wc-846 double-based (bulk powder) or xmr-4350 (accurate arms) for a single-based propellant. you'll have to find out what your rifle likes. we got great results with those powders and cci-250 primers........even with the wc-846. Win' brass and Hornady 60 gr' bullets gave amazing groups out of my buddy's model 700 adl-syn'
good luck,
ss'