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Fmj= barrel wear?


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Old 07-07-2012, 12:55 AM   #11
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At a guess only(I did no research) I believe barrels will wear faster if using some of the newer steel jacketed bullets. I have seen many of these at the range both rifle and pistol rounds. Most have a coating(very thin) of some kind on them. They are for sure harder than standard FMJ rounds. You have to check them with a magnet as they look "normal". Just a heads up.
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Old 07-07-2012, 01:28 AM   #12
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Quote:
Originally Posted by c3shooter View Post
I have a 1911A1 that has run about 9000 rounds of FMJ. Please don't tell it it has worn out.

Barrels are steel. Jacket metal is a copper nickel alloy, much softer than steel. Not going to happen. PS- my range M60 machineguns used to fire about 12,000 rounds of FMJ a WEEK.
C3 , Is there even any steel left to that barrel
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Old 07-07-2012, 01:36 AM   #13
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Quote:
Originally Posted by old fart View Post
my brother came by this morning and told me not to buy any full metal jacket ammo, he said it will wear the gun barrel out in less than a thousand rounds. is this true?, i use federal 115 grain fmj to target shoot and hollow points for defense. thanks
Dogwash.
The typical jacket material on a FMJ is no harder or abrasive than any other jacketed type. FWIW, the military get more than 1K per barrel with theirs.

http://en.wikipedia.org/wiki/Gilding_metal
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Old 07-07-2012, 01:48 AM   #14
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I have several Ruger Super Blackhawks in .44 Magnum that have had a diet of mostly JHP fired through them. Two have had in excess of 10,000 rounds, actual count, fired through them.

Yes, I keep a log book on each gun and the number and type of rounds fired. Log in after each range session, easily done, as I have the empty brass to count.

A .45 Colt (Ruger Blackhawk) is nearing 20,000 rounds mark, but it has had mostly cast lead bullets.

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Old 07-07-2012, 01:49 AM   #15
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I am sorry to tell you what he told you is crap.
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Old 07-07-2012, 02:06 AM   #16
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Quote:
Originally Posted by BlueTurf View Post
I am sorry to tell you what he told you is crap.

Well, yeah, that's sort of what I was tryin' to say.


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Old 07-07-2012, 04:29 AM   #17
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I have never shot out a handgun barrel and I have a few with in excess of 100,000 rounds through them. Although I have at times, had to tighten up, re-build them or replace some parts, but the barrels are still bright, sharp and accurate.

On the other hand, I have had a few over bore target/varmint rifles with less than 200 rounds through them come through my shop to be re-barreled. These were not caused by jacketed bullets, but rather the abrasive effects of the hot burning powder and high pressures.


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Old 07-07-2012, 04:45 AM   #18
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Feel free to tell him he is an IDIOT. He needs to go back to his job in the mall.
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Old 07-07-2012, 05:23 AM   #19
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I concur! This is like saying driving on the right side of the street in the great US of A is illegal.... Quite the opposite lol
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Old 07-07-2012, 05:27 AM   #20
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The orginal bullets were patched with fabrics, leather paper etc. These patches reduced friction and preformed as gas seals in the bore. The modern FMJ bullets are patched with a metal softer than than the barrel steel. Firearms with oversized throats can allow gas cutting as gas passes around the bullet before it upsets. Provided the arm is in good condition firing jacketed ammo improves the bore by hard lapping.
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