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Loading data for 147gr for supressed PCC - N320 - Quickload Confusion

Posted: Sun Jun 23, 2019 6:13 pm
by Hush1809
So i'm trying to find good loading data for 147gr Frontier CMJ RN bullets with N320 powder for suppressed usage with pistol caliber carbines, Form 3 auto guns as well as supressed Glock 17s.

The issue is when i put in the data that seems to be popular for 147gr RN bullets that is 3.4grain of N320 powder into reloading calculators like "QuickLoad" and "GordonsTool" it tells me that the load is deemed barely safe.

Again what i want to load is:

Bullet: Frontier CMJ 147gr round nose
OAL: 1.135"
Powder: 3.4gr VV N320

Can anyone here confirm that 3.4 grain of N320 along with a 147gr RN bullet at a OAL of 1.135" will be a good choice for making a reliable and quiet subsonic 9x19mm load, should i consider going 3.5 or even 3.6 for the sake of having enough force to cycle the action more reliably?