Canted Land Barrels

juanvaldez

juanvaldez

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Location
Sudbury, Ontario
Just curious to hear the different opinions on the various forms of rifling available from different manufacturers

I am currently offering Broughton "5C ®" button barrels and am looking to stock some blanks. Just looking for some thoughts on the benefits of canted land barrels.


CALIBER TWIST*
224 7, 8, 9,10,12,13,14,16RF, 17RF canted land
243 7, 7.3, 8, 8.5, 9, 10, 12, 13.3, 14 canted land
257 9, 10 canted land
264 8, 9,12,14 canted land
270 10 canted land
284 8, 9, 10, 11 canted land
308 8, 9,10, 11, 12, 13, 17 canted land
338 9.3, 10 canted land
***Shooters are reporting more velocity, great accuracy, longer barrel life, reduced bolt pressure and ease in cleanability with the Broughton "5C ®" barrels.
 
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Had 1 5R barrel from Krieger, the barrel just wouldn't shoot, so I do not have faith in the canted lands personally.

Once bitten, twice shy.
 
According to Tim North The Broughton 5C® land profile is similar in concept to the 5R rifling pioneered by Boots Obermeyer, my understanding is that Boot Obermeyer was the one who carried out this process and taught a few other well known US makes. I believe the concept is Russian… According to Boots the bullet jackets will deform such that they remain closer to the R-form lands than they will to the sharp-edged lands present in conventional-style rifling. Possible explanation on why the barrel has produced faster barrels (antidotal evidence). The angled form of the lands also helps to reduce jacket failures in quick-twist barrels. That is a plus.. The reduction of jacket deformation may also account for easier cleaning

I have two 5r barrels and I believe they do provide greater speed over conventional rifling and clean up pretty well. I can’t say whether they are more accuracy, have longer barrel life, or reduce reduced bolt pressure. I know the ones I own are great barrels and shoot well

Broughton barrels have a solid reputation and I am sure people will want them.

P.S.
I believe John Whidden currently uses Broughton barrels
 
been there done that. Stuff has been tried and retried for close to 150yrs.

Bottom line is the smallest groups are still being shot by standard rifling.... and EVEN number of lands :)

'nough said.

Jerry
 
Well I think I will stock conventional rifled broughtons for now and see how the orders go for canted land.

Whats the cgn crystal ball say for top demand in bores/contours for next year? I spent some time talking with Tim North, the owner of Broughton, today. He is very well plugged into the precision shooting scene in the US. Tim's game is 1000 yard Benchrest so he knows all about shooting small groups at looong ranges. I plan on picking his brain as to what direction to go with blank stocks but am more interested in what Canadian shooters think we will see. I am offering a Black Friday sale to promote Broughton and get more of these bbls into Canadian shooters hands.

http://www.6mmbr.com/BroughtonProfile.html
 
.900 or greater at muzzle, straight taper, 5" straight at chamber. Can't go wrong with those for the F-class shooters anyway.

I personally prefer 1.25" from breech to muzzle. Just had really good luck with straight blank barrels, maybe less stress on the steel not turning it down? Just my preference.

6 (1:8), 6.5(1:8) and 7mm (1:8-1:9) are the most popular in the open class and obviously .223 (1:8, 1:9) and 1:11-1:12 .308 for the F-TR crowd.
 
CyaN1de said:
.900 or greater at muzzle, straight taper, 5" straight at chamber. Can't go wrong with those for the F-class shooters anyway.

I personally prefer 1.25" from breech to muzzle. Just had really good luck with straight blank barrels, maybe less stress on the steel not turning it down? Just my preference.

6 (1:8), 6.5(1:8) and 7mm (1:8-1:9) are the most popular in the open class and obviously .223 (1:8, 1:9) and 1:11-1:12 .308 for the F-TR crowd.
Click to expand...

Kept hearing last year how the 7's would dominate this year, are you seeing more? What chamberings? I've sold a pile more 6.5's and 6's , compared to 7's
 
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