I've read in a couple of place that Miroku bore size on the .38-55 is .377. Have any of you "slugged" your barrel to verify this. If that diameter is correct, are you using .379 lead bullets?
I've read in a couple of place that Miroku bore size on the .38-55 is .377. Have any of you "slugged" your barrel to verify this. If that diameter is correct, are you using .379 lead bullets?
I cast for the 44-40 WCF. Came across a Miroku lever gun that would not chamber the cartridge until I sized the bullet down to fit.
mine is .381 in the throat I would guess the bore is .377 , I paper patch my bullets to fit the throat at .381 for a tight fit with finger pressure , accuracy is excellent out to 200 yard.
Do yourself a favor and perform a chamber casting to include throat and a bit of the bore. That'll tell you all you need to know about bullet fit for your gun. It's not rocket science, and I plain don't understand why guys are afraid to do it!
My new 1894 Miroku/Winchester Sporter in 38-55 slugged .375, as Winchester told me.
I size to .376 (powder coat).
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 |