6.5 X 50 Arisaka Model 38 bore question ?

[JWFilips]

Can someone knowledgeable in these rifles Please tell me what the rifling is supposed to look like?
I have one with what I would call a pretty clean bore. There appears to be plenty of rifling but it seems very shallow almost like Marlin micro-groove It this normal? The soft lead slug measures .263"

[Multigunner]

Could the grooves be heavily metal fouled?

[bruce drake]

T38 arisaka barrels were rifled in the Metford Style. Polygonal rifling.

[Texas by God]

Lucky you with the .263" bore. Arisakas are neat.

Sent from my SAMSUNG-SM-G930A using Tapatalk

[JWFilips]

Could the grooves be heavily metal fouled?
Bore is very clean. Even Sweet's can't pull a blue color. Probably the cleanest Mil Surp Bore I have seen!

I have heard something about the way the bore looks just wanted to confirm! Think Bruce may have answered it.
.......lots of rifling just not looking like anything I have seen before in a Mil Surp!

[bruce drake]

You'll enjoy getting it to shoot.

[junkbug]

Even when new, the rifling edges are not sharp. It takes some getting used to.