Is it best to size to throat or bore when using PC bullets in a rifle?
Is it best to size to throat or bore when using PC bullets in a rifle?
Bore. slug the barrel for optimum performance.![]()
Bore size is the barrel measured inside the lands of the rifling, grove size, or I-2 thousandth over grove size dimension is what the boolit should be sized to. Anyway this is my understanding of barrel rifling terms and recommend sizing practices.
Kenneth
I use the same "rules" for PCed bullets that I use for plain nekkid lead...
My Anchor is holding fast!
KennethF has it correct.
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 |