THE ACCURATERELOADING.COM BIG BORE FORUMS

Accuratereloading.com    The Accurate Reloading Forums    THE ACCURATE RELOADING.COM FORUMS  Hop To Forum Categories  Rifles  Hop To Forums  Big Bores    458 lott, trimming brass after first firing

Moderators: jeffeosso
Go
New
Find
Notify
Tools
Reply
  
458 lott, trimming brass after first firing Login/Join
 
One of Us
posted
I am using 3 different bullets and the same brass, powder load, primer, and die settings. For the Cutting Edge 450/420 grain bullets, I have loaded 3 times without trimming. For the Barnes 450 grain bullets, I had to trim after the first loading of new brass. The Barnes have to be seated much deeper and all shoot to the same point on the target.

So, is excessive pressure from deeper seating making my cases grow? Bolt lift is easy and no blown primers, seating of primers might be a little too easy.

What am I missing? Why do only the Barnes make the cases grow?

Thanks for the help, straight walled cases are new to me.
 
Posts: 374 | Registered: 11 March 2006Reply With Quote
one of us
posted Hide Post
I am not sure about the deeper seating but heavier bullets of just only 50grs will cause much higher pressures in the Lott.I can tell by the ease of primer seating when pressures have reached too high.Are you using Barnes TSX or the old Barnes? The old barnes could cause higher pressures but I am not sure of that too.If the CE bullets or any monometal bullets are slightly undersized for your bore,then I suspect that can cause lower pressures and bad accuracy.
 
Posts: 11651 | Location: Montreal | Registered: 07 November 2002Reply With Quote
One of Us
Picture of 4sixteen
posted Hide Post
Higher pressure more case stretch. Deeper seating can increase pressure. I load my .458 Lott a bit on the light side for longer case life.

 
Posts: 897 | Registered: 03 May 2012Reply With Quote
  Powered by Social Strata  
 

Accuratereloading.com    The Accurate Reloading Forums    THE ACCURATE RELOADING.COM FORUMS  Hop To Forum Categories  Rifles  Hop To Forums  Big Bores    458 lott, trimming brass after first firing

Copyright December 1997-2023 Accuratereloading.com


Visit our on-line store for AR Memorabilia