Roy Dunlap, I quoted Roy Dunlap, after posting the quote I had members on this forum respond with "I have never heard of him".
Universal head space gage: What was that about, he was before the Internet, in his book he said he purchased head space gages then he said he knew friends that made them and he said they worked.
I do not buy that part about head space and no head space, I insist there is a difference in the length of the chamber from the datum to the bolt face and the length of the case from the datum to the case head. The difference is clearance.
F. Guffey