About those bullets........
I was just over at a fellow "enthusiast's" place and saw something interesting.
A box of 144gn, .311" diameter flat-based FMJ bullets.
The story is quite intriguing.
The raw material is the standard Oz 144gn, BTFMJ (ball projectile) for the 7.62 x 51 as loaded into L2A2 and F4 ammo by the Footscray factory.
These particular bullets have been run through dies that bump the boat-tail back out square and also push out the diameter to .311. I suspect that you would need something a little more robust than, say, the old Lyman "portable" press.........something equipped with a 3" hydraulic ram sounds about right.
He has had these bullets for several years and understands that the bloke who made them has gone to the big loading bench in the sky (or somewhere).
So, apparently, you CAN reform boat-tails into flat-bases AND increase the diameter a few thou.
I reckon Mr. Corbin might have the very tools to do the job, though, by the time you spend that much dough, unless you got the 7.62 bullets FREE, you may as well be making Mk7 projectiles from scratch.
Barnaul Cartridges list a 174gn, .311" FBFMJ in their on-line cattle-dog; anyone ever seen one!
Bumped up L2A2 Bullets to .311" and .323" et alia
These "Bumped up" bullets were made by Bruce Bertram ( Bertram Bullet Company, Seymour, VIC) back in the 1990s, using both MF/ADI 144 gn. projectiles and imported IMI (Israeli) M80 (US) 148 gn, Projies. I have several Packets of both .311 and .323" ( "8mm"..7,9mm for the Cognoscenti)...most were available at the many Gunshows that Bruce Visited when he first set up his Plant.
Nothing special...he just used the appropriate shaped Solid Shaping die with Meplat expeller Rod, and simply "Bumped up" the Milsurp Projectiles ( in a Factory Bullet Press). The L2A2 he got when Footscray closed and scrapped everything; the Israeli he got when he ran out of Aussie scrap. He was also importing Pre-formed Cups for Cartridge Drawing at the time from several sources.
AS to usefulness, these "Bump-ups" was Marginal. Good for Practice and Weekend Plinking, but not anything else. A niche to be filled at the time ( very hard to get cheap .311 and .323 Projies)
Of course, Now AVB-TS makes CNC "LEAD FREE" Projectiles in Military profiles, at affordable Prices
Currently .308 (US M2 and L2A2 Profiles) and .311 ( MkVII profile)
2015 release: Balle "D" Lebel, Geschoss "S" and "sS" Mauser, and Geschoss M30 (Steyr)
All Nominally "8mm" , but with diameters from .323" ( 7,9) to 326" (Lebel), and .329" (Steyr).
Brass Bullet weights about 5/6ths of Lead-core Bullets, about 7/8ths of Steel core (German) Types.
Doc AV
AV Ballistics Technical Services
info@avballistics.com.au
Brisbane Australia
Yes, we ship Internationally, if you can afford the P&H Air Parcel. ( 100 Mark VII brass projies are 1 Kg...(2,24 Pounds).
---------- Post added at 11:19 AM ---------- Previous post was at 11:16 AM ----------
These "Bumped up" bullets were made by Bruce Bertram ( Bertram Bullet Company, Seymour, VIC) back in the 1990s, using both MF/ADI 144 gn. projectiles and imported IMI (Israeli) M80 (US) 148 gn, Projies. I have several Packets of both .311 and .323" ( "8mm"..7,9mm for the Cognoscenti)...most were available at the many Gunshows that Bruce Visited when he first set up his Plant.
Nothing special...he just used the appropriate shaped Solid Shaping die with Meplat expeller Rod, and simply "Bumped up" the Milsurp Projectiles ( in a Factory Bullet Press). The L2A2 he got when Footscray closed and scrapped everything; the Israeli he got when he ran out of Aussie scrap. He was also importing Pre-formed Cups for Cartridge Drawing at the time from several sources.
AS to usefulness, these "Bump-ups" was Marginal. Good for Practice and Weekend Plinking, but not anything else. A niche to be filled at the time ( very hard to get cheap .311 and .323 Projies)
Of course, Now AVB-TS makes CNC "LEAD FREE" Projectiles in Military profiles, at affordable Prices
Currently .308 (US M2 and L2A2 Profiles) and .311 ( MkVII profile)
2015 release: Balle "D" Lebel, Geschoss "S" and "sS" Mauser, and Geschoss M30 (Steyr)
All Nominally "8mm" , but with diameters from .323" ( 7,9) to 326" (Lebel), and .329" (Steyr).
Brass Bullet weights about 5/6ths of Lead-core Bullets, about 7/8ths of Steel core (German) Types. The Lebel Balle D will be pretty close to its original solid "Bronze" ( 90/10 Brass) weight of 198 grains.
Doc AV
AV Ballistics Technical Services
info@avballistics.com.au
Brisbane Australia
Yes, we ship Internationally, if you can afford the P&H Air Parcel. ( 100 Mark VII brass projies are 1 Kg...(2,24 Pounds).