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
270 WSM Nosler Brass issue
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="comfisherman" data-source="post: 2598135" data-attributes="member: 8394"><p>As some have stated split necks and the 270 wsm are almost a design feature from the factory winchester. Some observations in general, last big powder shortage ten years ago was about the time I made the switch from 7 wsm to 270 wsm. Local outfit had a steal on magpro and it probably accounted for half the wear on my first barrel.</p><p></p><p>The 270 wsm at the time had only federal, norma and winchester brass available. I've never had another cartridge that had as much variation in internal volume. Wound up with a pile of once fired and what worked in one brand would blow the primer out of another.</p><p></p><p>It's second only to my 223wssm for neck crack loss. With similar treatment from similar brand brass loaded on the same equipment it fails 3 loadings before equal 300 wsm brass.</p><p></p><p>We found the rather significant internal volume working backwards, we were loading 115s at max on a load worked up on a different brass mfg. The chronograph told us we had either cracked physics or found more pressure. Being young and dumb we ignored physics because we thought were special and trusted subjective observations over objective numbers. On round 9 or 10 we lost a primer pocket and physics re asserted itself. Post mortem on the brass showed enough volume differences to cause a primer blow without the traditional signs. Modern manufacturing of tight firing pin and big fat case heads with cci magnum primers can mask a fair whack of pressure. My magpro load for winchester would blow my federal primer pockets, and make my norma a roulette Ackley.</p><p></p><p>All that to say, sometimes stuff happens reloading that's why there are so many warnings on every label of every reloading product we buy. Glad he found one that works.</p></blockquote><p></p>
[QUOTE="comfisherman, post: 2598135, member: 8394"] As some have stated split necks and the 270 wsm are almost a design feature from the factory winchester. Some observations in general, last big powder shortage ten years ago was about the time I made the switch from 7 wsm to 270 wsm. Local outfit had a steal on magpro and it probably accounted for half the wear on my first barrel. The 270 wsm at the time had only federal, norma and winchester brass available. I've never had another cartridge that had as much variation in internal volume. Wound up with a pile of once fired and what worked in one brand would blow the primer out of another. It's second only to my 223wssm for neck crack loss. With similar treatment from similar brand brass loaded on the same equipment it fails 3 loadings before equal 300 wsm brass. We found the rather significant internal volume working backwards, we were loading 115s at max on a load worked up on a different brass mfg. The chronograph told us we had either cracked physics or found more pressure. Being young and dumb we ignored physics because we thought were special and trusted subjective observations over objective numbers. On round 9 or 10 we lost a primer pocket and physics re asserted itself. Post mortem on the brass showed enough volume differences to cause a primer blow without the traditional signs. Modern manufacturing of tight firing pin and big fat case heads with cci magnum primers can mask a fair whack of pressure. My magpro load for winchester would blow my federal primer pockets, and make my norma a roulette Ackley. All that to say, sometimes stuff happens reloading that's why there are so many warnings on every label of every reloading product we buy. Glad he found one that works. [/QUOTE]
Insert quotes…
Verification
Post reply
Forums
Rifles, Reloading, Optics, Equipment
Reloading
270 WSM Nosler Brass issue
Top