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Thanks that’s exactly the advice I was seeking. Personally I would not be concerned about where the old lettering end up.

Thanks gundoc, I understand the difference in twist rates and potential benefits for heavier pills but the 1:9.35 or 1:9.5 twist rate barrels (REM & Tikka) are quite capable in 7RM of producing good...

Yes, discussing idea with one or more gunsmiths is definitely next step. Was hoping a couple on here might see the thread & add some words of wisdom.

Yes 1:8 twist would be ideal but a 1:9 is fine for 160-168 gn pills. I’m tossing up ideas for a short (20in) bbl 7mm that’s got more legs than SAUM :ORLY::cool:

Probably needs a gunsmith to answer this one but …. Could a factory 7mmRM bbl be re-chambered to 7PRC.
It would mean loosing a little bit of length off the Knox at chamber end, but looking at the...