Multi Radial Rifling

[BudT]

Who can tell me why I would want it, and your experience with it in your decision.

[togor]

https://www.thefirearmblog.com/blog/2017/02/06/sabattis-multi-radial-rifling/

Here you go.

[barretcreek]

Similar to the oval bore (Chas. Lancaster?).

[Art]

Similar to the oval bore (Chas. Lancaster?).

Also quite similar to Metford rifling.

[BudT]

Similar to polygonal. MRR is something that interests me because of it's characteristics I also wonder if it were done in a gain twist what additional benefits could be gained in performance. I probably should have asked a barrel maker about this for the obvious reasons but thanks for the interest.

[Johnny P]

Didn't the Japanese use it in WWII?

If what they advertise is true that should put the .220 Swift around 4600 fps. Wonder if the bullet can take that much rotation and stay together?

[togor]

Didn't the Japanese use it in WWII?

If what they advertise is true that should put the .220 Swift around 4600 fps. Wonder if the bullet can take that much rotation and stay together?

Could back off the twist rate accordingly right?

[jon_norstog]

I wouldn't use that setup with black powder. I wonder what it does to chamber pressure, and whether a gain twist would lower peak pressure. In a case like thaT maybe it would be the bomb for low-power cartridges like 30/40, 30-30, 300 Savage, .35 Remington, etc.

jn

[lyman]

Didn't the Japanese use it in WWII?

If what they advertise is true that should put the .220 Swift around 4600 fps. Wonder if the bullet can take that much rotation and stay together?

Could back off the twist rate accordingly right?

solids will probably go that fast,

maybe a good thicker skinned hunting bullet, if they make one

at that speed, even with a slower twist a thin skinned varmit or match king might not make it