Author Topic: Had the muzzle re-crowned on the old 7x57  (Read 829 times)

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Offline scout4

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Had the muzzle re-crowned on the old 7x57
« on: September 17, 2010, 05:16:36 PM »
I had to have the muzzle re-crowned on my Dads old Mauser. Seems the crown got a little worn and the smithy says that will have a big effect on accuracy.Anyway, the smithy did an excellent job on the old rifle and hopefully that will bring the accuracy back to where it was. My son an I are planning on some shooting this weekend, and of course the old Mauser is going with us. First shots will be at 100yds. In the past that is where my Dad always shot it at, and he liked the accuracy he would get with the old Norma cartrige with a 145 grain bullet its what he hunted with for many years. I will let you know how we do. scout4<><

Offline billy_56081

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Re: Had the muzzle re-crowned on the old 7x57
« Reply #1 on: September 17, 2010, 05:55:48 PM »
We are awaiting a range report.
99% of all Lawyers give the other 1% a bad name. What I find hilarious about this is they are such an arrogant bunch, that they all think they are in the 1%.

Offline Mikey

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Re: Had the muzzle re-crowned on the old 7x57
« Reply #2 on: September 18, 2010, 02:12:23 AM »
scout:  before you hit the range give that bore a good scrubbing.  You may wish to start with some Windex with Ammonia to deal with any built up copper fouling and get that out before scrubbing with a bore cleaner.  I did that to a friend's Mexican 7, that looked clean to begin with but that came out sewer pipe dirty after 5 minutes of soaking the bore with Windex; scrubbed that out and found out she still had sharp rifling.  HTH.

Offline 1911crazy

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Re: Had the muzzle re-crowned on the old 7x57
« Reply #3 on: September 30, 2010, 10:06:42 PM »
Ditto on what Mikey says you should see the crap that came out of mine that i didn't see at first.  I actually see some rifling now where there wasn't any. The bore is far from excellent but its a shooter non the less.  Even some really bad bores can still shoot good.

Give us a range report we know these old 7mm's can shoot good.

Copper fouling;  I'm a stickler for leaving my bores dirty after i sight them in at the range(moderm ammo) if i'm going hunting soon with them.  I figure its less oil on the bullet so i don't damage the meat.  I usually leave my bores dirty for a while, well after hunting season.  They during christmas vacation i would take each hunting rifle that i shot and clean it, oil it up for storage till the next hunting season.  My point is i seen green tarnish growing inside my barrel when i looked down the muzzle inbetween the rifling.  I knew right away it was the copper fouling turning a bluish/green.  I got out the orginal G.I. Rifle bore Cleaner and went to work.  Using a smaller sized bore brush with a wet patch wrapped around it the copper fouling was removed with very little effort.  Now i clean my rifles a little sooner after hunting season, like the minute i get home from hunting now.

I find it funny how the bores are dirty from them test firing the guns when there brand new and there is no copper fouling in them. yet i fire maybe 4rds total and get copper fouling, maybe its build up?