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
Big Seven Case Capacities
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="speedbump" data-source="post: 29876" data-attributes="member: 547"><p>Len, </p><p></p><p>Yes, I've very few firings per case in 7mmRUM with anything near max pressures. The primer pockets are horribly stretchy. Never had a pierced primer or split neck - just those <img src="http://images/icons/mad.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /> primer pockets!</p><p></p><p>With the Lapua case volume vs. 284 bore diameter, powder burn speed will be an experiment in itself for you. I ate up a SIGNIFICANT percentage of my barrel life just gathering max data when there was virtually none available. I hope you stumble onto one earlier in the process. </p><p></p><p>I fully understand the 'interesting' aspect of your quest - it's one reason why I jumped on the 7RUM before it was available (besides the incredible ballistic potential). You'll see a trajectory of a 22-250 out to 400-500, then it'll smoke almost anything, INCLUDING a 50BMG to 1,000. </p><p></p><p>I asked Santa to bring some Lapua, Norma, or even Winchester brass in RUM. I don't think even the jolly one can pull that off! <img src="http://images/icons/frown.gif" alt="" class="fr-fic fr-dii fr-draggable " style="" /></p></blockquote><p></p>
[QUOTE="speedbump, post: 29876, member: 547"] Len, Yes, I've very few firings per case in 7mmRUM with anything near max pressures. The primer pockets are horribly stretchy. Never had a pierced primer or split neck - just those [img]images/icons/mad.gif[/img] primer pockets! With the Lapua case volume vs. 284 bore diameter, powder burn speed will be an experiment in itself for you. I ate up a SIGNIFICANT percentage of my barrel life just gathering max data when there was virtually none available. I hope you stumble onto one earlier in the process. I fully understand the 'interesting' aspect of your quest - it's one reason why I jumped on the 7RUM before it was available (besides the incredible ballistic potential). You'll see a trajectory of a 22-250 out to 400-500, then it'll smoke almost anything, INCLUDING a 50BMG to 1,000. I asked Santa to bring some Lapua, Norma, or even Winchester brass in RUM. I don't think even the jolly one can pull that off! [img]images/icons/frown.gif[/img] [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Big Seven Case Capacities
Top