cabelas modet 10t with 5r rifling

[savgebolt]

ive been looking at 6.5 creeds and found this model 10t at cabelas,,,,,they represent the rifling as 5r ,,,,,anyone have any thoughts on this,,,, i had never seen this associated with savage rifling , looking for opinions , advice
thanx

[Robinhood]

Savage has marketed 5R barreled rifles in the past. Do some research on 5R. I believe that true 5R was designed and possibly patented by Boots Obermeyer. Not certain about that.

[savgebolt]

Hmmm,,,,,wow,,, interesting,,, thanx robin,,, i know my TC Venture has whats called 5r rifling

[Bunky-Shooter]

5R rifling contains 5 lands and grooves and the lands have a sloping rather than straight wall.The rifling has 115 degree angle between the lands and grooves instead of the standard 90 degree angle. This supposedly reduces the friction and fouling. With my own experience i have found that my T/C Dimension 308 with 5r will group different weight bullets and charges much better. My Savage 10 308 only liked Sierra 165 grain bullets with 6 grove rifling.

[Process_engineer]

You found one in 6.5? I couldn't find anything but .308 when I was looking for mine.


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[Robinhood]

To add to Bunky's post, this design was a solution for bullets being pushed hard in fast twist rate rifles. If I remember correctly the problem was jacket failure and barrel temperature of a barrel with standard rifling. Allegedly it worked with load workup being a more forgiving as a windfall.

[bearcatrp]

Do a search online for 5R. You will see some folks say there is no difference to 4 rifling. Others say it helps. Works for me. Have both 10T in 308 and 6.5. So far so good.

[87tpita]

The 6.5 creedmor became an option about 2-3 months ago for the 10t

[TonyBen]

I shot this 45-shot string with a 5R barrelled M25 (M14 with permanent scope rail) that I built myself. I get an average of 35 FPS velocity gain versus 4-groove barrels of the same length. I tested this myself with three different rifles; one with 5R, the others without.

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1510_zpstt61cazm.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1510_zpstt61cazm.jpg.html)

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1313_zpssewqqvef.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1313_zpssewqqvef.jpg.html)

I'm sold on the 5R. If I'm not mistaken, 5R actually stands for 5-groove Russian. The Russians have been using a similar style for a long time but Boots Obermeyer tweaked the design and made it popular.

My particular 5R is actually a 5R/20˚ design. It has a 20˚ transition between land and groove. It was designed by Jon Wolfe and the barrel is made by Criterion.

Tony.

[Bill C]

There are few theories that barrel afficianados promote. 5R is one of them.

An odd number of grooves reduces friction and therefore fouling and bullet distortion because a land is always opposite a groove.

The one dimension that seems to affect accuracy the most in barrel construction is the angle of the leade

Academically speaking, a barrel as described above would be very ideal.

Bill

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[Bill C]

I shot this 45-shot string with a 5R barrelled M25 (M14 with permanent scope rail) that I built myself. I get an average of 35 FPS velocity gain versus 4-groove barrels of the same length. I tested this myself with three different rifles; one with 5R, the others without.

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1510_zpstt61cazm.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1510_zpstt61cazm.jpg.html)

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1313_zpssewqqvef.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1313_zpssewqqvef.jpg.html)

I'm sold on the 5R. If I'm not mistaken, 5R actually stands for 5-groove Russian. The Russians have been using a similar style for a long time but Boots Obermeyer tweaked the design and made it popular.

My particular 5R is actually a 5R/20˚ design. It has a 20˚ transition between land and groove. It was designed by Jon Wolfe and the barrel is made by Criterion.

Tony.
Very nice M1A. $$$

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[RustyShackle]

I shot this 45-shot string with a 5R barrelled M25 (M14 with permanent scope rail) that I built myself. I get an average of 35 FPS velocity gain versus 4-groove barrels of the same length. I tested this myself with three different rifles; one with 5R, the others without.

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1510_zpstt61cazm.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1510_zpstt61cazm.jpg.html)

http://i1205.photobucket.com/albums/bb423/tonyben3/IMG_1313_zpssewqqvef.jpg (http://s1205.photobucket.com/user/tonyben3/media/IMG_1313_zpssewqqvef.jpg.html)

I'm sold on the 5R. If I'm not mistaken, 5R actually stands for 5-groove Russian. The Russians have been using a similar style for a long time but Boots Obermeyer tweaked the design and made it popular.

My particular 5R is actually a 5R/20˚ design. It has a 20˚ transition between land and groove. It was designed by Jon Wolfe and the barrel is made by Criterion.

Tony.

:hail::thumb:

[Ryfulman]

5R rifling contains 5 lands and grooves and the lands have a sloping rather than straight wall.The rifling has 115 degree angle between the lands and grooves instead of the standard 90 degree angle. This supposedly reduces the friction and fouling. With my own experience i have found that my T/C Dimension 308 with 5r will group different weight bullets and charges much better. My Savage 10 308 only liked Sierra 165 grain bullets with 6 grove rifling.


I've got 2 dimensions. Right on all counts.

[Steve_Temple]

My 10t in 308 shoots great do far

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[TonyBen]

All this talk about 5R inspired me to order a 5R Rock creek barrel for my Savage overhaul.

Thanks for the comments on my M25. Can I say MOA all-day-long now?? :)

Tony.

[TonyBen]

Very nice M1A. $$$

Thanks! That is my baby right there! First rifle I ever built on my own. It took 18 months of collecting parts and tools. I used the rifle to film my M14 build video and I glass bedded it into a carbon/graphite/kevlar stock (not made any more) Parts alone, it would retail for about $4,500 with the scope. The hammer forged LRB receiver alone was $1,100. If I had someone build it, labor would have brought the final price to over $5k. The scope alone retails for $1,600 so minus the scope, the rifle alone would retail for about $3,400.

I put around 700 rounds through it last year and I bagged my first deer with it. The stock that it wears now is not the one in the picture. You can't get that kind of quality out of a Springfield Armory M1A.

When I started adding up how much I have invested in the three M14's that I own, spending $500 on a Savage 5R barrel and $600 on a McMillan stock doesn't seem unreasonable. I expect better accuracy out of my Savage when it's all done. Without the scope, my Savage will cost me about $1,000 less than my cheapest iron-sighted M14.

Tony.

[Bill C]

All this talk about 5R inspired me to order a 5R Rock creek barrel for my Savage overhaul.

Thanks for the comments on my M25. Can I say MOA all-day-long now?? :)

Tony.
Sorry to sidetrack but I have to ask: how ofte does the rifle need rebedded? Although a cool rifle, I could never justify the expense when a NM AR10 is a available.

Bill

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[TonyBen]

Sorry to sidetrack but I have to ask: how ofte does the rifle need rebedded? Although a cool rifle, I could never justify the expense when a NM AR10 is a available.

Bill

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That's a tough question to answer. Depending on the bedding material and if there are voids or air pockets, as well as what release agent was used, a bedding job can last between 3,000 to 5,000 rounds, depending on how often the action is removed from the stock and if there are burrs on the action that scrape the bedding when you remove it. LRB's and other high quality receivers have smooth surfaces and rounded edges on the receiver legs. SAI receivers have sharp corners and have aggressive tooling marks on the receiver legs.

And I agree on the cost, but for some guys, the old M14 has soul and is reminiscent of an era in American history that's long since passed. It's an old war-horse that can still get the job done in a variety of harsh environments. The M14 and M1 Garand receivers and bolts are the toughest receivers to make correctly and it reflects in the cost. But man, they just look great! If you have the ability to keep them shooting great; then that's a bonus!

Tony.