Next thought:

How many "grooves" does a 7.7 x 58 Type 99 Arisakaicon have?

Type 38 and 99 Arisakas used "polygonal" / "Metford" style rifling. Type 99s are, apart from the "last-ditch" models, also supposed to have chromed bores.

Before they are fired, the bullets externally resemble the .303 Mk7 projectile . However, whilst having a few different Japanese 7.7 cartridges in my little collection, I have never actually owned an Arisaka rifle.

One of the "funnies" that an uncle of mine had was a Type 99 Arisaka, "personally liberated" during his government-sponsored tour of New Guinea and the South-West Pacific. This particular one had been "re-chambered" in Oz to run bog-standard .303 ammo. The chamber was sleeved, a new chamber cut and the bolt face was opened up to suit the larger rim. Not the slickest of feeders, it worked well enough for a "farm gun", which is just what it became, full stock and all (bayonet optional).

Over to the forum!!
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