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9/22/2017 12:11:25 AM
Posted: 9/11/2005 9:39:45 PM EDT
Let's say you have a brand new upper and have installed a non-chrome bolt set, and hypothetically for whatever reason decide to replace it with a chrome set. How many rounds would have had to go through the upper before you would need to worry about checking the headspacing?
Link Posted: 9/11/2005 11:42:25 PM EDT
Link Posted: 9/12/2005 4:44:02 AM EDT
Actually, David_Hineline is close. Its actually just over a million.
Link Posted: 9/12/2005 5:31:27 AM EDT
One million is BS. It is a function of throat erosion and the enlargement or lengthening of the chamber caused by excess heat. The fatser you shoot the faster it erodes. Shoot slow and it will last longer. Charles the Gunsmith.
Link Posted: 9/12/2005 5:34:21 AM EDT
[Last Edit: 9/12/2005 5:35:28 AM EDT by mongo001]
20-30k depending on use, then I'd start checking on a semifrequent basis.
Link Posted: 9/12/2005 6:19:05 AM EDT
depends on if you shoot wolf ammo

Link Posted: 9/12/2005 6:27:00 AM EDT

Originally Posted By mongo001:
20-30k depending on use, then I'd start checking on a semifrequent basis.



So the actual upper receiver minus barrel is really uneffected by that? Its the throat of the barrel only?
Link Posted: 9/12/2005 6:32:48 AM EDT
yep.



Link Posted: 9/12/2005 6:39:28 AM EDT

Originally Posted By David_Hineline:
A million



+ 1,000,000
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