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Joined: Aug 2002
Posts: 14,074
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Aug 2002
Posts: 14,074 |
Does anyone know how many inches it takes for a 22lr to reach ~ 1050 fps?
I�d like to end up with a M77/22 that has a barrel length between 16� - 18� to use with standard/sub-sonic ammo but don�t want to make it so short that my already slow ammo doesn�t reach its intended velocity. Thanks!!
Biden's most truthful quote ever came during his first press conference, 03/25/21.
Drum roll please...... "I don't know, to be clear." and THAT is one promise he's kept!!!
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Joined: Jul 2009
Posts: 23
New Member
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New Member
Joined: Jul 2009
Posts: 23 |
Max velocity is reached by ~14-16".
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Joined: Aug 2002
Posts: 14,074
Campfire Outfitter
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OP
Campfire Outfitter
Joined: Aug 2002
Posts: 14,074 |
Much appreciated! The shorter the better for me so it looks like I'll be going with a 16" barrel.....
Biden's most truthful quote ever came during his first press conference, 03/25/21.
Drum roll please...... "I don't know, to be clear." and THAT is one promise he's kept!!!
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Joined: Mar 2002
Posts: 414
Campfire Member
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Campfire Member
Joined: Mar 2002
Posts: 414 |
The Colibri stuff is only rated for pistol barrels, I use a T/C 14" with a permanently mounted 2" brake, still very quiet.
Wiley
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Joined: Dec 2006
Posts: 7,681
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2006
Posts: 7,681 |
There was a test some time ago, published in one of the gun mage, where they chrono'd 22LR and cut the barrel. As True notes, max velocity was at 14 inches, but 16 is the legal minimum unless you feel like paying $200 for a tax stamp. Modern high velocity stuff does better at 17-18 inches. As an aside, 17HMR reaches max velocity at 19 inches. http://www.bullberry.com/HMRdata.html
Be the person your dog thinks you are.
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Joined: Jan 2001
Posts: 21,317
Campfire Ranger
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Campfire Ranger
Joined: Jan 2001
Posts: 21,317 |
Interestingly most of the top 22lr br shooters are using a 25" long barrel. I read a discussion on the benefits of that barrel length related to bullet velocity and group size, but can't seem to find a link.
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Joined: May 2004
Posts: 56,265 Likes: 35
Campfire Kahuna
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Campfire Kahuna
Joined: May 2004
Posts: 56,265 Likes: 35 |
There's a lot to consider here other than optimum velocity. Sight radius, balance, muzzle blast to name some of the more obvious. I've not fired a .22 RF whose accuracy suffered due to less than optimum velocity.
I am..........disturbed.
Concerning the difference between man and the jackass: some observers hold that there isn't any. But this wrongs the jackass. -Twain
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Joined: May 2004
Posts: 10,883 Likes: 1
Campfire Outfitter
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Campfire Outfitter
Joined: May 2004
Posts: 10,883 Likes: 1 |
Dan what is your preferred .22 target ammo?
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