I reload 7.7 Arisaka with Remington brand .311 180gr bullets I buy from MidwayUSA in a bulk pack of 500. They are cheaper than pulling apart loaded ammo for bullets (although that is a good strategy for saving bullets from ammo that is corroded, has hangfires, or when you absolutely have no other options).
I have heard that Graf's has cheap brass in this caliber, but I always cut 30-06 brass to length and resized in a 7.7 die. 8x57 is so close dimensionally that it does not need to be trimmed before resizing. I stick with 30-06 to keep consistent head stamps and because 8x57 is so damn close that there is tremendous room for error if you ever lost track of what you did with the brass. 30-06 headstamped brass that is 57.5 long is instantly recognizeable for what it is. I also use permanent marker to stain the case heads for visual ID. My advice is to be very careful if you make a decision to go this route.
Lots of folks will mention that 7.7 has a different head size than 30-06. I have reference books that show them .001 apart, but I have also ran a mic over actual Japanese military ammo and it reads .473" every time. Chambers in these rifles are often oversized and case heads will stretch. This can be dangerous if you are using tired old '06 brass rather then new high quality Norma brass. That is the best reason not to use trimmed and sized 30-06 brass to form 7.7 Arisaka.
I like to load moderate to light loads with 4895 powder for a pleasant shooting experience. Start with a minimum load from the powder manufacturer's data and see how your accuracy runs. Why beat yourself up?
You can also set back the barrel to shorten the chamber to .308 Win length. I hate screwing with historical rifles in this manner. Folks used to ream the chambers out to 30-06, which is damgerous due to the thin chamber walls at the new cartridge shoulder and neck location due to the quick taper point of the barrel profile. Also difficult to ream due to the chrome chamber and bore. I have one reamed to 30-06 way back when by God knows who, and I shoot it, but it makes me nervous. The US government did this in the Korean war so it must be reasonably not-too-unsafe.
I think the Type 99 Arisaka is a great shooting rifle and the rear peep/ghost ring sight is an excellent feature.
I have heard that Graf's has cheap brass in this caliber, but I always cut 30-06 brass to length and resized in a 7.7 die. 8x57 is so close dimensionally that it does not need to be trimmed before resizing. I stick with 30-06 to keep consistent head stamps and because 8x57 is so damn close that there is tremendous room for error if you ever lost track of what you did with the brass. 30-06 headstamped brass that is 57.5 long is instantly recognizeable for what it is. I also use permanent marker to stain the case heads for visual ID. My advice is to be very careful if you make a decision to go this route.
Lots of folks will mention that 7.7 has a different head size than 30-06. I have reference books that show them .001 apart, but I have also ran a mic over actual Japanese military ammo and it reads .473" every time. Chambers in these rifles are often oversized and case heads will stretch. This can be dangerous if you are using tired old '06 brass rather then new high quality Norma brass. That is the best reason not to use trimmed and sized 30-06 brass to form 7.7 Arisaka.
I like to load moderate to light loads with 4895 powder for a pleasant shooting experience. Start with a minimum load from the powder manufacturer's data and see how your accuracy runs. Why beat yourself up?
You can also set back the barrel to shorten the chamber to .308 Win length. I hate screwing with historical rifles in this manner. Folks used to ream the chambers out to 30-06, which is damgerous due to the thin chamber walls at the new cartridge shoulder and neck location due to the quick taper point of the barrel profile. Also difficult to ream due to the chrome chamber and bore. I have one reamed to 30-06 way back when by God knows who, and I shoot it, but it makes me nervous. The US government did this in the Korean war so it must be reasonably not-too-unsafe.
I think the Type 99 Arisaka is a great shooting rifle and the rear peep/ghost ring sight is an excellent feature.