It was likely made for a .25-35 Winchester leveraction. The first three numbers are the bullet diameter. (They might drop a thousandth larger.) The second batch of numbers are the weight in grains of the castings. LFN is long flat nose and are typically used in lever actions and revolvers. The bullet would work in a .257 Roberts or .25-06 just fine if they would feed from the staggered magazine which you never know until you try it.
LBTs are top shelf molds with wonderful casting qualities.
Rule 303
Thanks Piedmont,
Just what I needed.
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 |