Load data for .260 Rem. + .264 | 140gr | Speer Grand Slam

.260 Rem. cartridge drawing
Speer logo

Load Specifications

Bullet Manufacturer:Speer
Bullet Weight:140 gr
Bullet Diameter:0.264"
Bullet Length:<<locked>>
Case Length (l3):2.03"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:55 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:12.0

Load data in caliber .260 Rem. with .264 | 140gr | Speer Grand Slam bullet and 94 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are ReloadSwiss RS 70, Alliant Reloder-17 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.

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 2495<<locked>>84%53,548 psi89%2582 fps100%
Accurate 2700<<locked>>84%51,779 psi86%2592 fps97.9%
Accurate 3100ᴾ<<locked>>100%47,543 psi79%2615 fps98.7%
Accurate 4064<<locked>>86%53,795 psi89%2631 fps100%
Accurate 4350<<locked>>94%53,737 psi89%2723 fps100%
ADI AR 2206H<<locked>>82%53,258 psi88%2654 fps100%
ADI AR 2208<<locked>>88%54,114 psi90%2657 fps100%
ADI AR 2209<<locked>>98%51,677 psi86%2710 fps97.2%
Alliant Power Pro 2000-MR<<locked>>84%52,910 psi88%2772 fps100%
Alliant Power Pro Varmint<<locked>>98%51,387 psi85%2703 fps97.2%
Alliant Reloder- TS 15.5<<locked>>86%51,517 psi86%2638 fps100%
Alliant Reloder-15<<locked>>84%51,706 psi86%2654 fps100%
Alliant Reloder-16<<locked>>96%54,404 psi90%2772 fps100%
Alliant Reloder-17<<locked>>90%52,272 psi87%2756 fps100%
Alliant Reloder-19ᴾ<<locked>>100%53,896 psi90%2746 fps97.7%
Alliant Reloder-22ᴾ<<locked>>100%47,485 psi79%2690 fps96.6%
Alliant Reloder-23ᴾ<<locked>>100%44,744 psi74%2641 fps100%
Alliant Reloder-25ᴾ<<locked>>100%39,421 psi65%2556 fps97.7%
Alliant Reloder-26ᴾ<<locked>>100%50,633 psi84%2812 fps99.9%
Baschieri & Pellagri 107<<locked>>82%52,765 psi88%2671 fps100%
Bofors RP3<<locked>>86%51,721 psi86%2648 fps100%
Bofors RP5ᴾ<<locked>>100%47,485 psi79%2690 fps96.6%
Bofors RP7<<locked>>90%51,822 psi86%2628 fps98.1%
Hodgdon H380<<locked>>86%52,649 psi87%2664 fps99.8%
Hodgdon H414<<locked>>92%52,765 psi88%2723 fps98.8%
Hodgdon H4350<<locked>>90%52,953 psi88%2684 fps97.8%
Hodgdon H4895<<locked>>82%53,838 psi89%2664 fps100%
Hodgdon Hybrid 100V<<locked>>96%51,416 psi85%2657 fps100%
Hodgdon LEVERevolution<<locked>>84%53,505 psi89%2697 fps100%
Hodgdon Superformance<<locked>>92%52,417 psi87%2753 fps98.5%
Hodgdon TrailBossᴾ<<locked>>100%36,071 psi60%1637 fps100%
Hodgdon VARGET<<locked>>82%51,619 psi86%2618 fps100%
IMR 3031<<locked>>82%54,085 psi90%2641 fps100%
IMR 4064<<locked>>86%53,940 psi90%2644 fps100%
IMR 4166 Enduron<<locked>>84%53,345 psi89%2628 fps98.8%
IMR 4350<<locked>>94%52,141 psi87%2654 fps98.2%
IMR 4451 Enduron<<locked>>90%53,258 psi88%2654 fps98.7%
IMR 4831<<locked>>96%54,157 psi90%2717 fps100%
IMR 4895<<locked>>84%53,026 psi88%2680 fps100%
Lovex D073.6<<locked>>82%53,127 psi88%2631 fps100%
Lovex S060<<locked>>82%52,576 psi87%2589 fps100%
Lovex S062<<locked>>86%53,650 psi89%2635 fps100%
Lovex S065<<locked>>92%53,084 psi88%2651 fps99.5%
