Thanks for the tip. I ordered my parts from 3 rivers today, got quite the assortment of adapters and inserts to play with. Maybe a question for another thread but I'm thinking about going with some 155 grain Grizzlies instead of the Magnus classics. I keep reading all the Ashby reports and updates and the Grizzly seems to be the BH of choice for Ashby. Granted I'm probably not going to be hunting cape buffalo anytime soon, but I'm a belt and suspenders kind of guy, no such thing as overkill, IMO