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
OAL Gauge - how often
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="QuietTexan" data-source="post: 2145199" data-attributes="member: 116181"><p>Yes. You've hit on the crux of the biggest problem in reloading - tolerance stacking. You can't precisely measure the exact interface point, so we use an arbitrary point along the ogive as a proxy. Any change between the two is an uncontrollable variable because we can't measure it. Meaning all your seating depths could vary by however much variance there is between the ogives of individual bullets. </p><p></p><p>The only way I know to mitigate the problem you described is buy expensive bullets from well known quality manufacturers and let it ride. Maybe Area 419 or XXI will start building high quality inserts with calibrated openings, but even then there's a tolerance between the tool, the barrel diameter, and the beginning of the lands, and all that moves as the barrel wears.</p><p></p><p>This is why PRS shooters will try to find jump-tolerant seating depths, they want a deeper, wider node that might not provide the absolute best groups, but will work longer. As opposed to benchresters, who will chase the lands as the throat erodes for the absolute best accuracy. Pick which ever you want; neither is wrong, just make sure whichever you go with aligns with your goals.</p></blockquote><p></p>
[QUOTE="QuietTexan, post: 2145199, member: 116181"] Yes. You've hit on the crux of the biggest problem in reloading - tolerance stacking. You can't precisely measure the exact interface point, so we use an arbitrary point along the ogive as a proxy. Any change between the two is an uncontrollable variable because we can't measure it. Meaning all your seating depths could vary by however much variance there is between the ogives of individual bullets. The only way I know to mitigate the problem you described is buy expensive bullets from well known quality manufacturers and let it ride. Maybe Area 419 or XXI will start building high quality inserts with calibrated openings, but even then there's a tolerance between the tool, the barrel diameter, and the beginning of the lands, and all that moves as the barrel wears. This is why PRS shooters will try to find jump-tolerant seating depths, they want a deeper, wider node that might not provide the absolute best groups, but will work longer. As opposed to benchresters, who will chase the lands as the throat erodes for the absolute best accuracy. Pick which ever you want; neither is wrong, just make sure whichever you go with aligns with your goals. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
OAL Gauge - how often
Top