Jap 7.7 Ammo...Safe to Shoot?
Friend of mine has some original military surplus Jap 7.7 ammo. Some are loose rounds, but he also has numerous charger clips of 30 rounds each, which I assume is meant for loading into a machine gun. Ammo looks relatively clean with no corrosion anywhere. I saw no head-stamp on any of the rounds I looked at, so there is no way to identify as to when or where it was made.
I recall reading that the Arisaka receiver was one of, if not the strongest receiver of all war-era military rifles made. I also have heard that MG ammo was usually loaded hotter than that which was intended for rifle use only. That being said;
1) Is any of this ammo safe to shoot?
2) Is the MG ammo safe to shoot in an Arisaka type 99 rifle?
Appreciate any & all comments on this. I can get it for a fraction of what commercial ammo is selling for but if it won't work, then its not such a good deal...
Thanks, --728shooter