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Posted: 1/11/2005 7:19:07 AM EDT
[Last Edit: 1/11/2005 7:36:25 AM EDT by cms81586]
How many rnds (firing rapid aimed shots) can you put through the 16" ltwt barrel of a R6520 before the performance will begin to degrade? How many rounds before the barrel will fail?
Link Posted: 1/11/2005 7:30:12 AM EDT
I don't know, alot. Let us know how many it takes.
Link Posted: 1/11/2005 8:11:17 AM EDT
Define 'Performance' what is your standard?

Barrel failure? With a semi-auto? Unless you're really trying and can pull that trigger at 750rpm for 3-4 min I don't think you have to worry about it.
Link Posted: 1/11/2005 8:14:24 AM EDT
I'm just wondering why everyone makes a big deal about M4 and HBAR barrels claiming that they stand up to sustained fire better. For a semi auto I dont' think you could do much damage to a lightweight barrel, even after dumping a few Beta Cmags through it quickly. Is accuracy really effected that much? If so, how much?
Link Posted: 1/11/2005 8:22:08 AM EDT
The hotter the barrel gets, the faster it wears out.

Hbar have a place, CMP matches come to mind and FAF. IPSC style rifle matches its nice to have a habr with a comp, but its not needed.

For non match wining preformance. the accuracy is not going to be an issue below 200 yards.

Link Posted: 1/11/2005 12:32:36 PM EDT
mines opens up slightly after awhile but it isnt a problem with minute of man regardless of how many rounds
Link Posted: 1/11/2005 12:45:13 PM EDT
if you have a 4150 chromelined barrel... regardless of profile... it will last 15000 plus rounds easily
Link Posted: 1/11/2005 12:51:45 PM EDT
The .mil report from a few months back showed than an M4 barrel will burst after less than 500 rounds fired full auto as fast as possible.
Link Posted: 1/11/2005 1:10:00 PM EDT
My favorite uppers are the old A1s. I routinely run 4 30s FA back to back during a string. Yeah, the barrel heats up, but at that point I switch uppers or let it rest. I've been doing this for many thousands of rounds with no untoward effects or obvious accuracy degradation.

Sam
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