30BR from 6x47L
- Thread starter RJM
- Start date
B
bglenn
Guest
You would have to push the shoulder back about 3/8" on the 6.5 x 47 Lapua. Lots of work ? 6BR Lapua brass has a small flash hole and small primer and is great brass.
Glenn
Glenn
Dick Grosbier
Club Coordinator
Why Bother doing it ???
30x47 Lapua is no better brass than the 6BR Norma Lapua brass, it costs more and you will need about $100 worth of case forming dies to push the shoulder back. Then, and I speak as a person who formed 6BR cases from the URBR brass back in 1983 you end up with a case with a very thick shoulder .
Dick
30x47 Lapua is no better brass than the 6BR Norma Lapua brass, it costs more and you will need about $100 worth of case forming dies to push the shoulder back. Then, and I speak as a person who formed 6BR cases from the URBR brass back in 1983 you end up with a case with a very thick shoulder .
Dick
jackie schmidt
New member
Also
The resulting powder capacity might be a less, as what usually happens when making a shorter casae from a longer one. But that probably would not be that big of an issue, as 30's made from a PPC or Grendal case seem to perform at the same level as the BR.
What you would be doing is simply trading "work for work". Besides, if you make your cases by "blowing them out", there is hardly any work involved at all. ................jackie
The resulting powder capacity might be a less, as what usually happens when making a shorter casae from a longer one. But that probably would not be that big of an issue, as 30's made from a PPC or Grendal case seem to perform at the same level as the BR.
What you would be doing is simply trading "work for work". Besides, if you make your cases by "blowing them out", there is hardly any work involved at all. ................jackie
So, Jackie...
So, Jackie, your preferred way to blow out the 6BR? Bullet or COW?
The reason I ask about forming the longer case is that I played with the 308x1.5" about 20 yrs ago. My version was to just run the 308 reamer in short and form the cases with shortened standard dies. It was no problem to push the shoulder back 1/2 inch & trim the cases with a shortened trim die. I had to use an extension shell holder, though. The shoulder angle of 20 degrees probably made pushing the shoulder back easier than with it would be with the BR's 30 degree shoulder.
The round shot OK, with the original long Rem BR brass reformed, sierra 100 HP bullets, and the barrel was a standard chrome moly Shilen 1-12 twist. Later I made the barrel a 308x1 5/8" and then a 308x1 3/4". They all shot well & I had a lot of fun with that one barrel!
Regards, Ron
So, Jackie, your preferred way to blow out the 6BR? Bullet or COW?
The reason I ask about forming the longer case is that I played with the 308x1.5" about 20 yrs ago. My version was to just run the 308 reamer in short and form the cases with shortened standard dies. It was no problem to push the shoulder back 1/2 inch & trim the cases with a shortened trim die. I had to use an extension shell holder, though. The shoulder angle of 20 degrees probably made pushing the shoulder back easier than with it would be with the BR's 30 degree shoulder.
The round shot OK, with the original long Rem BR brass reformed, sierra 100 HP bullets, and the barrel was a standard chrome moly Shilen 1-12 twist. Later I made the barrel a 308x1 5/8" and then a 308x1 3/4". They all shot well & I had a lot of fun with that one barrel!
Regards, Ron
jackie schmidt
New member
Ron
What I did was take a 6BR barrel, chuck it up true, and simply ream the neck portion out to .330. You load up a standard 6BR, and fire it in that chamber. What comes out is a formed non neck turned 30BR Case. The shoulder in the correct place. The very end may be "curled" a little, but that is taken care of when you do the final neck up for your neck turner.
When forming this way, the case retains most of it's originol length, so I have a reamer that reflects this with a overall final chamber length of 1.550.
Most of the shooters down here in our area make their cases this way, and have a barrel to make the cases.
One note, there is no danger at the range forming cases this way, as you are shooting a 6mm bullet down a 6mm barrel. There is some contraversy when blowing out a 220 Russian in a 6mm barrel to make aq 6PPC because bullets might go anywhere.........jackie
What I did was take a 6BR barrel, chuck it up true, and simply ream the neck portion out to .330. You load up a standard 6BR, and fire it in that chamber. What comes out is a formed non neck turned 30BR Case. The shoulder in the correct place. The very end may be "curled" a little, but that is taken care of when you do the final neck up for your neck turner.
When forming this way, the case retains most of it's originol length, so I have a reamer that reflects this with a overall final chamber length of 1.550.
Most of the shooters down here in our area make their cases this way, and have a barrel to make the cases.
One note, there is no danger at the range forming cases this way, as you are shooting a 6mm bullet down a 6mm barrel. There is some contraversy when blowing out a 220 Russian in a 6mm barrel to make aq 6PPC because bullets might go anywhere.........jackie
Dick Grosbier
Club Coordinator
Maybe we can make up for the increased cost of the 6x47 brass with what is saved in powder with the smaller capacity case.
Pete Wass
Well-known member
Interesting concept
But i don't think there would be enough powdah to make the speed we need but it is an interesting concept. I have a few pieces of wrecked brass and may try to do it. I'll keep ya posted.
P
But i don't think there would be enough powdah to make the speed we need but it is an interesting concept. I have a few pieces of wrecked brass and may try to do it. I'll keep ya posted.
P
jackie schmidt
New member
Pete
In Varmint for Score, it is pretty well established that the 112 to 118 grn bullets that have become the mainstay love a velocity at about 3000 fps, easilly reached with even the 30PPC............jackie
In Varmint for Score, it is pretty well established that the 112 to 118 grn bullets that have become the mainstay love a velocity at about 3000 fps, easilly reached with even the 30PPC............jackie