I've got a 224 Valkyrie that I am shooting 75 gr American Eagle ammo in trying to accumulate brass. I have enough to start reloading some 90 gr Sierra with and was wondering if I would need more or less gas adjustment for this. PSA states the gas block is adjusted for 77 gr bullets as it is now, but I think it is a little over gassed. I held up adjusting because I really wanted to try the 90 gr bullets and see how they would shoot first. I had a hard time getting the locking Allen screw loose the first time I tried loosening it and was wondering if I should apply Never-Seize or something on it to help keep it from seizing? Thanks for any advice, I've never worked with an adjustable gas block before. Anything obvious that I should know would be greatly appreciated, as I know nothing about them now.
Thanks, Chuck.

Last edited by ChuckKY; 07/14/18.