kopcicle
Member
.277-08
First off, ours, not theirs. I mean a .277 on necked down .308 brass.
Next, with nothing more than a neck reduction and possibly a nod to P.O. Ackley.
Shouldn't see pressure signs until 3k F/Sec
Probably sit between the 6.5 CM and the.308.
Why?
Why not?
Okay the .277 Fury is a solution in search of a problem. This is evidenced by the hybrid case.
We've all known for years that any load capable of expanding a primer pocket to failure is going to be a barrel burner next. So, fix the primer pocket with a steel case head while retaining the brass cartridge walls for chamber sealing. What could go wrong? < ---rhetorical, in case you don't get sarcasm.
I just like the idea of a commercial .277-08 that I can feed to an AR-10 or FAL. The .270 has been so popular for so long that there are any number of projectiles available for nearly any intended use, in a large variety of weights, save for one option. There are no commercially available FMJ bullets in any quantity and most monolithic bullets are still of the expanding variety. Go ahead and cite all the "Acme, trophy bonded solid, boutique manufactured solids" you care to, there just aren't that many of them. This is a bit of a curiosity because I grok screw machines and CNC turning centers. The kind of answers itself since if the code or operations exist than it's just a question of scaling to the demand.
No need for new brass. It's .031" fer crippled St Dupont on a crutch. Thats a gap of only .0155" all the way round the bullet. I don't recommend achieving this through a neck size but anneal and swag it down is too much of a bother for you? A well designed 140g at 2950 F/Sec should be supersonic to at least 1,100 yds and arguably as far as 1,300 without any pressure signs or advanced barrel erosion. Most of us with a lathe and a barrel blank are only a set of dies away from trying.
First off, ours, not theirs. I mean a .277 on necked down .308 brass.
Next, with nothing more than a neck reduction and possibly a nod to P.O. Ackley.
Shouldn't see pressure signs until 3k F/Sec
Probably sit between the 6.5 CM and the.308.
Why?
Why not?
Okay the .277 Fury is a solution in search of a problem. This is evidenced by the hybrid case.
We've all known for years that any load capable of expanding a primer pocket to failure is going to be a barrel burner next. So, fix the primer pocket with a steel case head while retaining the brass cartridge walls for chamber sealing. What could go wrong? < ---rhetorical, in case you don't get sarcasm.
I just like the idea of a commercial .277-08 that I can feed to an AR-10 or FAL. The .270 has been so popular for so long that there are any number of projectiles available for nearly any intended use, in a large variety of weights, save for one option. There are no commercially available FMJ bullets in any quantity and most monolithic bullets are still of the expanding variety. Go ahead and cite all the "Acme, trophy bonded solid, boutique manufactured solids" you care to, there just aren't that many of them. This is a bit of a curiosity because I grok screw machines and CNC turning centers. The kind of answers itself since if the code or operations exist than it's just a question of scaling to the demand.
No need for new brass. It's .031" fer crippled St Dupont on a crutch. Thats a gap of only .0155" all the way round the bullet. I don't recommend achieving this through a neck size but anneal and swag it down is too much of a bother for you? A well designed 140g at 2950 F/Sec should be supersonic to at least 1,100 yds and arguably as far as 1,300 without any pressure signs or advanced barrel erosion. Most of us with a lathe and a barrel blank are only a set of dies away from trying.
