make sure you buy some new bolt screws your old one will have a grove you need new one to set it up Remington 700 ML Bolt Stop/Cam Follower Screw F99286
that's a good? I've only shot powder with this system you may email badger ridge he will no.
the only bad thing with rem bolt is it a plunger system and the primer will blow out after you shoot it in your face.
if it was me, I would go with this 209 conversion and you can shoot bh 209 with it safely or any sub powder Remington 700 ML MLS 209 shot shell conversion kit
Rem 700 ml or none for week firing pin springs and gets very dirty this slows firing pin down and head spacing maybe off as will. what conversion to 209 did you get.