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185 Gr. Precision With Vv N320, Ideas?


Kevin J

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I've been searching the forums for some proven load data, but really haven't found anything definitive. I've been reading about how great precision's moly coated bullets are and just got a sample pack of 185 gr round noses. I really like N320 and would like to hear anyone's personal tried and tested loads with these particular bullets. I've been loading a 155 gr.Xtreme over 4.6 of N320 with a 1.170 OAL for my CZ 75 TS. I know that combo is minor pf and would like to get these 185s to major. Anybody got a load?

Thanks!!

Kevin J.

www.practical-shooters.com

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I'm loading that bullet to 1.180" for an STI Trojan - not much longer. Summer time around central Texas, I load 4.3gr. Dead of winter I needed 4.7 to just barely squeak by at Major at the Double Tap in 35-ish degree weather. Probably start 3.8 and work up at your length???

Edited to add (duh)... using N320, of course :)

Edited by XRe
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+1

I shoot that exact load in my STI Edge. 185gr Precision at 1.180" over 4.3gr of N320. I do not have chrono data for 'winter' conditions in East Texas... (Seldom gets below freezing). I think you will like the combination! I get no noticeable smoke when I am shooting, it's very clean, and the sights track perfectly for me. When I first switched to this load, I intentionally ran over 3k rounds through my gun without cleaning it - ZERO malfunctions.

This is my chrono data for this bullet / powder combination:

Notes: 185gr Precision (Actual AVG Weight = 188gr), 1.180" OAL, Winchester Cases, WSR Primers, PF calculated with actual bullet weight, screens 15' from Muzzle, 10 Shot Averages

82 Degrees F; %65 Humidity

4.1gr N320 - Min=867fps / Max=893fps / AVG=878.9fps / PF=165.2

4.2gr N320 - Min=893fps / Max=916fps / AVG=902.1fps / PF=169.6

101 Degrees F; %35 Humidity

4.3gr N320 - Min=901fps / Max=927fps / AVG=913.6fps / PF=171.8 (169PF @ 185gr)

4.4gr N320 - Min=912fps / Max=945fps / AVG=930.9fps / PF=175.0

I think XRe's recommended starting load is a good one. :)

Hope this helps,

Justin

Edited to add - PF using 185gr bullet; I chose 4.3 for a cushion with either weight

Edited by Paradox
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