Load data for .308 Win. + .308 | 200gr | Speer Grand Slam

.308 Win. cartridge drawing
Speer logo

Load Specifications

Bullet Manufacturer:Speer
Bullet Weight:200 gr
Bullet Diameter:0.308"
Bullet Length:<<locked>>
Case Length (l3):2.014"
Cartridge Length (C.O.L.):<<locked>>
Case Capacity:56 Grains of Water
Primer Size:Large Rifle (LR)
Barrel Length:24"
Max. allowed Pressure:60,191 psi
Recommended Twist Rate:1:14.5

Load data in caliber .308 Win. with .308 | 200gr | Speer Grand Slam bullet and 93 powders. The key underlying parameters are shown in the table above. The recommended powders for this cartridge and bullet combination are Alliant Power Pro 2000-MR, ReloadSwiss RS 52 and Hodgdon LEVERevolution.

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: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>88%51,909 psi86%2320 fps100%
Accurate 2460<<locked>>86%53,258 psi88%2379 fps100%
Accurate 2495<<locked>>94%51,619 psi86%2369 fps100%
Accurate 2520<<locked>>88%51,068 psi85%2388 fps100%
Accurate 4064<<locked>>96%51,459 psi85%2405 fps100%
Accurate 4350ᴾ<<locked>>100%43,236 psi72%2359 fps97.4%
Accurate LT-30<<locked>>82%51,967 psi86%2270 fps100%
Accurate LT-32<<locked>>82%52,373 psi87%2290 fps100%
ADI AR 2206H<<locked>>92%53,911 psi90%2441 fps99.7%
ADI AR 2208<<locked>>96%51,517 psi86%2392 fps99.1%
ADI AR 2219<<locked>>82%52,011 psi86%2375 fps100%
ADI Benchmark 8208<<locked>>90%53,301 psi89%2402 fps100%
Alliant AR-Comp<<locked>>90%52,605 psi87%2382 fps100%
Alliant Power Pro 1200-R<<locked>>84%51,372 psi85%2444 fps99.8%
Alliant Power Pro 2000-MR<<locked>>94%52,939 psi88%2533 fps99.3%
Alliant Reloder- TS 15.5<<locked>>98%53,722 psi89%2451 fps99.9%
Alliant Reloder-10x<<locked>>84%51,706 psi86%2323 fps100%
Alliant Reloder-15<<locked>>94%51,155 psi85%2425 fps99.2%
Alliant Reloder-16ᴾ<<locked>>100%44,063 psi73%2369 fps97.6%
Alliant Reloder-17ᴾ<<locked>>100%50,647 psi84%2503 fps99.8%
Baschieri & Pellagri 106<<locked>>84%54,143 psi90%2313 fps100%
Baschieri & Pellagri 107<<locked>>92%53,258 psi88%2451 fps99.1%
Bofors RP3<<locked>>98%53,708 psi89%2461 fps100%
Hodgdon Benchmark<<locked>>88%52,199 psi87%2346 fps100%
Hodgdon BL-C2<<locked>>90%51,474 psi86%2425 fps100%
Hodgdon CFE223<<locked>>88%53,476 psi89%2507 fps99.5%
Hodgdon H322<<locked>>86%53,983 psi90%2398 fps100%
Hodgdon H335<<locked>>84%51,517 psi86%2382 fps100%
Hodgdon H380<<locked>>96%52,083 psi87%2428 fps98.4%
Hodgdon H4895<<locked>>92%54,375 psi90%2451 fps99.9%
Hodgdon Hybrid 100Vᴾ<<locked>>100%40,176 psi67%2270 fps98.2%
Hodgdon LEVERevolution<<locked>>94%52,663 psi87%2474 fps99.9%
Hodgdon TrailBossᴾ<<locked>>100%34,664 psi58%1424 fps100%
Hodgdon VARGET<<locked>>92%52,272 psi87%2405 fps99.7%
IMR 3031<<locked>>92%53,272 psi89%2431 fps100%
IMR 4064<<locked>>96%54,244 psi90%2418 fps99.5%
IMR 4166 Enduron<<locked>>92%52,054 psi86%2359 fps96.1%
IMR 4198<<locked>>84%52,388 psi87%2287 fps100%
IMR 4451 Enduronᴾ<<locked>>100%53,751 psi89%2411 fps96.4%
