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
Gunsmithing
Excess headspace - Win M70 30-06 pre-64
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="Stammster" data-source="post: 1942686" data-attributes="member: 114381"><p>Can I just "control round feed" each round of a new lot of brass and accomplish the same thing as jamming the bullet in the lands. Shouldn't this accomplish the same thing by holding the case head against the bolt face?</p><p></p><p>Also based on my measurements, I am quite sure a field gauge would chamber easily. I didn't mention it in the first post, but I used my comparator in conjunction with my laser bore sight to make a "poor man's field gauge" by backing off the battery cap (2.052" comparator length = 2.0587" = max SAAMI chamber length) . I was able to chamber it without any bolt cam over force. When I had it set to 2.056" (comparator length), I felt some major resistance. This was consistent with my once fired brass coming out at 2.055". That's why I'm confident my chamber is 0.003" over SAAMI max spec without an actual field gauge.</p><p></p><p>FYI, I triple confirmed my comparator readings and offset - with both my go and no-go gauges. I don't have a factory field gauge, as I never saw the need for one.</p></blockquote><p></p>
[QUOTE="Stammster, post: 1942686, member: 114381"] Can I just “control round feed” each round of a new lot of brass and accomplish the same thing as jamming the bullet in the lands. Shouldn’t this accomplish the same thing by holding the case head against the bolt face? Also based on my measurements, I am quite sure a field gauge would chamber easily. I didn’t mention it in the first post, but I used my comparator in conjunction with my laser bore sight to make a “poor man’s field gauge” by backing off the battery cap (2.052” comparator length = 2.0587” = max SAAMI chamber length) . I was able to chamber it without any bolt cam over force. When I had it set to 2.056” (comparator length), I felt some major resistance. This was consistent with my once fired brass coming out at 2.055”. That’s why I’m confident my chamber is 0.003” over SAAMI max spec without an actual field gauge. FYI, I triple confirmed my comparator readings and offset - with both my go and no-go gauges. I don’t have a factory field gauge, as I never saw the need for one. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Gunsmithing
Excess headspace - Win M70 30-06 pre-64
Top