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Rebarreling a action to 6mm rem. - 85 to 100 grain bullets - is 1:9 the right twist rate 22 to 24 in barrel.
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Campfire Ranger
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Campfire Ranger
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I have a 6mm Creedmoor and a 6mm Remington, both have 7 ½" twist barrels. I shoot 85's through 105's.
There are 2 rules to success:
1. Never tell everything that you know.
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Campfire Regular
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I have a 9 twist but would definitely get an 8 twist now. The 9 twist won't stabilize 100 grain Sierra TGK nor 90 grain GMX, they need an 8 twist. If going higher than 100 grain you might want faster.
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Campfire Tracker
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Rebarreling a action to 6mm rem. - 85 to 100 grain bullets - is 1:9 the right twist rate 22 to 24 in barrel. No downside to faster twist and it opens many options. I’d go 8” twist, or maybe even 7.5”. John
If my people, who are called by my name, will humble themselves and pray and seek my face and turn from their wicked ways, then I will hear from heaven, and I will forgive their sin and will heal their land. 2 Chronicles 7:14
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Joined: Mar 2001
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Campfire Outfitter
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Campfire Outfitter
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No downside to faster twist and it opens many options. I’d go 8” twist, or maybe even 7.5”.
Same here. I'd go at least 8" twist, my 6mm Creedmoor has a 7" twist. You're really handicapping yourself with a 9" twist with all the good 6mm bullets available today. A 9" twist won't shoot the best of them, an 8" will.
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Joined: Mar 2006
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Campfire Outfitter
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Campfire Outfitter
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I'd go 7", and certainly no slower than 8".
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Joined: Jul 2007
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Campfire Ranger
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Campfire Ranger
Joined: Jul 2007
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As Hondo and others have stated, if 85gr is the bottom end of bullets you're entertaining, I'd go minimum 1:8 - the 1:7.5 and 1:7 opens up more options beyond 105 (should you choose to tinker).
My .243 and 2 6mm Creedmoors are all twisted 1:8. (bullets - 95 LRX,105 Berger & 103 ELD-X)
WWP53D
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Campfire 'Bwana
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Campfire 'Bwana
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I wouldn’t get anything less than 8 twist.
Camp is where you make it.
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Campfire Ranger
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Campfire Ranger
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I built one recently with a 7.5 twist. My 6 SLR has a 7 twist. Bullets keep getting longer...
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Joined: Apr 2011
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Campfire Ranger
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Campfire Ranger
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My little 6 CM is a 1-7.5 and I couldn't be happier. Everything has shot really well, and for a meat and taters sorta load I use the plain old 105 Hornady HPBT. It shot well with Nosler 55 BT's scorching out of it as well. Twist it up, you'll never wish for less twist. The opposite happens all the time with a lazy twist.
Semper Fi
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Joined: Aug 2009
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Campfire Oracle
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Campfire Oracle
Joined: Aug 2009
Posts: 96,040 |
The 1-9" twist will do just fine for your needs Captjohn.
Life Member SCI Life Member DSC Member New Mexico Shooting Sports Association
Take your responsibilities seriously, never yourself-Ken Howell Proper bullet placement + sufficient penetration = quick, clean kill. Finn Aagard
Ken
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Campfire Ranger
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Campfire Ranger
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elkhunternm, you should work for Remington.
WWP53D
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Campfire Ranger
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Campfire Ranger
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My little 6 CM is a 1-7.5 and I couldn't be happier. Everything has shot really well, and for a meat and taters sorta load I use the plain old 105 Hornady HPBT. It shot well with Nosler 55 BT's scorching out of it as well. Twist it up, you'll never wish for less twist. The opposite happens all the time with a lazy twist. Quoted for truth.
There are 2 rules to success:
1. Never tell everything that you know.
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Joined: Nov 2013
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Campfire Ranger
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Campfire Ranger
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No downside to 7” twist, unless you want to push thin-jacketed lightweights to 4000fps, in which case some of them might dissolve in flight.
OTOH, a 7” will let you shoot anything out there that I’m aware of, and you never know when the bug for something different might bite.
If you were buying an older gun with a 1-9, I’d say go for it. Since you’re paying for a new barrel, why limit yourself?
What fresh Hell is this?