Lovex S070<<locked>>94%54,201 psi90%2690 fps99.1%
Lovex S071ᴾ<<locked>>100%39,479 psi66%2474 fps97.1%
Norma 201<<locked>>82%52,156 psi87%2605 fps100%
Norma 202<<locked>>82%52,721 psi88%2602 fps100%
Norma 203B<<locked>>86%54,273 psi90%2687 fps100%
Norma 204<<locked>>94%52,721 psi88%2703 fps97.2%
Norma MRPᴾ<<locked>>100%50,198 psi83%2769 fps98.5%
Norma URP<<locked>>94%52,605 psi87%2710 fps99.9%
Ramshot Big Game<<locked>>84%51,314 psi85%2664 fps100%
Ramshot Hunter<<locked>>94%51,416 psi85%2710 fps99.2%
ReloadSwiss RS 14ᴾ<<locked>>100%36,666 psi61%1677 fps100%
ReloadSwiss RS 50<<locked>>86%52,620 psi87%2648 fps99.1%
ReloadSwiss RS 52<<locked>>82%52,141 psi87%2713 fps100%
ReloadSwiss RS 60<<locked>>88%51,793 psi86%2749 fps100%
ReloadSwiss RS 62<<locked>>94%53,200 psi88%2743 fps99.9%
ReloadSwiss RS 70<<locked>>94%52,330 psi87%2772 fps99.9%
Rottweil R 902<<locked>>84%52,562 psi87%2602 fps100%
Rottweil R 903<<locked>>88%51,967 psi86%2644 fps100%
Rottweil R 904<<locked>>98%53,417 psi89%2680 fps96.4%
Rottweil R 905ᴾ<<locked>>100%53,098 psi88%2733 fps97.7%
Rottweil R 907<<locked>>90%51,822 psi86%2628 fps98.1%
Shooters World Long Rifle<<locked>>92%53,084 psi88%2651 fps99.5%
Shooters World Match Rifle<<locked>>82%53,127 psi88%2631 fps100%
Shooters World Precision<<locked>>86%53,650 psi89%2635 fps100%
Shooters World SW4350<<locked>>94%54,201 psi90%2690 fps99.1%
SNPE Vectan SP 11<<locked>>88%53,272 psi89%2700 fps100%
SNPE Vectan SP 7<<locked>>82%54,143 psi90%2657 fps99.8%
SNPE Vectan SP 9<<locked>>82%51,605 psi86%2628 fps100%
SNPE Vectan Tubal 3000<<locked>>82%52,953 psi88%2536 fps100%
SNPE Vectan Tubal 5000<<locked>>88%53,505 psi89%2539 fps100%
SNPE Vectan Tubal 7000<<locked>>92%52,852 psi88%2605 fps98.7%
SNPE Vectan Tubal 8000ᴾ<<locked>>100%52,605 psi87%2730 fps97.6%
Somchem S335<<locked>>82%52,823 psi88%2539 fps100%
Somchem S341<<locked>>82%53,708 psi89%2648 fps100%
Somchem S355<<locked>>88%52,315 psi87%2644 fps100%
Somchem S365<<locked>>96%50,937 psi85%2710 fps100%
Somchem S385ᴾ<<locked>>100%53,708 psi89%2710 fps98.5%
Vihtavuori N133<<locked>>82%53,403 psi89%2523 fps100%
Vihtavuori N135<<locked>>84%52,663 psi87%2566 fps100%
Vihtavuori N140<<locked>>84%53,185 psi88%2582 fps100%
Vihtavuori N150<<locked>>90%53,388 psi89%2618 fps100%
Vihtavuori N160<<locked>>92%51,619 psi86%2661 fps99.9%
Vihtavuori N165ᴾ<<locked>>100%46,238 psi77%2582 fps96.7%
Vihtavuori N540<<locked>>84%51,198 psi85%2579 fps100%
Vihtavuori N550<<locked>>94%53,867 psi89%2710 fps99.9%
Vihtavuori N555ᴾ<<locked>>100%49,908 psi83%2710 fps100%
Winchester 6.5 StaBALL<<locked>>94%54,433 psi90%2677 fps100%
Winchester 760<<locked>>92%52,765 psi88%2723 fps98.8%
Winchester StaBALL HDᴾ<<locked>>100%40,234 psi67%2677 fps100%
Winchester StaBALL Match<<locked>>82%51,416 psi85%2635 fps100%
Winchester Supreme 780ᴾ<<locked>>100%50,473 psi84%2654 fps96.9%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2495<<locked>>80%47,050 psi78%2493 fps100%
Accurate 2700<<locked>>80%45,513 psi76%2487 fps96.6%
