I shoot 44 grains of 7828ssc in mine. 3420 avg with 80gr berger vlds. My roommate shoots 44.6 grains of 7828ssc with the 80gr amax's. Of course start lower and work up as both of these loads are near max. We are also both shooting lapua brass, some with 4 to 5 firings on them and still super tight primer pockets.