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Need barrel for 6CM project...Please Help!!

Wyldeman

Wyldeman

Sergeant
Full Member
Minuteman
Feb 25, 2013
207
7
Southern Ohio
www.glockner.com
I just received an unexpected call from my smith. He said, i am waiting on barrels/parts to complete other builds, if you can send me your barrel & action I can have yours finished in 2-3 weeks.
My problem is, I have my new Bighorn & no barrel. I was expecting it to be summer before getting a call to send my parts to him. Now I am trying everything to find one.
Would like a(Kreiger, Broughton, Brux, Rock) 6mm, 8tw, conventional rifling, .237 bore to finish at 27-28" & as close to 5# as possible (med palma, modified std target, lt varmint, fluted or not fluted, etc). Am I Sh*t outa luck,
or can someone hook me up with new tube? does anyone know who i can contact to get one? I never had this problem before I found out how addicting this Sh*t is
 
Krieger had 6 instock 6mm 8 twist. LV contour 29" blanks. 4 groove. They were 236" tight bore though . I asked which one is better, .236or.237, i was told if using standard bullets(horn,Berger,Sierra) go .236". If using custom br bullets use the .237". Their are only 5 left or less, i got on my 243 tikka and it is a hammer out to 1k.
 
The real world difference between a .236 and .237 is so small you will never know the difference. I've shot both and have never seen a difference. Find your contour and get it built while you can.
 
The only reason for being so specific on the barrel/bore demensions is, the designer of the 6 Competition Match cartridge Joe Hendricks and his/my smith Dave Bruno, requested this combination. I have 4 other 6mm's that don't care what deminsions they are, but i guess i am just following the direction of the ones responsible for making this such a great round. I know this is probably the combination that has worked for them, and doesn't mean that you cant shoot a 5r or 5c barrel, it is just proven to be a great combination for
the ones who have shot & tested it the longest. I really appreciate everyones imput and value your wisdom & knowledge that i will some day have more of. the best part about this forum is there are many brilliant people that are at my fingertips to ask questions that i am otherwise unable to answer myself. For anyone not familliar with the 6CM it is a .243 parent case blown foreward to 31* using slow burning H1000 to send 115's 3100-3200fps & 105-107's up to 3300 & they are getting 3500-4000+ rounds out of it with accuracy that equals or exceeds 6XC. The key to its barrel life is the slower burning powder. I am still going to contact most of the above mentioned vendors to see what they have to offer, b/c it may be my only option for the time being. If i end up going that route i guess i can hopefully prove that there are other alternatives to the aformentioned optimum barrel specs. Keep the leads coming if anyone knows of anyone else that i can contact.
 
Wyldeman said:
The only reason for being so specific on the barrel/bore demensions is, the designer of the 6 Competition Match cartridge Joe Hendricks and his/my smith Dave Bruno, requested this combination. I have 4 other 6mm's loothat don't care what deminsions they are, but i guess i am just following the direction of the ones responsible for making this such a great round. I know this is probably the combination that has worked for them, and doesn't mean that you cant shoot a 5r or 5c barrel, it is just proven to be a great combination for the ones who have shot & tested it the longest. I really appreciate everyones imput and value your wisdom & knowledge that i will some day have more of. the best part about this forum is there are many brilliant people that are at my fingertips to ask questions that i am otherwise unable to answer myself. For anyone not familliar with the 6CM it is a .243 parent case blown foreward to 31* using slow burning H1000 to send 115's 3100-3200fps & 105-107's up to 3300 & they are getting 3500-4000+ rounds out of it with accuracy that equals or exceeds 6XC. The key to its barrel life is the slower burning powder. I am still going to contact most of the above mentioned vendors to see what they have to offer, b/c it may be my only option for the time being. If i end up going that route i guess i can hopefully prove that there are other alternatives to the aformentioned optimum barrel specs. Keep the leads coming if anyone knows of anyone else that i can contact.
Click to expand...

Sounds like the 243ai... Whats the difference?
 
the 243 AI is 40* shoulder, 6CM is 31* & body taper is slightly different, not much difference other than Joe Hendricks is getting 3500+ rounds out of his using H1000. I can use H1000 for this & my 2 7WSM's that i shoot most often. I have a 22-243 35* Rayhill Rocket & 243AI also they both shoot well using H4350, but i doubt that i will get anywhere close to 3500 rounds out of them combined and multiplied by 2.
 
Yes it does, Hoser has been thumping a 6CM(not Crredmoor) for a while now, hopefully he'll come along and give a report on his barrel life.
 
Sales for most vendors has been extremely high over the last few months, many products take some time to replenish. I have lots of Brux barrels coming in by the end of the month (hopefully), will have 6mm 8 twist 28" rem varmints coming in on that batch, they are SS and will have a .236 bore
 
I use to run .236 bore barrels when I was at Krieger and even my first couple here but I don't run them anymore. Anything wrong with the bullets, jacket thickness etc...and the tighter bore can cut thru the jacket and or cause stress points which can lead to jacket/bullet failure. I've experienced this first hand and it had nothing to do with the barrel being a .236 bore but it didn't help. I'm only running .237 bore barrels and the 5R rifling now. The odd number of grooves and the angle on the side of the lands they don't directly oppose one another like in a barrel with an even number of grooves. The odd groove barrel distorts/upsets the bullet jacket less hence it will help combat bullet failure.

I'm using 1-8 or 1-7.5 twist, .237 bore, 5R barrels on my long range guns in 6mm. My 6mm that just got put on my 6 Creedmoor build is in 1-8 twist as I'm not going to shoot bullets over 108gr.

There is no accuracy difference or barrel life difference with the number of grooves.

Check Grizzly, Butch's Reloading, Bugholes, Robert Whitley at AR-X, John Hoover at Accuracy One Shooting Supplies. Someone should have something that you can use.

Later, Frank
Bartlein Barrels
 
Frank, thanks for responding & clearing up the bore diameter delima (and suggesting more vendors to try). I also just got off the phone with Chad @ LRInc, we had a very very long & extensive conversation about this cartridge. I now know enough about the 6CM to drive me crazy until it is built. Thank you again, you have all been helpful.
 
Do you know if the 28" 6mm 8 twist barells for remington 700 come in? Thanks
Bugholes said:
Sales for most vendors has been extremely high over the last few months, many products take some time to replenish. I have lots of Brux barrels coming in by the end of the month (hopefully), will have 6mm 8 twist 28" rem varmints coming in on that batch, they are SS and will have a .236 bore
Click to expand...
 
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