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Not a Henry, but interesting .22 ammo change up
Posted: Sat May 08, 2021 7:41 am
by beaverislander
I have a S&W 2206 that was giving me fits by shooting 2.5" low at 30' with the sight screw maxed out. I emailed S&W to see if they could recommend a different sight or what I should do to bring the POI up. They suggested increasing the velocity of the ammo if possible, so I went from CCI-Standard to CCI Mini-Mags and it put me close enough that I'm satisfied. While 30' is no big deal, it's about my limit with those sights anyway before they get all fuzzy so I'm going to call it good enough "considering who it's for."
What I find strange is that when switching ammo with a rifle at shorter distances I've never noticed a difference, it must have something to do with a shorter barrel I'd guess.
Re: Not a Henry, but interesting .22 ammo change up
Posted: Sat May 08, 2021 9:12 am
by cooperhawk
It has to do with faster burning powder. With a short barrel if the powder burns too slow a lot of it is ejected into
the air behind the bullet without providing any propulsion. Faster powder will not be wasted. It will all burn
and provide propulsion. A rifle barrel provides more time for all the powder to burn.
Re: Not a Henry, but interesting .22 ammo change up
Posted: Sat May 08, 2021 9:13 am
by JEBar
interesting .... glad you found an answer you are OK with .... Mini Mags are my favorite 22LR ammo
Re: Not a Henry, but interesting .22 ammo change up
Posted: Sun May 09, 2021 1:28 am
by clovishound
Well, CCI standard velocity is my fav .22. It shoots the smallest groups in all of my .22 guns. Fortunately, I don't have an issue with POI in any of them and this ammo.
Re: Not a Henry, but interesting .22 ammo change up
Posted: Sun May 09, 2021 5:35 am
by beaverislander
My Henry does fine with standards too, but then I haven't found anything it won't shoot.
This is an easy enough problem to handle now that I'm aware of it.
Re: Not a Henry, but interesting .22 ammo change up
Posted: Sun May 09, 2021 9:03 am
by John E Davies
In my experience if a gun is not shooting well, the very first step is try Mini Mag .36 gr HPs. It is all I will buy, other than .22 Quiet Semi Auto for plinking cans without hearing protection with my 10/22.
I shot my best ever once in a lifetime group with Mini Mags in a CZ 452 Varmint (single set trigger) and it shoots well in all my .22s except for my CZ 455 which hates it. Go figure.
John Davies
Spokane WA