IMR 4831ᴾ<<locked>>100%41,901 psi70%2320 fps97.2%
IMR 4895<<locked>>94%52,460 psi87%2451 fps99.6%
IMR 8208 XBR<<locked>>90%53,301 psi89%2402 fps100%
Lovex D073.5<<locked>>86%53,330 psi89%2392 fps100%
Lovex D073.6<<locked>>92%52,649 psi87%2418 fps100%
Lovex S060<<locked>>92%54,375 psi90%2379 fps99.7%
Lovex S062<<locked>>96%53,592 psi89%2418 fps100%
Lovex S065ᴾ<<locked>>100%49,269 psi82%2362 fps97.1%
Norma 201<<locked>>92%52,605 psi87%2392 fps100%
Norma 202<<locked>>92%52,837 psi88%2398 fps100%
Norma 203B<<locked>>96%53,650 psi89%2457 fps99.7%
Norma URPᴾ<<locked>>100%44,019 psi73%2362 fps97.4%
Ramshot Big Game<<locked>>96%53,896 psi90%2480 fps99.6%
Ramshot TAC<<locked>>90%53,867 psi89%2415 fps98%
Ramshot Wild Boar<<locked>>90%52,765 psi88%2431 fps99.6%
Ramshot X-Terminator<<locked>>86%51,343 psi85%2362 fps99.3%
ReloadSwiss RS 14ᴾ<<locked>>100%34,998 psi58%1460 fps100%
ReloadSwiss RS 40<<locked>>86%53,113 psi88%2388 fps100%
ReloadSwiss RS 50<<locked>>96%52,924 psi88%2411 fps97%
ReloadSwiss RS 52<<locked>>94%54,447 psi90%2526 fps99.5%
ReloadSwiss RS 60ᴾ<<locked>>100%54,172 psi90%2556 fps100%
ReloadSwiss RS 62ᴾ<<locked>>100%43,308 psi72%2379 fps97%
ReloadSwiss RS 70ᴾ<<locked>>100%44,904 psi75%2395 fps96.4%
Rottweil R 901<<locked>>90%53,650 psi89%2375 fps100%
Rottweil R 902<<locked>>94%53,055 psi88%2388 fps100%
Rottweil R 903ᴾ<<locked>>100%53,563 psi89%2454 fps99.9%
Shooters World Long Rifleᴾ<<locked>>100%49,269 psi82%2362 fps97.1%
Shooters World Match Rifle<<locked>>92%52,649 psi87%2418 fps100%
Shooters World Precision<<locked>>96%53,592 psi89%2418 fps100%
Shooters World Tactical Rifle<<locked>>84%53,113 psi88%2362 fps99.9%
SNPE Vectan SP 10<<locked>>82%52,388 psi87%2385 fps100%
SNPE Vectan SP 11<<locked>>98%52,083 psi87%2464 fps99.5%
SNPE Vectan SP 3<<locked>>84%52,707 psi88%2339 fps100%
SNPE Vectan SP 7<<locked>>90%51,343 psi85%2385 fps98.1%
SNPE Vectan SP 9<<locked>>92%52,214 psi87%2415 fps99.5%
SNPE Vectan Tubal 3000<<locked>>90%51,880 psi86%2306 fps100%
SNPE Vectan Tubal 5000<<locked>>98%54,404 psi90%2343 fps100%
Somchem S321<<locked>>88%54,172 psi90%2431 fps100%
Somchem S335<<locked>>92%53,838 psi89%2346 fps100%
Somchem S341<<locked>>90%51,082 psi85%2388 fps99.4%
Somchem S355ᴾ<<locked>>100%54,230 psi90%2451 fps99.8%
Somchem S365ᴾ<<locked>>100%39,015 psi65%2316 fps99.2%
Vihtavuori N130<<locked>>86%51,721 psi86%2280 fps100%
Vihtavuori N133<<locked>>90%51,793 psi86%2297 fps100%
Vihtavuori N135<<locked>>94%51,808 psi86%2359 fps100%
Vihtavuori N140<<locked>>94%53,330 psi89%2379 fps100%
Vihtavuori N150ᴾ<<locked>>100%52,518 psi87%2395 fps100%
Vihtavuori N160ᴾ<<locked>>100%46,137 psi77%2356 fps97.7%
Vihtavuori N530<<locked>>90%53,679 psi89%2398 fps100%
Vihtavuori N540<<locked>>94%51,343 psi85%2375 fps100%
Vihtavuori N550ᴾ<<locked>>100%45,237 psi75%2365 fps97.4%
Winchester 6.5 StaBALLᴾ<<locked>>100%47,674 psi79%2352 fps99.4%
Winchester 748<<locked>>90%52,547 psi87%2438 fps100%
Winchester StaBALL Match<<locked>>92%51,430 psi85%2418 fps99.7%

