Yes, that's good response. The other die was possibly geared toward the old 0.454" bullets that would have been authentic in cowboy days. It was mentioned earlier that some brass is thin. I've had dies that would resize most brands of .45 Auto just fine except for R-P which was thinner and quickly became work-hardened by resizing to the point it sprang back to diameter from any attempt to resize it. After maybe two reloads, the bullets would start falling in.
One problem that commonly occurs with tight crimps is that bending the case mouth inward leads to the brass behind it being lifted away from the bullet (see "overcrimped" example in the illustration below). The only die I know of that completely prevents that from occurring is Redding Profile Crimp die. It has a taper crimp shoulder that terminates in a roll crimp, so the taper holds the sides of the case against the bullet while the mouth is rolled inward. I recommend them, even though it means crimping separately from seating (a practice that generations of target shooters have found superior for accuracy to crimping and seating in one step).
You were correct in your earlier post that the flats on the inside jaws of a caliper make it impossible to get a good reading on small hole ID's. The error is to measure short. I've had them off by 0.002". If you want accurate measurements of hole diameters, inexpensive pin gauge sets will get you within 0.001" ±0.0002, depending on whether they are plus 0.002" or minus 0.002" gauges. You can buy sets of X grade pins in steps of 0.0001", but a 25 gauge set spanning ±0.0012" range centered around one value is about $215, but you need to want to gauge that size span pretty badly to spend that on it. The other thing you can do is buy either telescoping or ball-end small hole gauges. It takes some practice, but you can learn to adjust them so they just lightly, barely drag in a hole, and then pull them out and measure them with a thimble micrometer that has a 0.0001" Vernier scale or a digital one with 0.00005" resolution. This is more accurate than most people are able to use a dial caliper, even interpolating between graduations, and less expensive brands seem to work pretty well. The Vernier type in a 1 inch OD can be had for $17 from
CDCO Tools, and the digital ones are
as cheap as $30 there. These are not going to have the feel or absolute accuracy of Mitutoyo or Starret or other name-brands, but if they get you within about 0.00025", that is as close as anything the shooting world might require.
