Hi. I am using "Top Grade Ammo" by Glen Zediker as my guide for reloading more consistent ammo. I am setting up a Forster Benchrest Die for my RRA LAR 15 in .223 using once fire LC brass. He suggests.004 less than measured using Headspace gauges for safe rounds.
My average over 10 cases is 1.463 with a low of 1.460 and high of 1.465. So less .004 from the average gives a target of 1.459. Does this seem good to you?
Also does this measurement change by using different cases? The reason I ask is I have brand new unfired Winchester cases that I am going to load for Hi Power rather than the LC for now anyway. I am going to resize that brass to match the once fired cases before I shoot it. Not really for the headspace as much as to fix the case mouths of the new brass. Thanks.
My average over 10 cases is 1.463 with a low of 1.460 and high of 1.465. So less .004 from the average gives a target of 1.459. Does this seem good to you?
Also does this measurement change by using different cases? The reason I ask is I have brand new unfired Winchester cases that I am going to load for Hi Power rather than the LC for now anyway. I am going to resize that brass to match the once fired cases before I shoot it. Not really for the headspace as much as to fix the case mouths of the new brass. Thanks.