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POI changing during range session?

319 Views 7 Replies 6 Participants Last post by  fflincher
I was wondering if anyone here noticed if their P22 changes the POI during a range session? I normally rotate among three guns during a typical range session, the P22 (40-50 rounds), a S&W M19 (20-30 rounds), and a Colt Series 80 (40 rounds), then back to the P22 for another 30-40 rounds. What I am noticing is that the P22 shoots dead on during the first session, but seems to shoot well to the right during the second session, by about 2-3" at 25 ft. Elevation appears to be unaffected. I have verfied this with mutliple sessions and have even shot off of a rest to verify the change in POI. I also do not shoot to the right with the other guns.

The only thing I can think of is that the sights are just slightly loose, enough so that the jarring from the first 40 rounds moves them enough to change POI. The only other possibility I have thought of is that the sights move while the P22 is lying on its side on the shooting bench.

Any ideas?
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I was wondering if anyone here noticed if their P22 changes the POI during a range session? I normally rotate among three guns during a typical range session, the P22 (40-50 rounds), a S&W M19 (20-30 rounds), and a Colt Series 80 (40 rounds), then back to the P22 for another 30-40 rounds. What I am noticing is that the P22 shoots dead on during the first session, but seems to shoot well to the right during the second session, by about 2-3" at 25 ft. Elevation appears to be unaffected. I have...
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Discussion Starter · #4 ·
Passinby said:
I've noticed that I grip each pistol a bit differently, and I didn't think much of it until I put a Hogue grip on my Hi-power .40. When I'd shoot my Hi-power nine right after that, I'd shoot to the right. Put Hogues on the nine, problem disappeared. Just a theory, but I suspect by the time you get back to it, you're using a slightly different grip. Easy enuf to test. Put it down after the first group, get a drink, come back and shoot it again (without firing another pistol first).
Yeah, I think that's a good possibility. I tried shooting from a rest to eliminate this, but I could have an altered grip anyway. I'm going to reverse the order of shooting tomorrow and see what happens then.
 

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Discussion Starter · #7 ·
Went back to the range today and the P22 was still shooting to the right. Adjusted the sights, got good results. Went to the .45 for 40 rounds, then back to the P22 and everything was still dead center.

My tentative conclusion? The sights had been jarred through handling and needed minor adjustment. I'll get back to range again next weekend and will see how things look then.

Thanks for the input!
 
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