Reply With QuoteI did trim .080 off one of the cases and it chambers fine so I think i'm right on the neck length being the issue. Just not sure how to address it.
I just recieved the 375 whelen improved barrel for my model 116. Used the Go, NO-GO gauges and everything seems to be right with them, Went to start prepping brass, Tried to chamber a sized case and it's very tight, when you pull it out it looks crimped. I checked the trim length in the book again and i'm under max.
Should I just keep trimming .005 off until it chambers properly?
How much can I trim under Max?
How much shorter will the brass get when fireformed if any?
P.S. I'm using the 35 whelen cartridge drawings, because that's all I can come up with, And Lyman's Reloading Manuel.
Thanks for any help.
I did trim .080 off one of the cases and it chambers fine so I think i'm right on the neck length being the issue. Just not sure how to address it.
are your guages for a whelen improved 40 degree shoulder or std whelen
They are for the 40* improved shoulder. I've found the brass will chamber at 2.455, Lyman's book calls for 2.484 max. Will that have any negative effects?
I would only trim one then fire form it and see what you have. They will definately be shorter after fireforming.
Check here for drawing.
http://www.loaddata.com/members/sear...MetallicID=494
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