ᴾ<<locked>>100%52,170 psi86%2523 fps100%
IMR 4895<<locked>>86%54,273 psi89%2526 fps100%
IMR 4955 Enduronᴾ<<locked>>100%52,533 psi86%2500 fps96.5%
IMR 7828 SSCᴾ<<locked>>100%47,964 psi79%2526 fps96%
IMR 8208 XBR<<locked>>82%53,388 psi88%2451 fps100%
Lovex D073.6<<locked>>84%54,418 psi89%2474 fps100%
Lovex S060<<locked>>84%54,056 psi89%2434 fps100%
Lovex S062<<locked>>88%54,868 psi90%2480 fps100%
Lovex S065<<locked>>94%54,331 psi89%2500 fps99.9%
Lovex S070<<locked>>94%51,779 psi85%2490 fps99.3%
Lovex S071ᴾ<<locked>>100%36,985 psi61%2290 fps97.4%
Norma 201<<locked>>84%53,272 psi87%2448 fps100%
Norma 202<<locked>>84%53,969 psi89%2448 fps100%
Norma 203B<<locked>>86%52,127 psi86%2487 fps100%
Norma 204<<locked>>96%53,751 psi88%2556 fps98.2%
Norma MRPᴾ<<locked>>100%47,558 psi78%2569 fps98.8%
Norma URP<<locked>>96%53,635 psi88%2556 fps100%
Ramshot Big Game<<locked>>86%52,533 psi86%2513 fps100%
Ramshot Grandᴾ<<locked>>100%51,053 psi84%2582 fps97%
Ramshot Hunter<<locked>>96%52,185 psi86%2559 fps99.7%
Ramshot Magnumᴾ<<locked>>100%43,714 psi72%2448 fps97.1%
Ramshot TAC<<locked>>82%53,447 psi88%2480 fps99.9%
Ramshot Wild Boar<<locked>>82%53,345 psi88%2493 fps100%
ReloadSwiss RS 14ᴾ<<locked>>100%36,274 psi60%1535 fps100%
ReloadSwiss RS 50<<locked>>88%53,940 psi89%2500 fps99.6%
ReloadSwiss RS 52<<locked>>84%53,476 psi88%2559 fps100%
ReloadSwiss RS 60<<locked>>90%52,968 psi87%2592 fps100%
ReloadSwiss RS 62<<locked>>96%54,186 psi89%2592 fps100%
ReloadSwiss RS 70<<locked>>96%53,345 psi88%2618 fps100%
Rottweil R 901<<locked>>82%53,969 psi89%2421 fps100%
Rottweil R 902<<locked>>86%53,867 psi88%2448 fps100%
Rottweil R 903<<locked>>90%52,808 psi87%2487 fps100%
Rottweil R 904ᴾ<<locked>>100%54,520 psi90%2533 fps97.4%
Rottweil R 905ᴾ<<locked>>100%50,401 psi83%2533 fps98.1%
Rottweil R 907<<locked>>92%52,997 psi87%2480 fps98.9%
Shooters World Long Rifle<<locked>>94%54,331 psi89%2500 fps99.9%
Shooters World Match Rifle<<locked>>84%54,418 psi89%2474 fps100%
Shooters World Precision<<locked>>88%54,868 psi90%2480 fps100%
Shooters World SW4350<<locked>>94%51,779 psi85%2490 fps99.3%
SNPE Vectan SP 11<<locked>>90%54,607 psi90%2546 fps100%
SNPE Vectan SP 7<<locked>>82%51,909 psi85%2461 fps99.9%
SNPE Vectan SP 9<<locked>>84%52,982 psi87%2480 fps100%
SNPE Vectan Tubal 3000<<locked>>84%54,534 psi90%2385 fps100%
SNPE Vectan Tubal 5000<<locked>>90%54,998 psi90%2388 fps100%
SNPE Vectan Tubal 7000<<locked>>94%54,346 psi89%2461 fps99.4%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%49,922 psi82%2526 fps98%
Somchem S335<<locked>>84%54,099 psi89%2385 fps100%
Somchem S341<<locked>>82%51,764 psi85%2451 fps100%
Somchem S355<<locked>>90%53,229 psi87%2487 fps100%
