I have several M7's and while I like them all the Predator with a 22" barrel is by far the best handling of the bunch.
That's pretty much what I've found my predator is a 243 my M7 ss 7 saum takes care of "I want a bigger cartridge" duty in the M7
Goodluck rickt300 , I'd put the 22" on it rfn. Mb