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Not a T3 but my Rem 700 1-10 twist barrel loves RL 23 71g with the 200g ELD-X bullet in the sig brass with either a Fed 215 primer or a CCI 250 primer. .75 inches at 100 yards. Good luck. This load may not work in your rifle nor will it be a safe load. I did pluck it from the Hornady X book though.
