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Redding's site states the following: "These top of the line single station presses have the largest window opening and longest usable ram stroke of any in their class. Both the original Big Boss and the new Big Boss II reloading presses have all the desirable features of the “Boss” reloading...

CMaier, If you would be kind enough to take a deep breath and read the post, you would see that I confirmed the manufacture's representatives advice. I am just giving the reason that it is so. BTW I have been Journeyman tool & die maker for 39 years. Gort

The longer lever has to move farther to move the dial the same amount, hence greater resolution. However the marking on the dial have a lesser value. Example: if I have a stylus 1" long from the pivot to the center of the ball and I move the workpiece .005, the dial will register .005. If I...

The face of the dial remains the same but the arc of the stylus does not. As the lever arm becomes longer, the end of the lever must move farther to rotate the same arc. Gort

I believe, gentlemen, you are in error. When you increase the length of the stylus resolution goes up not down. .0001 movement on a .62 long stylus is about the same arc as .000025 movement on a 2.5" stylus. Hence approx. 4 times more resolution, trig. it out. Gort

From my understanding, metals expand in all directions uniformly with heat. If we take a barrel cross section with a 1.000 OD and a .300 ID that leaves a wall thickness of .350. The circumference of a .300 bore is .942. The diameter of the ID and OD will increase in proportion to their...

My two Harrells dies are marked "15" and "35". Does that mean they are -.0015 and -.0035 ? Gort

Harrells full length dies. I have a question, I have different dies for different PPC barrels (different reamers). The dies have a number stamped on the bottom die face. Do those numbers correspond to anything I can correlate to a chamber dimension? Thanks, Gort

I have been a journeyman Tool & Diemaker since 1978. Their is no ISO 1.6mm thread pitch (1.5mm then 1.75mm), 1.6mm is not on a metric pitch gauge and is not on metric engine lathe (non-CNC). I suspect someone tried to measure a 16tpi thread with a caliper and declared it to be 1.6mm, because the...