Try adjusting the gas block. Adjustable gas blocks are used to tame over gassed rifles.
If he set the gas too the ammo he used, it's a good chance he will have to reset it to the handloads.
One of the draw backs of adjustable gas some times you have to adjust it for one load and if you change loads are try diffrent factory ammo you may have to readjust.
If he set the gas too the ammo he used, it's a good chance he will have to reset it to the handloads.
One of the draw backs of adjustable gas some times you have to adjust it for one load and if you change loads are try diffrent factory ammo you may have to readjust.