Just that Golden Sabers can give ya grief with their 'power band' technology if you don't understand it. Seems a lot of folks have problems taper crimping these things and getting it to hold the bullet tight enough, which can sometimes be attributed to trimming the cases too short. The combination of a shorter case length and trying to achieve a known OAL, along with how well your taper crimp die does its job, can all make for difficulty in achieving a decent grip.
I just saw that in William's original post that he was trimming his cases. I ran into this issue with Golden Sabers in the .380 ACP caliber, back when I was trying to defy known better judgment of not having to trim handgun brass. Drove me nuts, until I figured out that the trimming was the root cause of my problem.
Now I've got a whole set of handgun brass trimming jig's that sit rather lonely from non-use...
