7.7 Jap

[Bluedot]

Has anyone had any great success with a 31 inch, Stellite(chrome) lined barrel, old 7.7 Japanese rifle and cast bulllets?

[doc25]

Hope to soon. Waiting for the rifle to arrive. Planning to use my lee c312-185-1R and 4064.

[versifier]

Lee C312-185 is a good boolit in my Arisaka. I had best results with 3031, but RE7, 4895, & 4064 worked well. Only your rifle can tell you what it likes best.

[Bent Ramrod]

Mine has the chrome bore. Slugging it showed a couple of narrow spots of maybe .315" or so, with the remainder somewhat larger. I use the Ideal 311299 unsized and a version of the 311291 with the shank oversized at .313" and the nose lapped to .303". It will generally stay under 4" at 100 yards.

[hydraulic]

My 99 arisaka is not selfish with its bore dimensions; it spreads them around to suit just about anyone. There one in there of nearly every size so I shoot my old 31141 unsized over 10 grs of Unique and it shoots about as good as my M1 and '03's.

[Patrick L]

I have had good luck with about 10 grains of Green Dot and a 190-200 gr bullet. I currently use a SAECO 301, sized .311

[jonk]

Mine does best with a bullet that is a bit oversized, the Lyman 314299. Though it just doesn't like cast very well- my best efforts so far are about 5" at 100 yards. Ok but not great- it shoots BEST with pulled jacketed argentine bullets of .313 diameter- I just transfer the charge from the argentine case to the Jap after verifying weight. 2" at 100. My bore slugs .313 anyhow.

[Freightman]

My 7.7 is one of my more accurate rifles it loves a heavy boolit and a full case of IMR 5010. Mine shooots a .3115 best and am fixing to try a new .314 185/190 g in it when the wind drops below 50mph.

[txpete]

I use the lee 185 lino/ww mix and size .314.unique and AA5744 has turned some good groups.
the rifle was a present from a friend.it was done back in the 50-60's.the scope is a fine reticle 4X redfield.
pete