Accurate 3100<<locked>>90%33,765 psi56%2356 fps95.1%
Accurate 4064<<locked>>80%44,541 psi74%2497 fps100%
Accurate 4350<<locked>>80%33,301 psi55%2356 fps96.9%
ADI AR 2206H<<locked>>80%50,053 psi83%2608 fps100%
ADI AR 2208<<locked>>80%42,511 psi71%2470 fps99.3%
ADI AR 2209<<locked>>94%45,194 psi75%2595 fps95.6%
Alliant Power Pro 2000-MR<<locked>>80%46,209 psi77%2664 fps99.8%
Alliant Power Pro Varmint<<locked>>94%45,310 psi75%2602 fps95.8%
Alliant Reloder- TS 15.5<<locked>>80%42,670 psi71%2493 fps99.9%
Alliant Reloder-15<<locked>>80%45,658 psi76%2556 fps99.7%
Alliant Reloder-16<<locked>>80%33,040 psi55%2365 fps97%
Alliant Reloder-1738.4 gr80%37,130 psi62%2487 fps99.4%
Alliant Reloder-19<<locked>>94%44,730 psi74%2592 fps95.7%
Alliant Reloder-22<<locked>>98%44,599 psi74%2638 fps95.8%
Alliant Reloder-23<<locked>>82%25,686 psi43%2185 fps95%
Alliant Reloder-25<<locked>>96%34,664 psi58%2444 fps95.9%
Alliant Reloder-26<<locked>>86%31,082 psi52%2398 fps95.2%
Baschieri & Pellagri 107<<locked>>80%49,647 psi82%2621 fps99.8%
Bofors RP3<<locked>>80%42,685 psi71%2500 fps100%
Bofors RP5<<locked>>98%44,599 psi74%2638 fps95.8%
Bofors RP7<<locked>>82%40,422 psi67%2428 fps95.5%
Hodgdon H380<<locked>>80%43,250 psi72%2510 fps98.8%
Hodgdon H414<<locked>>82%37,884 psi63%2454 fps95.5%
Hodgdon H4350<<locked>>84%43,685 psi73%2526 fps95.7%
Hodgdon H4895<<locked>>80%50,618 psi84%2615 fps100%
Hodgdon Hybrid 100V<<locked>>80%30,603 psi51%2270 fps97.7%
Hodgdon LEVERevolution<<locked>>80%46,818 psi78%2598 fps100%
Hodgdon Superformance<<locked>>84%39,624 psi66%2520 fps95.5%
Hodgdon TrailBoss<<locked>>80%26,861 psi45%1460 fps100%
Hodgdon VARGET<<locked>>80%48,153 psi80%2566 fps100%
IMR 3031<<locked>>80%50,676 psi84%2595 fps100%
IMR 4064<<locked>>80%44,643 psi74%2500 fps99.7%
IMR 4166 Enduron<<locked>>80%46,876 psi78%2523 fps97.7%
IMR 4350<<locked>>86%40,756 psi68%2457 fps95.7%
IMR 4451 Enduron<<locked>>80%39,247 psi65%2405 fps95.7%
IMR 4831<<locked>>80%32,126 psi53%2313 fps96.5%
IMR 4895<<locked>>80%46,833 psi78%2582 fps100%
Lovex D073.6<<locked>>80%49,864 psi83%2585 fps100%
Lovex S060<<locked>>80%49,472 psi82%2539 fps100%
Lovex S062<<locked>>80%44,860 psi75%2500 fps100%
Lovex S065<<locked>>80%36,941 psi61%2362 fps96.6%
Lovex S070<<locked>>82%37,420 psi62%2392 fps95.5%
Lovex S071<<locked>>96%34,809 psi58%2379 fps95.6%
Norma 201<<locked>>80%49,023 psi81%2556 fps100%
Norma 202<<locked>>80%49,516 psi82%2556 fps100%
Norma 203B<<locked>>80%45,034 psi75%2543 fps99.9%
Norma 204<<locked>>90%46,093 psi77%2595 fps95.8%
Norma MRP<<locked>>92%38,363 psi64%2539 fps95.3%
Norma URP<<locked>>80%33,446 psi56%2356 fps96.8%
Ramshot Big Game<<locked>>80%44,962 psi75%2562 fps99.8%
Ramshot Hunter<<locked>>82%34,621 psi58%2392 fps95.2%
ReloadSwiss RS 14<<locked>>80%27,485 psi46%1499 fps100%
ReloadSwiss RS 50<<locked>>80%43,221 psi72%2487 fps97.5%
ReloadSwiss RS 52<<locked>>80%48,863 psi81%2661 fps99.9%
ReloadSwiss RS 6038.4 gr80%39,479 psi66%2543 fps100%
