Carbon barrel have a thicker stiffer profile but will weight less then the same contour steel barrel. Plus they do look cool too.
OH YEAH, Gotta have COOL!
Carbon barrel have a thicker stiffer profile but will weight less then the same contour steel barrel. Plus they do look cool too.
245: Frank Green of Bartlein Barrels, let's play it!
https://www.podbean.com/ei/pb-fxiba-d84f61
Vary nice!Thanks! 6.5 Creedmoor. It's a tack driver.View attachment 200611View attachment 200612
Checking it outLook at the defiance anTI action. Lighter than some titanium actions and very reasonably priced.
Not at all , any and all info is great!I've been wanting to start a discussion about barrel contour for two builds I am working on. More on an optimized design direction rather than which of the available contours to use. LMK if that diverges too much from your intents here and I can certainly start one up instead.
This is a good listen, I had already listened to it when it came out but good to review again. Frank Green is a knowledgeable guy. At about 4:10 they talk a little about one of the GAP contours that changes the shank length to match the chamber. Which leads to...
The direction I have been pursuing - as @HuntnPack mentioned - shorten shorten the shank to just longer than the shoulder of the cartridge. Then size the taper diameter ahead of the shank to the muzzle to optimize the weight you are after with a heavier taper maybe 0.012"/in or more if you like to the desired muzzle diameter to land the weight at your optimized target. There are calculators out there that get pretty close to actual but playing with the dimensions. I think the stiffness to weight can be changed a bit to make the most use of the weight that is there. Hopefully that makes sense.
Too much?
Dave
The direction I have been pursuing - as @HuntnPack mentioned - shorten shorten the shank to just longer than the shoulder of the cartridge. Then size the taper diameter ahead of the shank to the muzzle to optimize the weight you are after with a heavier taper maybe 0.012"/in or more if you like to the desired muzzle diameter to land the weight at your optimized target. There are calculators out there that get pretty close to actual but playing with the dimensions. I think the stiffness to weight can be changed a bit to make the most use of the weight that is there. Hopefully that makes sense.
Too much?
Dave
Carbon barrels?
Can someone explain to me the benefit of these. I just dont see it. I don't see any accuracy advantage to them. Is it the weight difference, if any that attracts shooters?
Lighter weight and the bling are the usual reasons - at least legitimate reasons. All sorts of claims are made but all the tests I've seen show similar stiffness for the same weight not size. Another advantage is a lighter barrel with a larger muzzle to seat a suppressor. All that said, now that Bartlein has them I would try one if I can make it work on an application. Their bore would be exceptional. It could be had with any twist to meet requirements perfectly, 5R,gain twist would all be possible. There could also be some resonance advantages and other gains. It will be interesting to see where it all goes.Carbon barrels?
Can someone explain to me the benefit of these. I just dont see it. I don't see any accuracy advantage to them. Is it the weight difference, if any that attracts shooters?
Ok, building 4 light weight hunters. What contour #3 , #2B ? Building 2 , 6.5 somethings (Sherman Short , PRC , WBY RPM , 264WinMag) and 2 , 7mm somethings (Sherman MAX , 280AI , LRM , 7MAG) Looking for insight for BARREL CONTOUR . Barrel length depending on cal , 22" to 26" max . So what are the suggestions / recommendations .
Thank you very much!
This will be helpfulThere is a spreadsheet here that will get you really close on weight and should be extremely accurate as far as comparing the weight differences between contours.
Barrel Weight Calculations For Contoured Barrels - Lilja
With: Excel File by Jean-Pierre PELLEGRYIn another article on our website we have the formulas and reasoning behind the calculations for determining the weights of straight taper and straight cylinder type barrels. In this article we have the formulas to be used in calculating the weights for...riflebarrels.com
Accuracy is number oneI will only use Hawk Hill barrels unless they change the way they operate. Fantastic accuracy, and great people to deal with. I am more than willing to give up a little weight to get what I have gotten from them.