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View Full Version : Multi-Radial Rifling?



adamsgt
08-24-2018, 11:40 AM
Was going through the latest American Rifleman magazine this morning and saw an ad from Sabatti mentioning this type of rifling. Looks impressive but I wonder if I missed a discussion about it as it was introduced at the 2017 shot show. Any more info?

jackie schmidt
08-24-2018, 12:01 PM
Looks like a neat concept.

Are they forming the ID's profile by hammer forging, button pulling, or some type of machining operation?

I would think hammer forging would be the preferred method.

tim
08-24-2018, 04:44 PM
This appears o be a variation on a theme and it has been around here for a good ten years, one of the forms or MI (minimally invasive) rifling quite popular in rimfire benchrest.
I quess the leading maker is propably Dan Muller. His configuration look somewhat like a rolled up corrugated roof and the theory here is less engraving, no hard edge lands in an attempt to minimize the coriolus effect of lobbing a waxed lead slug at sub sonic speeds.
All the ones I know about are buttoned and taper lapped.
Some of them barely mark the slug.

mturner
08-26-2018, 12:00 AM
I have an old polygon rifled Shilen barrel, that I beleive was made in the 70's or 80's. It came from the TJ Jackson estate. This was the first barrel I ever chambered for my BR rifle in 30-30. It was a 14" twist 1.350 unlimited barrel, so I wound up with a 18# bag gun. Shot as good as any barrel I have ever owned, and still has a lot of life left. I ran 150 gr. match bullets at 2800 fps.

Michael

MilGunsmith
08-26-2018, 07:35 AM
Is this a variation on the 5-R rifling with more grooves?

adamsgt
08-26-2018, 11:06 AM
Is this a variation on the 5-R rifling with more grooves?

Here's a link to the Sabatti web site where you can read their claims. http://www.italianfirearmsgroup.com/news/sabatti-mrr-multi-radial-rifling

alinwa
08-26-2018, 12:45 PM
find out where to buy a blank and I'll try one

Pete Wass
08-28-2018, 01:42 PM
if someone could figure out how to put straight holes through them first, just sayin :)

Pete

alinwa
08-28-2018, 04:20 PM
if someone could figure out how to put straight holes through them first, just sayin :)

Pete

I hope they never do..... I have no idea how to make a straight barrel shoot!

Gimme a 20thou flopper and I'm Golden

brickeyee
08-30-2018, 12:41 PM
I hope they never do..... I have no idea how to make a straight barrel shoot!

Gimme a 20thou flopper and I'm Golden

Any evidence this is better (or as good as) than plain old cut rifling?

Butch Lambert
08-31-2018, 04:32 PM
I hope they never do..... I have no idea how to make a straight barrel shoot!

Gimme a 20thou flopper and I'm Golden

So true!

Butch Lambert
08-31-2018, 04:38 PM
I hope they never do..... I have no idea how to make a straight barrel shoot!

Gimme a 20thou flopper and I'm Golden

So true!