Mid Bead...Rhyme or Reason

[Autumn Daze]

Being that it has been raining for three days here in New England and my ark is in the shop I thought I would throw this out to you guys to ponder.

I took six guns that are equipped with twin beads out of the safe and measured mid bead location. And guess what.. I can,t come up with any rhyme or reason to where they are located. What do ya'll think?

VH 20ga. 14 1/4" LOP 1 3/4"DAC 3"DAH 30" barrels mid bead 15" from muzzle(now that seems to make sense)

DH 12 ga. 14 1/4"LOP 1 7/8"DAC 3"DAH 26" barrels mid bead 13 1/2"from muzzle

GHE 16ga.13 7/8"LOP 1 3/4"DAC 2 7/8"DAH 30" barrels mid bead 14 1/2" from muzzle

BH 12ga. 14 1/4" LOP 1 3/4"DAC 2 3/4"DAH 30" barrels mid bead 13 3/4" from muzzle

VHE 12ga.vent rib 14 3/4"LOP 1 1/2"DAC 2 1/2"DAH 32" inch barrels mid bead 18 3/8" from muzzle

DHE 12 gauge vent rib 14"LOP 1 1/2"DAC 2"DAH 32" barrels mid bead 14 1/2" from muzzle

So there you have it.One gun has the bead dead center in the barrel length.Two guns with the mid bead more than half the barrel length.And three guns with the mid bead less than half the barrel length.All are measured from the muzzles and all guns if it makes any difference are pistol grip guns.