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Tennessee Gun Owners Forums
Rifles
Rimfire accuracy...
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<blockquote data-quote="mike243" data-source="post: 5693846" data-attributes="member: 3237"><p>A match chamber will hold a better pattern longer as the barrel heats up, worn reamers give smaller bores which would make tighter fitting shells, the reamers don't grow and cause over bores, you might get 1 bent that could cause a enlarged chamber, Marlin made a few 22 with match chambers but they are a hens tooth to find. shooting the fast stuff in a match chamber causes wear as the case often hits not just the bullet but the end of the chamber. surprising how different powders and bullets shoot a lot different, I am a firm believer in a 40g lead only bullet, my marlin 7000 would probably out shoot my 10/22T if it had a better trigger, folks have cobbled a couple of hacks for it but none I am comfortable on doing. The chambers are checked I am sure with go/no go gauges, how much tolerance Thay allow I have no clue. I don't use any copper ammo in any of my 22's . years ago I played around with a lot of ammo and found it might take a box of ammo for a barrel to settle into a good pattern, switch ammo and have to start over. the Federal blue box was the best I found for off the shelf ammo, forgot the #, the automatch I bought when I ran out had 3-5 ftf in it, I wasn't impressed. have not bought any 22 ammo in a few years as I hoarded what I could find. I want to come shoot with MUP next year if all goes as planned, time will tell</p></blockquote><p></p>
[QUOTE="mike243, post: 5693846, member: 3237"] A match chamber will hold a better pattern longer as the barrel heats up, worn reamers give smaller bores which would make tighter fitting shells, the reamers don't grow and cause over bores, you might get 1 bent that could cause a enlarged chamber, Marlin made a few 22 with match chambers but they are a hens tooth to find. shooting the fast stuff in a match chamber causes wear as the case often hits not just the bullet but the end of the chamber. surprising how different powders and bullets shoot a lot different, I am a firm believer in a 40g lead only bullet, my marlin 7000 would probably out shoot my 10/22T if it had a better trigger, folks have cobbled a couple of hacks for it but none I am comfortable on doing. The chambers are checked I am sure with go/no go gauges, how much tolerance Thay allow I have no clue. I don't use any copper ammo in any of my 22's . years ago I played around with a lot of ammo and found it might take a box of ammo for a barrel to settle into a good pattern, switch ammo and have to start over. the Federal blue box was the best I found for off the shelf ammo, forgot the #, the automatch I bought when I ran out had 3-5 ftf in it, I wasn't impressed. have not bought any 22 ammo in a few years as I hoarded what I could find. I want to come shoot with MUP next year if all goes as planned, time will tell [/QUOTE]
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Rimfire accuracy...
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