Somchem S361<<locked>>98%52,518 psi86%2477 fps96.2%
Somchem S365<<locked>>98%51,793 psi85%2552 fps100%
Somchem S385ᴾ<<locked>>100%50,937 psi84%2510 fps98.8%
Unknown powder<<locked>>94%54,491 psi89%2562 fps100%
Vihtavuori N133<<locked>>84%54,955 psi90%2369 fps100%
Vihtavuori N135<<locked>>86%53,882 psi88%2408 fps100%
Vihtavuori N140<<locked>>86%54,491 psi89%2428 fps100%
Vihtavuori N150<<locked>>92%54,447 psi89%2464 fps100%
Vihtavuori N160<<locked>>94%52,402 psi86%2503 fps100%
Vihtavuori N165ᴾ<<locked>>100%43,932 psi72%2392 fps97.1%
Vihtavuori N530<<locked>>82%53,737 psi88%2451 fps100%
Vihtavuori N540<<locked>>86%52,373 psi86%2428 fps100%
Vihtavuori N550<<locked>>96%54,781 psi90%2556 fps100%
Vihtavuori N555ᴾ<<locked>>100%47,123 psi77%2510 fps100%
Vihtavuori N560ᴾ<<locked>>100%48,385 psi79%2556 fps95.8%
Winchester 6.5 StaBALL<<locked>>94%52,243 psi86%2484 fps100%
Winchester 760<<locked>>90%51,445 psi84%2539 fps99.3%
Winchester StaBALL HDᴾ<<locked>>100%37,956 psi62%2484 fps100%
Winchester Supreme 780ᴾ<<locked>>100%53,243 psi87%2533 fps98.2%

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

Start Load - Barrel Length: 25.6"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%44,454 psi73%2297 fps100%
Accurate 2520<<locked>>80%50,575 psi83%2428 fps100%
Accurate 2700<<locked>>80%38,928 psi64%2215 fps95.9%
Accurate 3100<<locked>>90%31,618 psi52%2182 fps95.7%
Accurate 4064<<locked>>80%42,090 psi69%2303 fps100%
Accurate 4350<<locked>>80%31,096 psi51%2175 fps97.3%
ADI AR 2206H<<locked>>80%48,022 psi79%2411 fps100%
ADI AR 2208<<locked>>80%40,959 psi67%2287 fps99.6%
ADI AR 2209<<locked>>92%40,683 psi67%2362 fps95.4%
ADI Benchmark 8208<<locked>>80%50,198 psi82%2408 fps100%
Alliant AR-Comp<<locked>>80%51,358 psi84%2379 fps100%
Alliant Power Pro 2000-MR<<locked>>80%44,179 psi73%2464 fps99.9%
Alliant Reloder- TS 15.5<<locked>>80%40,625 psi67%2303 fps100%
Alliant Reloder-15<<locked>>80%43,627 psi72%2362 fps99.9%
Alliant Reloder-1651.8 gr80%31,473 psi52%2192 fps97.6%
Alliant Reloder-17<<locked>>80%35,157 psi58%2303 fps99.7%
Alliant Reloder-19<<locked>>92%39,987 psi66%2356 fps95.4%
Alliant Reloder-22<<locked>>96%39,465 psi65%2392 fps95.5%
Alliant Reloder-23<<locked>>82%24,105 psi40%2024 fps95.7%
Alliant Reloder-25<<locked>>94%30,922 psi51%2218 fps95.6%
Alliant Reloder-26<<locked>>86%29,037 psi48%2221 fps95.8%
Baschieri & Pellagri 107<<locked>>80%47,587 psi78%2428 fps99.9%
Bofors RP15<<locked>>98%38,885 psi64%2379 fps95.1%
Bofors RP3<<locked>>80%40,437 psi66%2313 fps100%
Bofors RP5<<locked>>96%39,465 psi65%2392 fps95.5%
Bofors RP7<<locked>>80%36,172 psi59%2198 fps95.3%
Hodgdon Benchmark<<locked>>80%51,764 psi85%2388 fps100%
Hodgdon BL-C2<<locked>>80%49,385 psi81%2438 fps100%
