Quote Originally Posted by gotcha
jeffman, It appears you have different H/S on each rifle. I'm a little leery about using the sinclair tool to chk hd sp. If you have a set of 1/4" or 3/8" drive sockets handy you may find one that will slip over the neck & rest closer to the center of the shoulder while not touching the neck. It will make a good HS gauge. Try this: Measure the fired case w/ socket over neck. Then F/L size a 2nd case. Note difference in measurements. Example: Fired case measures .008" longer than sized case. Next, back die out, insert a .006" feeler gauge between S/H & die. Tighten die down firmly by hand. Resize a third case w/ this die setting. This will yield a case shoulder to base meas .002" shorter than fired case. Get a set screw type locking ring for this die & set aside for sizing w/ this rifle only. Or buy a HD SP gauge & comparator set up & reset HD SP. Just my .02 cents
What he said.........