ReloadSwiss RS 62<<locked>>80%32,851 psi55%2369 fps96.3%
ReloadSwiss RS 7039 gr80%32,619 psi54%2372 fps95.4%
Rottweil R 902<<locked>>80%46,746 psi78%2513 fps100%
Rottweil R 903<<locked>>80%40,161 psi67%2451 fps99.7%
Rottweil R 904<<locked>>96%50,154 psi83%2631 fps95.6%
Rottweil R 905<<locked>>94%43,337 psi72%2572 fps95.5%
Rottweil R 907<<locked>>82%40,422 psi67%2428 fps95.5%
Shooters World Long Rifle<<locked>>80%36,941 psi61%2362 fps96.6%
Shooters World Match Rifle<<locked>>80%49,864 psi83%2585 fps100%
Shooters World Precision<<locked>>80%44,860 psi75%2500 fps100%
Shooters World SW4350<<locked>>82%37,420 psi62%2392 fps95.5%
SNPE Vectan SP 11<<locked>>80%41,147 psi68%2500 fps99.5%
SNPE Vectan SP 7<<locked>>80%50,517 psi84%2605 fps99.6%
SNPE Vectan SP 9<<locked>>80%48,530 psi81%2582 fps100%
SNPE Vectan Tubal 3000<<locked>>80%50,009 psi83%2497 fps100%
SNPE Vectan Tubal 5000<<locked>>80%42,047 psi70%2375 fps100%
SNPE Vectan Tubal 7000<<locked>>82%38,551 psi64%2359 fps95.7%
SNPE Vectan Tubal 8000<<locked>>94%42,917 psi71%2566 fps95.3%
Somchem S335<<locked>>80%49,748 psi83%2497 fps100%
Somchem S341<<locked>>80%50,502 psi84%2598 fps100%
Somchem S355<<locked>>80%40,741 psi68%2451 fps99.7%
Somchem S365<<locked>>80%30,037 psi50%2313 fps98.8%
Somchem S385<<locked>>90%38,827 psi65%2454 fps95%
Vihtavuori N133<<locked>>80%50,488 psi84%2484 fps100%
Vihtavuori N135<<locked>>80%46,630 psi77%2484 fps100%
Vihtavuori N140<<locked>>80%46,963 psi78%2497 fps100%
Vihtavuori N150<<locked>>80%38,827 psi65%2388 fps99.9%
Vihtavuori N160<<locked>>80%34,824 psi58%2356 fps97.2%
Vihtavuori N165<<locked>>96%40,712 psi68%2480 fps95.1%
Vihtavuori N540<<locked>>80%45,266 psi75%2490 fps100%
Vihtavuori N550<<locked>>80%34,316 psi57%2356 fps96.8%
Vihtavuori N555<<locked>>82%27,586 psi46%2254 fps95.2%
Winchester 6.5 StaBALL<<locked>>80%34,258 psi57%2333 fps98.9%
Winchester 760<<locked>>82%37,884 psi63%2454 fps95.5%
Winchester StaBALL HD<<locked>>86%25,599 psi43%2257 fps95.5%
Winchester StaBALL Match<<locked>>80%48,356 psi80%2589 fps100%
Winchester Supreme 780<<locked>>96%43,932 psi73%2543 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 94 powders for .260 Rem. loaded with the .264 | 140gr | Speer Grand Slam. Alliant Reloder-26 delivers the highest muzzle velocity at 2,812 fps; across all powders the maximum-charge window runs from 1,637 fps to 2,812 fps. Accurate 3100 gives the best case fill at 100 %, and 94 of the 94 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 60–90 %, leaving at least 10 % headroom. The 140.0 gr projectile in 0.264" calls for a 1:12.0 twist; slower twists will usually not stabilise this weight. Accurate 3100, Alliant Reloder-19, Alliant Reloder-22 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, Alliant Reloder-17, ReloadSwiss RS 60 rank at the top here: for .260 Rem. with the .264 | 140gr | Speer Grand Slam 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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