Hodgdon H380<<locked>>80%41,220 psi68%2323 fps99.1%
Hodgdon H414<<locked>>80%36,477 psi60%2287 fps96.3%
Hodgdon H4350<<locked>>84%38,450 psi63%2277 fps95.3%
Hodgdon H4895<<locked>>80%48,515 psi80%2418 fps100%
Hodgdon Hybrid 100V<<locked>>80%28,935 psi48%2103 fps98.2%
Hodgdon LEVERevolution<<locked>>80%42,250 psi69%2365 fps100%
Hodgdon Superformance<<locked>>82%35,056 psi58%2280 fps95.1%
Hodgdon TrailBoss<<locked>>80%26,614 psi44%1339 fps100%
Hodgdon VARGET<<locked>>80%43,207 psi71%2326 fps100%
IMR 3031<<locked>>80%44,614 psi73%2343 fps100%
IMR 4064<<locked>>80%40,161 psi66%2264 fps99.6%
IMR 4166 Enduron<<locked>>80%39,769 psi65%2241 fps97%
IMR 4350<<locked>>84%36,651 psi60%2231 fps95.5%
IMR 4451 Enduron<<locked>>80%37,840 psi62%2231 fps96.4%
IMR 4831<<locked>>80%27,543 psi45%2073 fps95.9%
IMR 4895<<locked>>80%44,715 psi73%2388 fps100%
IMR 4955 Enduron<<locked>>96%46,209 psi76%2402 fps95%
IMR 7828 SSC<<locked>>98%44,947 psi74%2474 fps95.1%
IMR 8208 XBR<<locked>>80%50,198 psi82%2408 fps100%
Lovex D073.6<<locked>>80%47,442 psi78%2385 fps100%
Lovex S060<<locked>>80%47,834 psi79%2349 fps100%
Lovex S062<<locked>>80%42,917 psi70%2313 fps100%
Lovex S065<<locked>>80%35,186 psi58%2188 fps97.1%
Lovex S070<<locked>>80%33,228 psi55%2165 fps95.2%
Lovex S071<<locked>>94%30,356 psi50%2152 fps95.2%
Norma 201<<locked>>80%47,007 psi77%2362 fps100%
Norma 202<<locked>>80%47,384 psi78%2359 fps100%
Norma 203B<<locked>>80%42,960 psi71%2352 fps100%
Norma 204<<locked>>88%41,002 psi67%2352 fps95.5%
Norma MRP<<locked>>90%33,910 psi56%2303 fps95%
Norma URP<<locked>>80%31,531 psi52%2178 fps97.3%
Ramshot Big Game<<locked>>80%42,844 psi70%2372 fps99.9%
Ramshot Grand<<locked>>96%43,918 psi72%2464 fps95.1%
Ramshot Hunter<<locked>>82%32,808 psi54%2215 fps95.9%
Ramshot Magnum<<locked>>96%37,652 psi62%2336 fps95.2%
Ramshot TAC<<locked>>80%50,111 psi82%2434 fps99.7%
Ramshot Wild Boar<<locked>>80%49,966 psi82%2448 fps100%
ReloadSwiss RS 14<<locked>>80%27,108 psi45%1375 fps100%
ReloadSwiss RS 50<<locked>>80%41,568 psi68%2310 fps98%
ReloadSwiss RS 52<<locked>>80%46,470 psi76%2461 fps100%
ReloadSwiss RS 6055.8 gr80%37,478 psi62%2352 fps100%
ReloadSwiss RS 62<<locked>>80%30,995 psi51%2195 fps96.9%
ReloadSwiss RS 7056.7 gr80%30,850 psi51%2198 fps96%
Rottweil R 901<<locked>>80%50,995 psi84%2382 fps100%
Rottweil R 902<<locked>>80%44,614 psi73%2320 fps100%
Rottweil R 903<<locked>>80%37,927 psi62%2264 fps99.9%
Rottweil R 904<<locked>>94%44,846 psi74%2388 fps95.4%
Rottweil R 905<<locked>>92%38,551 psi63%2333 fps95.3%
Rottweil R 907<<locked>>80%36,172 psi59%2198 fps95.3%
Shooters World Long Rifle<<locked>>80%35,186 psi58%2188 fps97.1%
