I just bought one of these molds to use with a 10 1/2 inch A.R. pistol with a 1/8 twist does anybody have any sort of low data for a super sonic 300 blackout I would like to try to get it to shoot about 1300 to 1400 ft./s is that even possible
I just bought one of these molds to use with a 10 1/2 inch A.R. pistol with a 1/8 twist does anybody have any sort of low data for a super sonic 300 blackout I would like to try to get it to shoot about 1300 to 1400 ft./s is that even possible
Since you’re not constrained by 1050-1075 threshold it should be easy to find an accurate load with H110 or similar powders.
You never know how you rank amongst men 'til you have seen what will break another man.
The original "Bluejay" US Army/ US Navy 1945-1970.
You will not make it past 1100 FPS with that heavy of a bullet in a 10.5” barrel. Try a 150gr or less bullet.
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 |