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
AR15/10 Rifles
Completed AR10 Builds (6.5 Creedmoor)
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="rpol98" data-source="post: 2703367" data-attributes="member: 122310"><p>I'm guessing you don't have a HP bolt with the skinny firing pin, highly recommended for 6.5CM, not as much for 308 (but doesn't hurt for 308). Is this with factory ammo?</p><p></p><p>barrel length? gas system length?</p><p></p><p>and further guessing, that you're using a default 3oz (or 3.8oz) buffer (if carbine buffer tube). That's a little light for AR-308 usage, if that's the case. Hopefully you got the buffer tube depth, buffer length compatibility squared away, able to lock the bolt back behind the bolt catch.</p><p></p><p>A heavier buffer would probably benefit you, and an adjustable gas block also. I'm kinda surprised that the BCA upper works with the PSA lower, due to the known misalignment of the bore axis, upper vs lower. PSA went their own way, compared to the rest of the LR-308 market. You're probably getting some impacting of the bolt carrier at the entry to the buffer tube? or scuffing at the front of the buffer tube? Unless BCA uses the PSA bore axis height, but I thought BCA used the DPMS-pattern LR-308 bore axis height.</p></blockquote><p></p>
[QUOTE="rpol98, post: 2703367, member: 122310"] I'm guessing you don't have a HP bolt with the skinny firing pin, highly recommended for 6.5CM, not as much for 308 (but doesn't hurt for 308). Is this with factory ammo? barrel length? gas system length? and further guessing, that you're using a default 3oz (or 3.8oz) buffer (if carbine buffer tube). That's a little light for AR-308 usage, if that's the case. Hopefully you got the buffer tube depth, buffer length compatibility squared away, able to lock the bolt back behind the bolt catch. A heavier buffer would probably benefit you, and an adjustable gas block also. I'm kinda surprised that the BCA upper works with the PSA lower, due to the known misalignment of the bore axis, upper vs lower. PSA went their own way, compared to the rest of the LR-308 market. You're probably getting some impacting of the bolt carrier at the entry to the buffer tube? or scuffing at the front of the buffer tube? Unless BCA uses the PSA bore axis height, but I thought BCA used the DPMS-pattern LR-308 bore axis height. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Completed AR10 Builds (6.5 Creedmoor)
Top