SAAMI sets the MAP (max avg pressure)… for 9mm that is about 35,000psi. +P is about 38,500.
SAAMI doesn’t really address the +P+ stuff to my knowledge
The +P for me always did a little better for short barrels under 4” but I reload most of it anyway. Just an observation after shooting snubbed guns with +P. I don’t have pressure equipment to say what my reloads really do honestly.
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When it comes to ammunition
- TM, 2021-08-10, 07:46
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Example
- Curt, 2021-08-10, 08:15
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Most +P ammunition is aimed at carry gun
- WB, 2021-08-10, 09:12
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I would recommend staying away from +P+ ammo
- Gary Reeder, 2021-08-10, 10:26
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9mm +P and +P+
- Alcorn, 2021-08-10, 14:35
- What makes it a +P? - TM, 2021-08-10, 20:01
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I can't think of a gun that would be beefy enough
- Gary Reeder, 2021-08-10, 15:11
- THERE IS ONE--THE RUGER CONVERTIBLE .357/9MM BLACKHAWK (nm) - JT, 2021-08-11, 05:35
- Sub-machine gun ammo (9mm) - backroadsrambler, 2021-08-10, 16:52
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9mm +P and +P+
- Alcorn, 2021-08-10, 14:35
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I would recommend staying away from +P+ ammo
- Gary Reeder, 2021-08-10, 10:26
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Most +P ammunition is aimed at carry gun
- WB, 2021-08-10, 09:12
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Example
- Curt, 2021-08-10, 08:15