Hi has anyone had any problems with there atec cmm4 moderator? i have one for my 30/06 sauer that has lost its accuracy,the rifle will 1/2" group with the mod off but when its fitted the groups turn into strings of about 9" starting from high left to low right as the moderator warms up.i only shoot 3 shots at a time and the rifle is used for stalking not target shooting on a range.when i stripped the mod i found that the baffles number 3 and 4 from the muzzel had flared the nipples.This mod has had no more than 300 round through it so what is the expected life span of these.I have spoke to the supplier and they want it returned for inspection and recommend that you DON,T strip these for cleaning just lightly oil and pull through.

Yours Nigel