primer depth
Quote from Reloader on August 24, 2010, 12:41 amI have a 550b and I was reloadin 7-30 waters and the primers were being install to far. So how can I adjust the primer depth so they are flush.. I shoot a t/c contender and head space is a big deal... mike
I have a 550b and I was reloadin 7-30 waters and the primers were being install to far. So how can I adjust the primer depth so they are flush.. I shoot a t/c contender and head space is a big deal... mike
Quote from Reloader on August 24, 2010, 2:45 pmPrimers are supposed to be seated at least .002" below flush with the head of the case, to an industry acceptable maximum of .009" below flush.
Headspace on the 7-30 waters case is controlled primarily by the thickness of the case rim, and in a T/C barrel, secondarily by how far the size die pushes the shoulder back. What is the catual problem you are encountering, the action not closing on a loaded cartridge, or the primer failing to ignite from the hammer fall? If the latter, does the primer ignite on a second strike? If yes, this indicates the primer is not seated deep enough initially, and the first hammer strike is finishing the primer seating so the second strike can ignite it.
Primers are supposed to be seated at least .002" below flush with the head of the case, to an industry acceptable maximum of .009" below flush.
Headspace on the 7-30 waters case is controlled primarily by the thickness of the case rim, and in a T/C barrel, secondarily by how far the size die pushes the shoulder back. What is the catual problem you are encountering, the action not closing on a loaded cartridge, or the primer failing to ignite from the hammer fall? If the latter, does the primer ignite on a second strike? If yes, this indicates the primer is not seated deep enough initially, and the first hammer strike is finishing the primer seating so the second strike can ignite it.
Quote from Reloader on August 24, 2010, 4:44 pmI dont have a problem ,I just noticed that after cleaning my cases real good , that my primers were seating deeper in the case. and I wasnt sure what did this and when I compared them to new shell the primers were seat deeper. I can find a case gage to help me tell if the dies are set perfect. I guess that is the real issue. Would a 30-30 case gage give me the proper head space. They make 7-30 waters cases out of 30-30 cases. Im new at this and I like these go-no gages.
I dont have a problem ,I just noticed that after cleaning my cases real good , that my primers were seating deeper in the case. and I wasnt sure what did this and when I compared them to new shell the primers were seat deeper. I can find a case gage to help me tell if the dies are set perfect. I guess that is the real issue. Would a 30-30 case gage give me the proper head space. They make 7-30 waters cases out of 30-30 cases. Im new at this and I like these go-no gages.
Quote from Reloader on August 24, 2010, 9:53 pmUnfortunately the shoulder on the 7-30 Waters case is longer (1.733")than the shoulder on a 30-30 (1.562"). Therefore you cannot use a 30-30 case gage for your 7-30 Waters. I have not found anyone selling a case gage for the 7-30 Waters.
Unfortunately the shoulder on the 7-30 Waters case is longer (1.733")than the shoulder on a 30-30 (1.562"). Therefore you cannot use a 30-30 case gage for your 7-30 Waters. I have not found anyone selling a case gage for the 7-30 Waters.