Too cold to shoot, so I re-cut my crown - M14 Forum

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Too cold to shoot, so I re-cut my crown

This is a discussion on Too cold to shoot, so I re-cut my crown within the Gunsmithing forums, part of the M14 M1A Forum category; I need to get some load development done, but I think it'd be time wasted today. It's about 15F and blowing hard. So I decided ...


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Old March 4th, 2017, 07:19 AM   #1
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Too cold to shoot, so I re-cut my crown

I need to get some load development done, but I think it'd be time wasted today. It's about 15F and blowing hard.

So I decided I was due to touch up the muzzle crown on my m1A match mule. Pretty easy job--I have the Brownells 12 blade 45 cutter. The hardest part by far was getting the suppressor off. Youtube covers it pretty well. The biggest thing is to clean the cutter and bore between each set so you don't get a chip in there (by chip I mean stuff you can't really see).

Gus Fisher had mentioned they used to do this once or twice a season; just a quick single pass on all the guns to freshen up the crown. I was a little surprised that it took more than a couple turns to get a nice edge all the way around--four or five rounds with the cutter. My two-beer self must have gotten sloppy with the cleaning rod one evening.

Almost 5k on this tube (Kreiger 1:12"); hoping to get it through the season.

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Old March 8th, 2017, 04:25 AM   #2
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Have you ever experimented with different crowns on a m14 ? Is that something covered by rules ? Just wondering so I can keep the young fellows down at the local gun store thinking I am some kind of m14 guru .

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Old March 8th, 2017, 11:17 AM   #3
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You could use any crown you want, except the face of the muzzle seats against the inside of the flash suppressor so it must be square- 90 degrees. You could try an 11 degree crown as long as maybe half the face area was still square to give a solid seating area.

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