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Campfire Tracker
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Campfire Tracker
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On this topic there is more to consider than just twist, my first 6mm Remington was AI'd. my gunsmith at the time talked me into a PacNor 1-8" twist 3 groove barrel.
I never even once had a Hornady 105gr A-Max make it to target, they would blow-up coming out of the barrel, the 105gr Berger VLD worked well for a few hundred rounds and they started doing the same thing. the rest of the barrel's life was with the 107gr SMK.
I have a friend with the same chambering, different reamer, different gunsmith using a 1-8"Krieger 4groove barrel that is starting to blow up bullets also. Makes me cringe a little on threads like this when people suggest to twist it as fast as you can and there is no down side. IMO with the case capacity of a 6mm Remington I would go with a 1-8" twist but make sure you get a 5 or 6 groove barrel.
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
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No down side to more twist
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Tracker
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Campfire Tracker
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Don’t limit yourself. Get the 1-7”.
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Campfire Tracker
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Campfire Tracker
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No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ??????????
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Campfire Outfitter
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Campfire Outfitter
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This isn't a 6mm. It is a 6x45mm with a 1 in 10 twist barrel. These are 90 gr. Speers moving at 2700 fps. They stabilize just fine. I think in your 6mm, a 1 in 9 twist will work fine.
Safe Shooting! Steve Redgwell www.303british.comGet your facts first, then you can distort them as you please. - Mark Twain Member - Professional Outdoor Media Association of Canada
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Joined: Apr 2011
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Campfire Ranger
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Campfire Ranger
Joined: Apr 2011
Posts: 15,297 |
No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ?????????? I’ve got a 7.5 and 8 twist. Why is JWP a pretender for what he said? At least for me, a Hunter using hunting bullets, what’s the downside from faster twist from 22 to 375?
Semper Fi
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Campfire Outfitter
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Campfire Outfitter
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I have a 6mm Rem. with a factory . No problem whatsoever shooting 85 to 100 grain Sierras. Heck it shoots 105's pretty decent too.
When a country is well governed, poverty and a mean condition are something to be ashamed of. When a country is ill governed, riches and honors are something to be ashamed of . Confucius
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Campfire Outfitter
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I prefer classic. Semper Fi I used to run with the hare. Now I'm envious of the tortoise and I do my own stunts but rarely intentionally
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2004
Posts: 42,738 |
I'd go 7", and certainly no slower than 8". I have a 6mm Rem on a Long action M 700.... 24 inch PacNor Stainless barrel, heavy magnum contour... one in 7 twist.... heaviest bullet it sees is the 115 gr Bergers.... 46 grs of RL 19, 3250 fps... the lightest bullet used... H414, 75 gr Hornady HP, 3675 Fps.... its the most accurate rifle I own.
"Minus the killings, Washington has one of the lowest crime rates in the Country" Marion Barry, Mayor of Wash DC
“Owning guns is not a right. If it were a right, it would be in the Constitution.” ~Alexandria Ocasio Cortez
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Campfire Ranger
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Campfire Ranger
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No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ?????????? I’ve got a 7.5 and 8 twist. Why is JWP a pretender for what he said? At least for me, a Hunter using hunting bullets, what’s the downside from faster twist from 22 to 375? I agree. Put two rifles in 6mm of some flavor in the classifieds and see which one sells first - the faster or slower twist. 😉 It appears we have some folks that’d do well to embrace a new century.
WWP53D
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Joined: Apr 2005
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Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 30,898 |
No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ?????????? WTF is your problem
I got banned on another web site for a debate that happened on this site. That's a first
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Campfire Tracker
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Campfire Tracker
Joined: Nov 2006
Posts: 3,652 |
No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ?????????? I’ve got a 7.5 and 8 twist. Why is JWP a pretender for what he said? At least for me, a Hunter using hunting bullets, what’s the downside from faster twist from 22 to 375? WOW, perhaps you did not read my first post and the concerns I raised for going too fast a twist, if you notice jack wagon was on to it instantly because he is a sexual intellect (aka:fhuqking know it all) that probably has never had a fast twist 6mm barrel......hence the question I posed. I know for sure he shot a 2 point with a 338 Lapua and 300gr SMK, but wanted knowledge of his 6mm 1-7" twist experience ???????????
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Joined: Nov 2013
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Campfire Ranger
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Campfire Ranger
Joined: Nov 2013
Posts: 28,751 |
Was looking at some load data today for the Barnes 95gr LRX. That one needs 1-8”.
