So here's a data point...I switched my 25-45 barrel on to my new SSK flatside frame and took it to the range with the same loads as I shot last session on the Contender frame. I didn't get all the way through my load ladder but the out come was very evident just with a few groups down range.

The factory rounds are touching at 50 yards and hitting essentially the same point of impact as with the other frame. The first 3 loads all showed sub-MOA (an improvement over the performance last session) and again, essentially the same point of impact that it had with the same barrel, grip and forend on the other frame.
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