has anyone used the 5 groove rifling and what are the pro's and cons
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has anyone used the 5 groove rifling and what are the pro's and cons
I had a 24" Broughton 5C in 6BR it shot the nearly the same FPS as a 28" Walther 6BR with the same charge. There are no real cons with these premium barrels other than the price.
Ordered a 3 Groove from Pac Nor but was told it wasn't available for the .270. (6.8 SPC) Settled for a 5 grove and it shoots great and cleans real easy. Real good shooter. The less grooves the barrel has, the easier it is to clean? Havn't seen any difference so far. Just another excuse to fire more rounds to prove a point. ;)
i am trying to plan my first build out and am thinking of getting a 5r i like the idea of pressure not being applied dirrectly across from opposite side, the velosity gain. now i have to figure out the contour, and length
5R rifling is essentially 5 grooves (meaning the lands apply pressure from non-opposing directions) and a radiused transition from land to groove. This configuration was derived after analyzing the shape of the engraving on rifle bullets. It is believed this rifling produces less fouling and improves velocities.
hmmmmmm.....5 groove with radiused transition; almost sounds like Metford (1860's) and Enfield (1880's) rifling technology ;D ;D ;) whats old is new??
Its nothing new it just works, but so does a lot of other rifeling. I added Rock Creek to my barrel line up because of the high demand that the 5R has and no one is really offering it for prefit Savages.
Thompson Center is using the 5R rifling on the Icon which appear to get good reviews, would like to try a 5R on my Savage 12.
+1 on the 5R for a Savage 12. I'm thinking 30-06. Several brands to choose from. Let us know what you end up with.Quote:
Originally Posted by oldguy
Jeff
If you want to try something even more unique, go with a gain twist barrel.
Adrian
Or Henry pattern rifling!
I ordered a Bartlein 5R barrel in .264 about 4 months ago. It's supposed to be in next month.
Then to the gain twist rifling we can add progressive depth rifling......
Then we're really talking musketry technology! Put your red coat on ;D
I wear a gray coat I'll have you know!Quote:
Originally Posted by defoxer
How about choked/tapered bores?
Pretty soon they might come up with Whitworth rifling!
Red coat? Where'd this crumpet muncher slip in from?Quote:
Originally Posted by Eric in NC
I have wondered what the limitations of mechanically pre-fit polygonal barrel& bullet would be.Quote:
Originally Posted by Eric in NC
perhaps one groove in the barrel and a "key" in each bullet to ride the groove?
Works dandy in a Whitworth - just hard to make the bullets (for me at least).Quote:
Originally Posted by sha-ul
Jeff - maybe they will bring back Baker style rifling?
What have I started ::)
Guys, I've invented a new accuracy improvement to rifles; back-bored muzzle with exponention curved crown (did someone say Blunderbuss)
Well, that wouldn't be a rifle... ;)
unless you rifled it and had a bullet that increased in diameter as it spun.