The whidden meplat trimmer bullet holders are ideal bases for gauging boat-tail ogive if you have a Sinclair concentricity gauge. Simply make a piece that fits on the gauge stem that is deep enough underneath to accommodate bullet tips up to the ogive and you have a buhay type bullet comparator. As shown in the photos, I used a 5/8" diameter aluminum rod 1" long. First I drilled a small hole just big enough for the gauge tip screw to fit through all the way through the center of the rod. Next I drilled a .182 hole 3/8" deep for the gauge stem to fit into. Finally I drilled a .201 hole from the other end to within an 1/8" of breaking through to the stem hole. That leaves a thin piece in the middle for the tiny screw to hold the rod to the gauge stem.
Now, just place the gauge on the Sinclair stand as shown and set the Whidden bullet holder with a bullet in it on the stand near the gauge. Lift the rod you just attached to the gauge and drop the hole in it over the tip of the bullet. Presto! You can read a relative distance from boat-tail to ogive. Compare this distance on each bullet in you lot to segregate them into longest and shortest batches.
It's not bad looking and from my understanding of the buhay, it works just like it.
Now, just place the gauge on the Sinclair stand as shown and set the Whidden bullet holder with a bullet in it on the stand near the gauge. Lift the rod you just attached to the gauge and drop the hole in it over the tip of the bullet. Presto! You can read a relative distance from boat-tail to ogive. Compare this distance on each bullet in you lot to segregate them into longest and shortest batches.
It's not bad looking and from my understanding of the buhay, it works just like it.