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
Reloading
Pressure signs
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="Carlos88" data-source="post: 2240549" data-attributes="member: 116554"><p>Their are several indicators used to identify excessive pressure with no hard and fast rules. Flattened primers, hard bolt lift, higher than "normal" velocities, harder than normal recoil, blown primers,etc.</p><p></p><p>The hard bolt lift can also be rough bolt recess, misaligned lugs or 100% lug contact, improperly drilled chamber with an almost imperceptible bulge, a tight neck,etc. I had a factory .270 Win. that had that condition (bulge) and rebarreled it, had a 6.5x55 that had a "crooked" neck. Rebarreled it as well. The brass rotates when you raise the bolt so also inspect the extractor and the extractor groove. I had a Remington with an out of spec extractor and it was ruining the groove.</p><p></p><p>Measure the web of the cartridge before and after firing, look for scratches or bulges on the brass and an sufficient bullet release (narrow neck or case not too long). Also inspect the bolt face for any irregularities. It can also be a trigger reset issue.</p><p></p><p>Hope you figure it out.</p></blockquote><p></p>
[QUOTE="Carlos88, post: 2240549, member: 116554"] Their are several indicators used to identify excessive pressure with no hard and fast rules. Flattened primers, hard bolt lift, higher than "normal" velocities, harder than normal recoil, blown primers,etc. The hard bolt lift can also be rough bolt recess, misaligned lugs or 100% lug contact, improperly drilled chamber with an almost imperceptible bulge, a tight neck,etc. I had a factory .270 Win. that had that condition (bulge) and rebarreled it, had a 6.5x55 that had a "crooked" neck. Rebarreled it as well. The brass rotates when you raise the bolt so also inspect the extractor and the extractor groove. I had a Remington with an out of spec extractor and it was ruining the groove. Measure the web of the cartridge before and after firing, look for scratches or bulges on the brass and an sufficient bullet release (narrow neck or case not too long). Also inspect the bolt face for any irregularities. It can also be a trigger reset issue. Hope you figure it out. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
Pressure signs
Top