what's up with the new AA 20 hulls,they crush or buckle on me,i've not changed my loader any, and loads all other AA fine. the new ones look like the STS ,that i have the same problem with and avoid loading them
ok DG, here is what i came up with. i stuck the depth bar of my calipers down the side of the hull ,so not to hit primmer pocket, masured 10 old 10 new AA , averaged2.280-2.310, and 10 STS at 2.44-2.45. i have used this same load(s) for several thousand load and never had a prblem. and have had no problems with 12ga,, could not find a nitro in my collection
figured it out, lowerd my starter crimp, and increased wad presure. the winchester web site has instuctions on the new HS hulls (high strength), also fixed the STS problems
new AA 20ga
