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Old 07-07-2010, 21:42   #1
GAPist #1944
jeffreybehr's Avatar
Join Date: Mar 2009
Location: Phoenix, AZ USA
Posts: 783
Observations about longer barrel, etc.

1. The 5.15" LW barrel makes more of a velocity difference than I thought it would. With 4 different identical loads, velocities are almost 100FPS higher.

2. This LW 5.15" barrel is also the most-accurate I've had in any of my Glocks. For instance, today's 20 5-shot groups averaged 3/10-inch smaller than the essentially same loads shot over the weekend thru the original barrel.

3. After a little preliminary velocity measuring Tuesday nite, the groups I shot today were strings with lower charges of Longshot and A7 and 4 loads of A9 creeping up to what I thought I wanted. Turns out 3 loads--1 with A7 and 2 with A9--of the 9 loads I shot had too-HIGH velocity for my desires for a 155g. PD load. Some may, but I don't need a PD load generating 10' velocites over 1375FPS, but it's sure a nice problem to have.

4. Based on ONE batch of 18 groups from 9 different loads, so far the loads with A9 are generating the smallest groups, but that's only by a tenth of an inch at 10 yards.

I sure am liking this.

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An EDC S&W M&P .45ACP. A dozen Glocks sold. NRA life member.
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Last edited by jeffreybehr; 07-08-2010 at 15:10..
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