That's interesting Jacko.
You certainly have a good shooter there.

I discovered, last time I zeroed mine, that the accuracy went off, after about 20 shots and I got some lead streaks, from the barrel, when cleaning it.
It could have been the .357" sized ones that left the lead. That was the only sizer I had at first, now I have a .358" sizing die, I think there will be no more problems. We had a bit of fun, knocking some silhouettes over, to get rid of them.
I'm waiting on a set of dies to come from CH4D. I have been using a set of 9 x 57 dies to neck size and load the rounds.
Some cases are tight, so they need full length sizing.

Cheers,
Tony