they can easily be fitted to other Rem actions like the 721,722,725,Model Seven, 600,660,78,and 673....they can be easlily rethreaded to fit M70's and Ruger M77's and some Sakos which have 1"-16 tpi threads.....pick-up the lead though 8)..they will require other minor modifications for the non-Rem actions as well as reaming the chamber...