I load and shoot both out of my USH and the accraucy is the same 2&1/2" groups at 100yd. The only thing I like better is the Lightfields are a little shorter--more powder. If I want to use a slow burn powder with the SPW's I go to a 3" hull. You can get 1500fps out of 2&3/4 hulls. The Lightfields I was getting on my chrono ave. 1640fps in 2&3/4 hulls, but it's a lighter slug. I would go with the SPW's alot better price and just as accurate!