I cast some 357 mag hp bullets today using the Mihec 359-640 mold.
Looking for reload recipe using this bullet and BR-5 powder from Bartlett reloaders ( gi brass) ?
the description of this powder says to use Unique load data.
I cast some 357 mag hp bullets today using the Mihec 359-640 mold.
Looking for reload recipe using this bullet and BR-5 powder from Bartlett reloaders ( gi brass) ?
the description of this powder says to use Unique load data.
I’m not sure the details on the 359-640, but I’ve been working on a load for the Mihec 150kt clone of the rcbs mold. These are probably pushing +p in .38 special. Using mixed headstamp brass and Federal small pistol primers. I got my BR-5 a month or so ago. I tried 5.0, 5.2, 5.6. All were pretty good, but I think 5.6 was the best. These were shot in a 357 magnum model 19. I would not shoot them in a .38 without at least running them over a chronograph. I tried 6.0 and 6.7 in .357 brass and the 6.7 load was better I think.
Maybe this will help. Keep us posted if you come up with something that works good for you.
BP | Bronze Point | IMR | Improved Military Rifle | PTD | Pointed |
BR | Bench Rest | M | Magnum | RN | Round Nose |
BT | Boat Tail | PL | Power-Lokt | SP | Soft Point |
C | Compressed Charge | PR | Primer | SPCL | Soft Point "Core-Lokt" |
HP | Hollow Point | PSPCL | Pointed Soft Point "Core Lokt" | C.O.L. | Cartridge Overall Length |
PSP | Pointed Soft Point | Spz | Spitzer Point | SBT | Spitzer Boat Tail |
LRN | Lead Round Nose | LWC | Lead Wad Cutter | LSWC | Lead Semi Wad Cutter |
GC | Gas Check |