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Posted: 10/20/2016 10:33:53 PM EDT

It didn't take me long to realize after I got it that a 24" varmint weight barrel (.920" at the gas block) is just a monster to do anything but benchresting with.  I am finally to the point where I am going to let ADCO cut it down to 18".  I would have done it sooner, but I hate messing with a barrel/rifle that shoots 1" groups at 200 yards (best to date 7/8").  But I'll be 64 years old on my next birthday and I just don't want to lug this brute around...not even from the truck to the shooting bench.


My question is a two-part one. 1.) What crown angle does ADCO use when crowning barrels, and 2.) what angle is considered best for accuracy?


I don't mind losing a little bit of accuracy as the trade-off for improving the weight/handling, but I'd still like it to be as accurate as possible.


I'm going to post this in the industry forum as well, but still would like to hear some knowledge from the members.


Link Posted: 10/20/2016 10:52:44 PM EDT
[#1]
Crown angle is used so you don't booger up the crown.  It recesses it to protect it.  That said most that I have seen are 11 degree.  



As long as everything else is equal a flat muzzle will shoot just as good as an 11 degree crown.  
Link Posted: 10/20/2016 11:37:55 PM EDT
[#2]
As stated.. Bascily pick one, anything, as long as the first .125 or so from the bore out is cut as concentric as possible to the bore not the exterior of the barrel.
90 degree step And transition To target crown would be my choice.
the general idea is to allow the gas to escape from around the bore as quickly and evenly as posable and a recess to protect it.
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