Nitro X:

Glad you finally got your dies and components. Generally speaking, yes the bead is supposed to be nestled in the bottom of the V with all of the bead visible but none of the post. Presuming that your sights are reasonably close to zero, the sight picture that you describe will cause it to print high.

So, three into one inch plus one flier, right on right and left on left at 2100 fps. Hmmm. You don't want it to cross-fire at 50 yards. I like them to print right on right and left on left about 3/4" apart. Sounds like you might already be there and the high POI may be entirely due to the incorrect sight picture. Shoot the same load on a calm day and see what happens. Then try 106 and 107 grains. Work up a grain at a time and, as noted, look for the MOVEMENT of the individual barrel groups in relation to each other. If they begin to cross-fire a little with the heavier charges, drop back to 105.

I'll have to disagree (just a little) with .470. The .450 No. 2 standard was a 480 grain bullet over 80 grains Cordite for 2175 fps. However, IIRC that was in a 28" pressure barrel. In 24" barrels 2100 fps sounds about right to me.
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