Fire forming dasher

iukamedic

Sergeant of the Hide
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Minuteman
Aug 31, 2017
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I have some new br brass and I’m trying to decide to fire form or hydro form. I have varget, 450’s and smk 107. I also have cfe 223 and cci 400. Also have 748 Winchester. Has anyone used these for fireforming (400, cfe 223)? Trying not to eat up my 450’s and varget on a forming process. Or just hydroform? Thanks for opinions and advice ahead of time...
 
I’d send it off to a hydroforming service that has a good reputation for getting shoulders as square as possible. Then you can just load normally for the first firing.

Or buy Peterson dasher brass.

I’d do either one before I used the currently impossible to find primers.
 
I tried those Peterson’s and the lapua seemed to work better for me. This is the first dasher I’ve had. It is far more accurate than I am. I thought I knew about reloading till this.
 
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Even if you over pay for primers then you’ll still be money ahead with just fireforming your own brass. And it’s very accurate.... just fire form your own with the 400’s and CFE. Go shoot some prairie dogs, or steel or practice positional stuff.
 
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After hydroforming my own brass for 300 rds and absolutely destroying my bench with a framing hammer, never again. I just bought this pre-formed lapua brass for the next round. Dimensions are close enough that i saw zero change in performance or POI for the first firing where you blow the shoulder out to final dimensions.

 
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