I just bought a Remington 700 SPS Tactical rifle with a 4-16X40 mil-dot scope that I plan to use for varmint and deer size game here in North West Arkansas. I would like some info on the following. 1) What dies to use 2) recommended 150-168gr bullets and 3) best powder. I would also like to know if what I have heard is true. I heard that for the best accuracy take an unload and unprimed case, place a lubed bullet slightly into the case mouth and then chamber the round. This pushes the bullet into the case and up against the riflings. You then eject the round and measure its length. Before starting to reload back off the bullet seating die slightly. Does this sound reasonable?