Some months ago I worked up a load in my stock 20sf and barrel. What I ended up with is a charge of Longshot, reg fed primers, new stairline brass and 200gr BT seated at 1.26-1.263". When working up the loads I shot 5 shot strings into the crono and ended up with a safe max load of 1230 fps. While shooting I never had any feeding issues. Now I few months later I've discovered when I load past 7 or 8 the wide meplet of the bullet start to drag on the inside of the mag, making it impossible to load more than 10 or so. So I shortend up to 1.25" and started getting FTFeed with the bullet hanging up on the top of the chamber mouth. I went to 1.24". Same problem. I ran the rest through a lee BB. Some of the rounds seemed like there might have been a slight buldge at the back of the bullet. I test fired to and after 30 rounds I thought I had it fixed, but then it did the same thing. The gun is a very good preformer. It only ever given me problems with marginal reloads. I had a fresh 2-4 hundred round stock RSA in the gun. I mostly shoot 40sw through a conversion. But I've shot lots of 180's at 1250fps and a couple thou 135nosler at 1500 and the gun runs fine. Any ideas guys? Is there a pretty small OAL where these bullets work good? Could I have to much crimp on the cases causing them to come up early in the front? Also I tried with three different mags with the same results. Thanks. Aaron Wanna kill these ads? We can help!