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

Start Load - Barrel Length: 24"

PowderChargeFRMaxP%V(0)z
Accurate 2015<<locked>>80%40,393 psi67%2165 fps100%
Accurate 2460<<locked>>80%43,816 psi73%2254 fps100%
Accurate 2495<<locked>>80%32,967 psi55%2093 fps100%
Accurate 2520<<locked>>80%38,885 psi65%2211 fps99.6%
Accurate 4064<<locked>>80%31,183 psi52%2080 fps99.1%
Accurate 4350<<locked>>94%35,201 psi58%2218 fps95.2%
Accurate LT-30<<locked>>80%49,052 psi81%2234 fps100%
Accurate LT-32<<locked>>80%49,429 psi82%2254 fps100%
ADI AR 2206H<<locked>>80%36,985 psi61%2169 fps97%
ADI AR 2208<<locked>>82%33,765 psi56%2093 fps95.1%
ADI AR 2219<<locked>>80%48,646 psi81%2333 fps100%
ADI Benchmark 8208<<locked>>80%38,943 psi65%2182 fps98.6%
Alliant AR-Comp<<locked>>80%37,826 psi63%2185 fps100%
Alliant Power Pro 1200-R<<locked>>80%44,918 psi75%2349 fps99.2%
Alliant Power Pro 2000-MR38 gr82%35,505 psi59%2221 fps95.1%
Alliant Reloder- TS 15.5<<locked>>80%30,589 psi51%2064 fps96%
Alliant Reloder-10x<<locked>>80%45,977 psi76%2247 fps100%
Alliant Reloder-15<<locked>>80%32,996 psi55%2110 fps95.1%
Alliant Reloder-16<<locked>>94%36,956 psi61%2234 fps95.4%
Alliant Reloder-17<<locked>>86%32,155 psi53%2159 fps95.5%
Baschieri & Pellagri 106<<locked>>80%47,674 psi79%2234 fps100%
Baschieri & Pellagri 107<<locked>>80%35,882 psi60%2169 fps95.4%
Bofors RP3<<locked>>80%29,704 psi49%2057 fps95.8%
Hodgdon Benchmark<<locked>>80%41,176 psi68%2182 fps99.3%
Hodgdon BL-C2<<locked>>80%36,912 psi61%2198 fps98.7%
Hodgdon CFE223<<locked>>80%40,611 psi67%2306 fps97.5%
Hodgdon H322<<locked>>80%44,483 psi74%2274 fps100%
Hodgdon H335<<locked>>80%44,947 psi75%2293 fps100%
Hodgdon H380<<locked>>86%37,710 psi63%2198 fps95.2%
Hodgdon H4895<<locked>>80%37,202 psi62%2182 fps97.7%
Hodgdon Hybrid 100V<<locked>>92%31,662 psi53%2100 fps95.4%
Hodgdon LEVERevolution36.4 gr80%33,301 psi55%2149 fps97%
Hodgdon TrailBoss<<locked>>80%25,570 psi42%1266 fps100%
Hodgdon VARGET<<locked>>80%35,911 psi60%2142 fps97.2%
IMR 3031<<locked>>80%36,216 psi60%2188 fps100%
IMR 4064<<locked>>80%33,112 psi55%2073 fps95.2%
IMR 4166 Enduron<<locked>>90%48,863 psi81%2313 fps95.5%
IMR 4198<<locked>>80%46,499 psi77%2215 fps100%
IMR 4451 Enduron<<locked>>96%47,718 psi79%2326 fps95.1%
IMR 4831<<locked>>96%36,695 psi61%2224 fps95.7%
IMR 4895<<locked>>80%33,707 psi56%2136 fps96.1%
IMR 8208 XBR<<locked>>80%38,943 psi65%2182 fps98.6%
Lovex D073.5<<locked>>80%43,569 psi72%2257 fps99.7%
Lovex D073.6<<locked>>80%35,259 psi59%2156 fps99.2%
Lovex S060<<locked>>80%38,014 psi63%2126 fps97.3%
Lovex S062<<locked>>80%32,793 psi54%2080 fps97.2%
Lovex S065<<locked>>94%40,988 psi68%2231 fps95.1%
Norma 201<<locked>>80%36,448 psi61%2139 fps98.1%
Norma 202<<locked>>80%36,448 psi61%2152 fps99.6%
Norma 203B<<locked>>80%32,358 psi54%2103 fps95.6%
Norma URP<<locked>>94%36,419 psi61%2224 fps95.2%
Ramshot Big Game<<locked>>82%33,968 psi56%2152 fps95.7%
Ramshot TAC<<locked>>82%41,510 psi69%2228 fps95.4%
Ramshot Wild Boar<<locked>>80%37,811 psi63%2198 fps97.2%
