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I'm fairly new to guns - bought my first one nearly two years ago due to all the turmoil. I have a P320 Compact (but use the Carry module at home) and a P365. For non-range ammo I generally purchase Hornady Critical Duty and plan to purchase Speer God Dot Duty also simply because it's available. I'm also considering purchasing Sig Sauer ammo since it's available online.

1. I don't know if it's best to avoid the +P, although both guns are rated for that ammo.

2. Today a friend saw some 9mm ammo locally and picked up two boxes for me but I'm not sure if Norma MHP ammo is suitable for these guns - concerned if 108 grain might be more susceptible to "squib" rounds but I don't know enough about the physics of ammo in general. I've had on squib round early on and, like most people, would like to minimize the chance of repeating that.

Here are the specs for the Norma MHP (Monolithic Hollow Point) ammo:

108 grain
1312 fps
413 ft-lb

Here is a link to the Norma web page for this ammo:

https://www.norma-ammunition.com/en-us/products/dedicated-home-defense/pistol-and-revolver/norma-mhp

Thanks for any insight / guidance.
 

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Check out this article on this round.
Squibs are caused by a bad powder load. I wouldn’t think a 108 Grain bullet would be more susceptible to a squib load since it’s the powder load and not the bullet. If the load is insufficient with a 115 grain bullet I guess a squib is possible.

https://www.thearmorylife.com/norma-mhp-whats-a-monolithic-hollow-point/


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At 1312 FPS, there’s enough powder inside the case to prevent a squib. For comparison, my match ammo for USPSA averaged 1050 FPS for 130 PF.

1312 FPS is 141 PF.
 
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