Forums
New posts
Search forums
What's new
Articles
Latest reviews
Author list
Classifieds
Log in
Register
What's new
Search
Search
Search titles and first posts only
Search titles only
By:
New posts
Search forums
Menu
Log in
Register
Install the app
Install
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for insight on blown primers
JavaScript is disabled. For a better experience, please enable JavaScript in your browser before proceeding.
You are using an out of date browser. It may not display this or other websites correctly.
You should upgrade or use an
alternative browser
.
Reply to thread
Message
<blockquote data-quote="mtwarych" data-source="post: 2869670" data-attributes="member: 70595"><p>Adding weight to the buffer doesn't fix the problem of overgassing.</p><p></p><p>The AR-10 commercially built rifles are commonly overgassed because the industry knows people will try to shoot the cheapest junk ammuniton through the rifle so the barrel makers drill huge gasports to ensure cycling.</p><p></p><p>The proper way to fix this rifle is to order a new, undrilled AR-10 barrel, take the whole rifle to a gunsmith and have the gunsmith start with the smallest gasport and see if the rifle fully functions. If the rifle won't function, remove the barrel and drill the next smallest gasport. If that size of gasport doesn't function fully, remove the barrel, drill the next smallest gasport and continue the process. It's a major waste of time and money and ensures that you are stuck shooting that 1 type of round the barrel was specifically tuned to or you will start seeing the same problems again and as your gasport is erroded, overgassing problems will slowley re-appear.</p><p></p><p>OR, you can add and subtract weight from your recoil system until the rifle functions correctly. This is the choice I made when my brand new DPMS GII Hunter was so overgassed that I had ripped rims, bent brass and my firing pin retaining pin to bend in half due to the speed the bolt is travelling. I was shooting FGMM and getting the same problems the OP is seeing with his IMI.</p><p></p><p>OP, the IMI ammunition is completely safe in your firearm. If I find some IMI around here, I would be happy to purchase some, fire it out of my rifle with and without a heavy buffer and then post pictures of the cases. The IMI is not overloaded, your bolt is opening under pressure and causing what you are seeing.</p></blockquote><p></p>
[QUOTE="mtwarych, post: 2869670, member: 70595"] Adding weight to the buffer doesn't fix the problem of overgassing. The AR-10 commercially built rifles are commonly overgassed because the industry knows people will try to shoot the cheapest junk ammuniton through the rifle so the barrel makers drill huge gasports to ensure cycling. The proper way to fix this rifle is to order a new, undrilled AR-10 barrel, take the whole rifle to a gunsmith and have the gunsmith start with the smallest gasport and see if the rifle fully functions. If the rifle won't function, remove the barrel and drill the next smallest gasport. If that size of gasport doesn't function fully, remove the barrel, drill the next smallest gasport and continue the process. It's a major waste of time and money and ensures that you are stuck shooting that 1 type of round the barrel was specifically tuned to or you will start seeing the same problems again and as your gasport is erroded, overgassing problems will slowley re-appear. OR, you can add and subtract weight from your recoil system until the rifle functions correctly. This is the choice I made when my brand new DPMS GII Hunter was so overgassed that I had ripped rims, bent brass and my firing pin retaining pin to bend in half due to the speed the bolt is travelling. I was shooting FGMM and getting the same problems the OP is seeing with his IMI. OP, the IMI ammunition is completely safe in your firearm. If I find some IMI around here, I would be happy to purchase some, fire it out of my rifle with and without a heavy buffer and then post pictures of the cases. The IMI is not overloaded, your bolt is opening under pressure and causing what you are seeing. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Looking for insight on blown primers
Top