cornchuck
Well-Known Member
I have been using a Redding Type S full length rising die for my .308 for about 8 years now. I started off running Remington brass. Got the recom mended bushing for the brass and everything was fine. I switched to Lapua brass a few years ago. Again, got the recommended bushing and again everything was fine.
I put a new batch of Lapua brass in service just recently. Loaded up my usual load of 42.5 grains of Varget and 175gr Sierra TMK's. I wasn't expecting much out of virgin brass, just fire forming. They shot great.
Got them fire formed and wanted to try Nosler's 175 RDF for a OCW test. I only loaded 33 rounds for the test. Decided to load the rest (67 out of 100) with my usual load as mentioned above. I started to load and I noticed bulge half way up the neck from the shoulder. First thought was the bushing. Did I have the right on in? Took the die apart like I do regulary for cleaning, to see if the right bushing was in. It was. .335" bushing for this brass.
So I got to measuring things. Where you are suppose to measure for the bushing on the brass, i got .338". My first thought was that is a little tighter neck tension than I want. I got to looking closer, I can see where the base of the bullet is bulging the brass out. Between the shoulder and base of the bullet, it measured .333". I don't think that should be right. I measured the inside of the .335" bushing and got .332"
Questions are:
1. Even if the bushing is marked .335" shouldn't the inside of the bushing measure .335"?
2. Can I shoots these or pull the bullets and start over?
Please see pictures below
Jason
I put a new batch of Lapua brass in service just recently. Loaded up my usual load of 42.5 grains of Varget and 175gr Sierra TMK's. I wasn't expecting much out of virgin brass, just fire forming. They shot great.
Got them fire formed and wanted to try Nosler's 175 RDF for a OCW test. I only loaded 33 rounds for the test. Decided to load the rest (67 out of 100) with my usual load as mentioned above. I started to load and I noticed bulge half way up the neck from the shoulder. First thought was the bushing. Did I have the right on in? Took the die apart like I do regulary for cleaning, to see if the right bushing was in. It was. .335" bushing for this brass.
So I got to measuring things. Where you are suppose to measure for the bushing on the brass, i got .338". My first thought was that is a little tighter neck tension than I want. I got to looking closer, I can see where the base of the bullet is bulging the brass out. Between the shoulder and base of the bullet, it measured .333". I don't think that should be right. I measured the inside of the .335" bushing and got .332"
Questions are:
1. Even if the bushing is marked .335" shouldn't the inside of the bushing measure .335"?
2. Can I shoots these or pull the bullets and start over?
Please see pictures below
Jason