RE: Powerbelt problems
I was shooting powerbelts out of my Black Diamond XR and needless to say was not impressed with the accuracy. I was shooting 100-120 grains of Triple Se7en.
I cut the load back to 90 grains of loose Pyrodex RS and what a difference. It must have slowed them down enough to where they decided to behave. I shot some excellent groups with the 348 grain aero tips with 90 grains of Pyrodex.
And although this might now be necessary, I took off and replaced all the plastic bases before I shot them because I heard that sometimes there was a problem with them not coming off fast enough....
This might not make sense, but I have better luck using Pyrodex RS when shooting any kind of conical or powerbelt. When shooting the sabots then I use the Triple Se7en. Then I get some real nice groups.