I am loading a 243 win with 95 grain smks with 37.5 grains of IMR 4350. Normally I use cci 200 primers but I am almost out. Cabelas in Dundee mi is 15 minutes from my house. All that they had were winchester 8-1/2 and I am wondering what is the difference between the 2 primers and what kind of changes might I see in my reloads? Any help would be great. I'm still very green with all of this and any help would be great.