OK, my 300WSM could use more resizing to chamber properly or I could just back off loads since that is not happening my question is will a small base die set reset the brass dimension at web area better than a body die or will it REALLY help salvage brass? They are pricey so this is a decision maker process. Appreciate the response on the small base die question.
Thx as always to the LRH brain trust!
I imagine most folks here FL size and shoulder bump for their bolt guns.Perhaps I missed it; what model rifle are you shooting this cartridge in? It would seem if the brass came from that rifle that you could just neck size and bump the shoulder a bit using an RCBS X die to help case life. Must folks I believe use SB for pumps, levers, and semi-auto's, yes, I'm sure a few will as well for bolt guns. Good luck
A push through die would be nice, I use them for my 10mm pistol brass occasionally and they work wellI have this issue with 300wsm, 6.5 prc, occasionally with 30 nosler. It only rears its head after 3-4 firings. The norma brass is soft, it'll swell at the web on one hot charge. ADG takes several before it becomes an issue. Small base dies aren't available for many of the newer cases that have come out in the last 10 years. Namely the biggest problem is 6.5/300 prc cases. The adg brass takes a lot of pressure prior to ejector marks and pockets loose. So obviously the cases can handle it, but the web area about 0.200-0.300 ahead the bolt face starts to swell, and it won't come back with a min saami spec die. Work hardened brass gets quite tough obviously. I orderd a custom 7-300prc reamer and ordered max saami spec at the 0.200" line, unfortunately that's 533, which is what saami chambers already are, I'm a bumba$$ for not getting 535 back there to eliminate clickers and let my die size the brass to usable dimensions after a handful of loadings.
I've asked a well known smith about honing the last 3/4" of chamber with a 180 grit flex finish hone, then use a 400 grit to smoothen it all up. He said that'd sounds like a horrible idea. I also know another high end well known benchrest smith who will take an extra thou or two out of the butt end after chambering, no problem.
So.......whats really right? Using tight as heck dies to size the lower portion of case more, or have a bigger chamber at the end by a thou or 2 to leave room for standard dies to do their job properly. Sounds like 6 in one, half dozen in the other.
Taking a die, and removing a quarter inch off the bottom and cutting off the shoulder will essentially make a small base die, I hear of guys having success with this, but it's Facebook, who knows if it's true, and then the naysayers start screaming you'll damage the brass and have case head separation and stuck brass in your chamber. Could it happen? Maybe, will it? By sizing the brass down an extra thou or two, I kinda doubt it.
A universal small base push through die that takes different inserts to size different family of cases sounds like an outstanding idea. Patriot Valley Arms had just this setup yet now they've quit making the inserts, I've been asking about it for a year almost and I get the same runaround every time.
This is just my lack of 0.02¢ input on this scenario, I never really gave any advice, but just elated more of the problem and possible scenarios to maybe eliminate the issue while sitting on the jon, God bless!