Hi Daryl, mine did the same regarding regulation. With 120gr the barrels were "regulating" into one group at 50m. The problem however was that the same barrels shot best with 75 grains. With 120gr required for "regulation" groups were the size of pizza box at 50m! Before I settled on 562 prb with a 10 thou patch I tested other sizes(570,575),patches, and conical (2 kinds of minie and a Real) etc.

All the "hold issues" arose from the fact I was trying to "make it work" with a lighter load than required for regulation. Even at 90 grains it shot acceptably (increasing beyond it spread group size greatly) and my "special" hold allowed it to recoil more to the side resulting in some success (maybe 30% of the time).

Also the right barrel shot groups half the size of the left even with best load.

So when I discovered both barrels are bowed (left much more) I thought I can improve on this significantly by straightening them and regulating them to cross less (for the best load).

Thanks 93x64mm.