12-14-2004, 06:30 PM
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Senior Member
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Join Date: Dec 2004
Posts: 111
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QuarterBore Wrote :
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I had e-mailed JD Jones at SSK and asked this very question in relation to a T/C Contender 300 Whisper barrel... Following was his reply!
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1.35O should work. T/Cs chambers are looser than ours. Not enough to make a load difference. Their twist rate is 1--10.
Making brass from 223 or 5.56 can be EXTREMELY dangerous. Our brass is made from GI or Commercial is made correctly and is safe. We have so for found about 40 headstamps that if made by the average handloader can be very dangerous. Most of the people on the internet are using counterfeits of varying chambers etc. It isn't a place to go for good information. Normally trimming back .010" is adequate. So far it has taken over 20 firings of 221 in my chamber it get uneven enough to warrant trimming. JD
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