Ramshot X-Terminator<<locked>>80%42,308 psi70%2224 fps98%
ReloadSwiss RS 14<<locked>>80%25,991 psi43%1302 fps100%
ReloadSwiss RS 40<<locked>>80%43,772 psi73%2257 fps99.9%
ReloadSwiss RS 50<<locked>>90%43,758 psi73%2277 fps95%
ReloadSwiss RS 5236 gr80%33,968 psi56%2188 fps95.4%
ReloadSwiss RS 60<<locked>>80%28,195 psi47%2067 fps96.3%
ReloadSwiss RS 62<<locked>>96%38,014 psi63%2283 fps95.5%
ReloadSwiss RS 70<<locked>>98%42,134 psi70%2346 fps95.5%
Rottweil R 901<<locked>>80%40,161 psi67%2182 fps99.8%
Rottweil R 902<<locked>>80%34,693 psi58%2096 fps97.7%
Rottweil R 903<<locked>>82%29,820 psi50%2054 fps95.5%
Shooters World Long Rifle<<locked>>94%40,988 psi68%2231 fps95.1%
Shooters World Match Rifle<<locked>>80%35,259 psi59%2156 fps99.2%
Shooters World Precision<<locked>>80%32,793 psi54%2080 fps97.2%
Shooters World Tactical Rifle<<locked>>80%46,253 psi77%2270 fps99.4%
SNPE Vectan SP 10<<locked>>80%48,834 psi81%2339 fps100%
SNPE Vectan SP 11<<locked>>84%33,388 psi55%2146 fps95.6%
SNPE Vectan SP 3<<locked>>80%46,441 psi77%2257 fps100%
SNPE Vectan SP 7<<locked>>82%39,334 psi65%2201 fps95.5%
SNPE Vectan SP 9<<locked>>80%35,679 psi59%2146 fps96.6%
SNPE Vectan Tubal 3000<<locked>>80%38,014 psi63%2106 fps99.7%
SNPE Vectan Tubal 5000<<locked>>80%31,096 psi52%1995 fps99.4%
Somchem S321<<locked>>80%41,713 psi69%2251 fps99.2%
Somchem S335<<locked>>80%37,608 psi62%2113 fps99.9%
Somchem S341<<locked>>80%36,492 psi61%2156 fps96.7%
Somchem S355<<locked>>82%31,053 psi52%2064 fps95.6%
Somchem S365<<locked>>90%28,747 psi48%2090 fps95.8%
Vihtavuori N130<<locked>>80%43,120 psi72%2169 fps100%
Vihtavuori N133<<locked>>80%38,072 psi63%2106 fps100%
Vihtavuori N135<<locked>>80%33,330 psi55%2090 fps100%
Vihtavuori N140<<locked>>80%34,432 psi57%2096 fps99.6%
Vihtavuori N150<<locked>>80%27,702 psi46%1975 fps95.9%
Vihtavuori N160<<locked>>94%38,203 psi63%2224 fps95.7%
Vihtavuori N530<<locked>>80%38,856 psi65%2178 fps98.6%
Vihtavuori N540<<locked>>80%32,996 psi55%2087 fps99%
Vihtavuori N550<<locked>>94%37,260 psi62%2228 fps95.2%
Winchester 6.5 StaBALL<<locked>>88%32,198 psi53%2077 fps95.6%
Winchester 748<<locked>>80%37,768 psi63%2218 fps99.1%
Winchester StaBALL Match<<locked>>80%34,548 psi57%2146 fps97%

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 93 powders for .308 Win. loaded with the .308 | 200gr | Speer Grand Slam. ReloadSwiss RS 60 delivers the highest muzzle velocity at 2,556 fps; across all powders the maximum-charge window runs from 1,424 fps to 2,556 fps. Accurate 4350 gives the best case fill at 100 %, and 93 of the 93 powders fall inside the usable 80–100 % fill window.

Relative to the caliber's maximum pressure (415 MPa), the top charges use 58–90 %, leaving at least 10 % headroom. The 200.0 gr projectile in 0.308" calls for a 1:14.5 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. Alliant Power Pro 2000-MR, ReloadSwiss RS 52, Hodgdon LEVERevolution rank at the top here: for .308 Win. with the .308 | 200gr | 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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