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.22 Match T/C twist compromise?
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tom`
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posted
I'm inclined to 1:16 most likely or 1:14 for the next Contender PISTOL barrel I make up and part of me is even suggesting 1:18 purely for paper punching match barrel purposes, which is all this is intended to do. 12-14 inch barrel. Decisions decisions......Don't have the facility to do my own rifling so I haven't ordered a barrel blank yet. Stuck at the crossroads again.

Anybody have any bright ideas? Intended use is 50 yards and under with irons.
 
Posts: 895 | Location: Republic of Texas | Registered: 02 October 2007Reply With Quote
Bobby Tomek
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tom' wrote: "I'm going to make a barrel for purely match porpoises. 12-14", undecided on that. Standard 1:14 or 1:15, or perhaps 1:16 or what I'm leaning towards, 1:18?

Won't be eating anything but .22LR match ammo other than plinking. Slower twist almost seems the better bet with light match projectiles.

???

I asked this on the single shot pistols forum and got IGNORED"
----

There's a reason the standard twist rate is 1:16. Stick with it. A faster 1:14 is fine, but a 1:18 is not -- not with match ammo and the velocity range you'll be operating at.

Also, as to saying "Slower twist almost seems the better bet with light match projectiles.":

Most .22 LR match ammo that I am familiar with is a full 40 grains. Lightweight in rimfire applications generally refers to 30-33 grains, and you won't find match ammo in that format.


Bobby
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Posts: 9443 | Location: Shiner TX USA | Registered: 19 March 2002Reply With Quote
tom`
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posted Hide Post
quote:
Originally posted by Bobby Tomek:
tom' wrote: "I'm going to make a barrel for purely match porpoises. 12-14", undecided on that. Standard 1:14 or 1:15, or perhaps 1:16 or what I'm leaning towards, 1:18?

Won't be eating anything but .22LR match ammo other than plinking. Slower twist almost seems the better bet with light match projectiles.

???

I asked this on the single shot pistols forum and got IGNORED"
----

There's a reason the standard twist rate is 1:16. Stick with it. A faster 1:14 is fine, but a 1:18 is not -- not with match ammo and the velocity range you'll be operating at.

Also, as to saying "Slower twist almost seems the better bet with light match projectiles.":

Most .22 LR match ammo that I am familiar with is a full 40 grains. Lightweight in rimfire applications generally refers to 30-33 grains, and you won't find match ammo in that format.


I should have said just "match ammo". Point taken. No hollowpoints or heavy and/or high velocity projectiles is what I should have said.

Guess I need to order myself a length of 2 groove 1:16.

Thanks,
Tom
 
Posts: 895 | Location: Republic of Texas | Registered: 02 October 2007Reply With Quote
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