POI changes
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Please post political post in the new Politics forum.
- wvfarrier
- Senior Levergunner
- Posts: 1473
- Joined: Mon Oct 28, 2013 9:27 am
- Location: West (by GOD) Virginia
POI changes
I have been tinkering with 357 mag rifle loads lately and noticed that there was HUGE variances in point of impact points depending on the projectiles used. It seems the model of projectile affects POI even when velocities are very close. I have seen impact points that 4-6" different between 4 different projectiles even though the belocites were within 75fps of each other. Anyone else notice this? I havent seen this behavior with bolt or semi auto rifles.
A bondservant of our Lord, Christ Jesus
Re: POI changes
I guess this is one of those Everyone's-experiences-are-different scenarios. I've actually experienced less variation with a .357 carbine than with other rifles. My '06 is drastically different shooting 150's vs 165's. Now I'm going to take another look (oh no, another excuse for a range day!).
Re: POI changes
I shot this target sandbagged at 25 yds with a 4 1/4" S&W M69 .44 Mag. Two shots per load to limit recoil fatigue and reduce target clutter. Point of aim was the same for all groups (center target diamond). I'm sure different guns, calibers, loads would show different results.
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Paul
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Paul
- Scott Tschirhart
- Advanced Levergunner
- Posts: 4077
- Joined: Fri Oct 16, 2020 2:56 pm
- Location: San Antonio, Texas
Re: POI changes
Unfortunately I’ve seen it too. Thats why I am so careful about cutting my fixed sights to a particular load until I shoot a gun quite a bit.
Re: POI changes
Exactly!Scott Tschirhart wrote: ↑Fri Dec 22, 2023 9:52 am Unfortunately I’ve seen it too. Thats why I am so careful about cutting my fixed sights to a particular load until I shoot a gun quite a bit.