Handgun PSI  Rifle PSI  Rifle (Cont.) PSI
17 Rem 52,000 cup 22 Hornet 25,000 CUP 30-30 Winchester 42,000
22 RF  Short

21,000

222 Remington 50,000 303 British 49,000
22 RF Long & LR 24,000 222 Rem Mag 50,000 cup 307 Win 52,000 cup
22WRF 19,000 223 Remington 55,000 300 Savage 47,000
22WRM

24,000

22-250 Remington 65,000 308 Winchester 62,000
 25 Auto 25,000 220 Swift 54,000 cup 32 Win Special

42,000
32 S&W Long 15,000 223 WSSM 65,000 32 Rem 37,000 cup
380 Auto  21,500 243 Winchester 60,000 32-20 16,000 cup
 9mm Luger 35,000 6mm Remington 65,000 32-40 30,000 cup
9mm Luger +P 38,500 6 mm BR-REM 52,000 cup 300 Rem. Short Ultra Mag 65,000
38 S&W 14,500 257 Roberts +P 58,000 300 WSM 65,000
38 Auto 26,500 25-06 Remington 63,000 30-06 Springfield 60,000
38 Special 17,000 260 Remington 60,000 300 H & H No PSI Std.
 38 Special +P 18,500 6.5 x 55 Swede 45,000 300 Win Magnum 64,000
 38 Super Auto +P 36,500 6.5 x 284 No PSI Std. 300 Weatherby Magnum 65,000
357 Sig 40,000 264 Win Magnum 64,000 300 Rem. Ultra Magnum

65,000

357 Magnum 35,000 270 WSM 65,000 8mm Mauser 35,000
 357 Remington Max 40,000 270 Winchester 65,000 8mm Rem. Magnum 65,000
 40 S&W 35,000 7mm BR 52,000 CUP 32 Win Special 42,000
10mm Auto 37,500 7 x 30 Waters 45,000 338 Win Magnum 64,000
41 AE 35,000 7mm – 08 Remington 61,000 348 Win 40,000 cup
41 Remington Mag 35,000 284 Winchester 56,000 338 Rem. Ultra Magnum 65,000
44 Special 15,500 7.62×39 45,000 338 Lapua No PSI Std.
44 Remington Mag 36,000 7mm Mauser 51,000 375 H & H 62,000
45 Auto 21,000 7mm WSM 65,000 38-40 Win 14,000 cup
45 Auto + P 23,000 280 Remington 60,000 38-55 Win 30,000 cup
45 Long Colt 14,000 7mm Remington Mag 61,000 375 Rem. Ultra Magnum 65,000
45 Win Mag 40,000 7mm Weatherby Mag 65,000 416 Rem. Magnum 65,000
454 Casull 65,000 7mm STW 65,000 444 Marlin 42,000
480 Ruger 48,000 7mm Rem. Ultra Mag 65,000 45-70 Government 28,000
50 AE 36,000 30 Carbine 40,000 458 Win Mag 53,000 CUP
7.62 x 39 45,000 470 NE 35,000 cup
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By Hunter Elliott

I spent much of my youth involved with firearms and felt the call early on to the United States Marine Corps, following in my father's and his brother's footsteps. Just after high school I enlisted and felt most at home on the rifle range, where I qualified expert with several firearms and spent some time as a rifle coach to my fellow Marines. After being honorably discharged I continued teaching firearm safety, rifle and pistol marksmanship, and began teaching metallic cartridge reloading. In the late 1990s I became a life member to the National Rifle Association and worked with the Friends of the NRA. Around that time my father and I became involved with IDPA and competed together up until he passed away. I began reviewing firearms for publications in the mid 2000s and have been fortunate to make many friends in the industry. Continuing to improve my firearms skills and knowledge is a never ending journey in which we should all be committed. I am also credited as weapons master on a few independent films.

3 thoughts on “SAMMI pressure specs”
  1. The SAAMI MAP is not the machine “loading limit” . SAAMI states:

    “Cartridge Pressure measurements are subject to statistical variation. The average of several successive tests, e.g., 10 rounds drawn from an essentially homogenous quantity of ammunition [meaning the same load with the same lot number of each component] will usually differ, but will in general lie within certain limiting values both above and below the lot mean value that would be observed if all rounds from the lot from which the samples were drawn was to be tested.”

    The SAAMI MAP (Maximum Average Pressure) is simply the “recommended maximum sample average pressure level for loading commercial sporting ammunition.”

    The MPSM (Maximum Probable Sample Mean) is the maximum expected average of any sample of the lot. That figure is based on 3 standard errors above the MAP.

    In testing handloads 10 shot samples have been found adequate when verified with subsequent sample testing. The bullet and powder manufacturers which publish loading data measure with 10 shot samples and “verify” each load with 3 additional 10 shot samples such that the maximum sample average plus 3 standard deviations does not exceed the SAAMI MAP.

  2. Hi Range Hot. I really like your YT channel.
    Anyway, I reload 45 Auto, and all the data on the cartridge in load books treats 18 ,000 CUP as the maximum pressure for standard loads. Is this just because of potential lawsuits? Do you or anyone else load pass the max pressure in the books (18,000) and to the SAAMI max pressure of 21,000? I’ve only loaded to 18,000 or there a-bouts and noticed my rounds are wimpy compared with commercial ammo.

    1. Thank you very much.
      Do you know the velocities you are getting? I would always stay in SAAMI specs but you can increase velocity and stay in the safe pressures with different powder. What reloading manual are you using?

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