loads for 7.7 mm Jap - The Firearms Forum

nsdread07 · 06-14-2009, 01:57 PM

My brother in law found this carbine at a yard sale. It is in very good condition and shoots fairly straight. He was able to purchase a box of shells at a local dealers for $50.00 for 20.Has shot 5. I know RCBS makes reloading dies and we have potentially 20 brass casings. But what is the bullet dia. .284 or larger and what would be a good powder to use?

Alpo · 06-14-2009, 03:22 PM

7.7 Jap uses .310/.311 bullets, just like .303 British or 7.62x54 Russian.

I'm pretty sure you can make brass out of 30/06.
http://stevespages.com/jpg/cd3006.jpg
http://stevespages.com/jpg/cd77x58japanesearisaka.jpg

Specs look pretty close.

JLA · 06-14-2009, 06:58 PM

The 7.7 jap is virtually identical to the .303 brit. except its rimless. You can safely use .303 brit data in the 7.7 jap.

06-14-2009, 01:57 PM	#1
nsdread07 Member Join Date: Apr 2009 Posts: 2	loads for 7.7 mm Jap My brother in law found this carbine at a yard sale. It is in very good condition and shoots fairly straight. He was able to purchase a box of shells at a local dealers for $50.00 for 20.Has shot 5. I know RCBS makes reloading dies and we have potentially 20 brass casings. But what is the bullet dia. .284 or larger and what would be a good powder to use? -->

06-14-2009, 03:22 PM	#2
Alpo Advanced Senior Member Join Date: Feb 2007 Location: NW Florida Posts: 8,662	Re: loads for 7.7 mm Jap 7.7 Jap uses .310/.311 bullets, just like .303 British or 7.62x54 Russian. I'm pretty sure you can make brass out of 30/06. http://stevespages.com/jpg/cd3006.jpg http://stevespages.com/jpg/cd77x58japanesearisaka.jpg Specs look pretty close. __________________ Meddle not in the affairs of dragons, for thou art crunchy, and taste good with catsup - George of Lod, Year of Our Lord 297 I always take precautions. Beware the Evil Bullet Fairies.

06-14-2009, 06:58 PM	#3
JLA TFF Moderator/Host Join Date: Feb 2007 Location: Heart Of Texas Contributor Posts: 17,318	Re: loads for 7.7 mm Jap The 7.7 jap is virtually identical to the .303 brit. except its rimless. You can safely use .303 brit data in the 7.7 jap. __________________ It takes 43 muscles to frown, 17 to smile, and 3 for proper trigger squeeze. The latest caliber or gear is no substitute for experience and skill. Rifles and cartridges don't make hits -- shooters do. Fact of life: After Monday and Tuesday, even the calendar says WTF!