Shooters World Match Rifle<<locked>>80%47,442 psi78%2385 fps100%
Shooters World Precision<<locked>>80%42,917 psi70%2313 fps100%
Shooters World SW4350<<locked>>80%33,228 psi55%2165 fps95.2%
SNPE Vectan SP 11<<locked>>80%39,059 psi64%2313 fps99.7%
SNPE Vectan SP 7<<locked>>80%48,515 psi80%2411 fps99.8%
SNPE Vectan SP 9<<locked>>80%46,412 psi76%2385 fps100%
SNPE Vectan Tubal 3000<<locked>>80%48,167 psi79%2303 fps100%
SNPE Vectan Tubal 5000<<locked>>80%40,292 psi66%2195 fps100%
SNPE Vectan Tubal 7000<<locked>>80%34,229 psi56%2133 fps95.4%
SNPE Vectan Tubal 8000<<locked>>92%38,232 psi63%2329 fps95.1%
Somchem S335<<locked>>80%47,892 psi79%2306 fps100%
Somchem S341<<locked>>80%48,399 psi79%2405 fps100%
Somchem S355<<locked>>80%38,827 psi64%2267 fps99.8%
Somchem S361<<locked>>96%49,139 psi81%2431 fps95.4%
Somchem S365<<locked>>80%28,195 psi46%2139 fps99.1%
Somchem S385<<locked>>90%36,637 psi60%2274 fps95.6%
Unknown powder<<locked>>80%34,316 psi56%2228 fps97.5%
Vihtavuori N133<<locked>>80%48,675 psi80%2293 fps100%
Vihtavuori N135<<locked>>80%44,498 psi73%2290 fps100%
Vihtavuori N140<<locked>>80%44,918 psi74%2303 fps100%
Vihtavuori N150<<locked>>80%36,840 psi60%2208 fps100%
Vihtavuori N160<<locked>>80%32,924 psi54%2178 fps97.6%
Vihtavuori N165<<locked>>96%38,638 psi63%2300 fps95.6%
Vihtavuori N530<<locked>>80%50,415 psi83%2405 fps100%
Vihtavuori N540<<locked>>80%43,337 psi71%2303 fps100%
Vihtavuori N550<<locked>>80%32,445 psi53%2185 fps97.3%
Vihtavuori N555<<locked>>82%25,817 psi42%2087 fps95.8%
Vihtavuori N560<<locked>>98%45,223 psi74%2503 fps95%
Winchester 6.5 StaBALL<<locked>>80%32,547 psi53%2159 fps99.2%
Winchester 760<<locked>>80%36,477 psi60%2287 fps96.3%
Winchester StaBALL HD<<locked>>86%23,960 psi39%2093 fps96.3%
Winchester Supreme 780<<locked>>92%40,016 psi66%2326 fps95.3%

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 110 powders for .338 Blaser Mag. loaded with the .338 | 260gr | CutEdge Maximus. Alliant Power Pro 2000-MR delivers the highest muzzle velocity at 2,618 fps; across all powders the maximum-charge window runs from 1,503 fps to 2,618 fps. Accurate 3100 gives the best case fill at 100 %, and 110 of the 110 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (420 MPa), the top charges use 59–90 %, leaving at least 10 % headroom. The 260.0 gr projectile in 0.338" calls for a 1:11.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, ADI AR 2209, Alliant Reloder-19 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, ReloadSwiss RS 70, Alliant Reloder-16 rank at the top here: for .338 Blaser Mag. with the .338 | 260gr | CutEdge Maximus 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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