Reason enough for me to go fast twist. Not the only bullet I shoot, but I want to be able to shoot it if possible.
What fresh Hell is this?
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Joined: Apr 2005
Posts: 30,898
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 30,898 |
No down side to more twist
Jack wagon pretender, how many fast twist 6mm barrel's do you own ?????????? I’ve got a 7.5 and 8 twist. Why is JWP a pretender for what he said? At least for me, a Hunter using hunting bullets, what’s the downside from faster twist from 22 to 375? WOW, perhaps you did not read my first post and the concerns I raised for going too fast a twist, if you notice jack wagon was on to it instantly because he is a sexual intellect (aka:fhuqking know it all) that probably has never had a fast twist 6mm barrel......hence the question I posed. I know for sure he shot a 2 point with a 338 Lapua and 300gr SMK, but wanted knowledge of his 6mm 1-7" twist experience ??????????? You just like being a di k head apparently. Your opinion or experience has zip to do with anyone else's. I shoot a lot of fast twist barrels dick head
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: May 2011
Posts: 15,874
Campfire Ranger
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Campfire Ranger
Joined: May 2011
Posts: 15,874 |
I have a 6mm Creedmoor in a 7" twist barrel and a 6mm Remington in a 7 ½" twist barrel. Why, you ask? Because I could get them twisted that fast.
There are 2 rules to success:
1. Never tell everything that you know.
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Joined: Sep 2013
Posts: 17,865
Campfire Ranger
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Campfire Ranger
Joined: Sep 2013
Posts: 17,865 |
My 6 creeds are 7 twist.
Because that’s how Barrett twisted them.
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Campfire Outfitter
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Campfire Outfitter
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I’ve sent a bunch of the 105 AM downrange at 3000+ fps using 7” 4G, 8” 4G, and 9.125” 6G barrels, and have never had one blow up. That applies to the 108 ELD and 115 DTAC from the 7” and 8” twist barrels, as well.
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Joined: Oct 2021
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Campfire Greenhorn
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Campfire Greenhorn
Joined: Oct 2021
Posts: 39 |
I have a 1986 700 varmint special factory 9 twist. My load is 105 amax reloader 26 48.3 at 3220. 2.870 coal. It shoots and stabilizes great at that speed. If you’re going to shoot 80 grain I would stay with 9 twist
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Campfire Outfitter
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Campfire Outfitter
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This might be of some use when considering twist rates. It is easy to want to try this bullet and that and oh yeah that.....The one thing this helped me do is pare down that list to those most likely to fit in with what has worked in my rifle. Enjoy Bullet Lengths
When a country is well governed, poverty and a mean condition are something to be ashamed of. When a country is ill governed, riches and honors are something to be ashamed of . Confucius
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Joined: Apr 2011
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Campfire Ranger
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Campfire Ranger
Joined: Apr 2011
Posts: 15,297 |
I’ve sent a bunch of the 105 AM downrange at 3000+ fps using 7” 4G, 8” 4G, and 9.125” 6G barrels, and have never had one blow up. That applies to the 108 ELD and 115 DTAC from the 7” and 8” twist barrels, as well. I always wonder when people have trouble with bullets "blowing up" if it isn't a rough throat that is scoring jackets that weakens them versus plain old RPM's.. My 6 creeds are 7 twist.
Because that’s how Barrett twisted them.
I bet those are sweet rifles.
Semper Fi
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Posts: 18,899
Campfire Ranger
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Campfire Ranger
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This might be of some use when considering twist rates. It is easy to want to try this bullet and that and oh yeah that.....The one thing this helped me do is pare down that list to those most likely to fit in with what has worked in my rifle. Enjoy Bullet LengthsThat's what some cannot wrap their heads around. Has to do w length more than weight.
The last time that bear ate a lawyer he had the runs for 33 days!
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Campfire Tracker
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Campfire Tracker
Joined: Jan 2008
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I have a 12 twist 6X47 Rem, 10 twist .243 Win, 7.5 twist Creed, 7 twist Creed, and a 7 twist 6X45. The last three get shot far more than the first two. Had a 7 twist .243 as well, but I had no use for a 15lb all up rifle but it did shoot!
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Joined: Apr 2020
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Campfire Regular
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Campfire Regular
Joined: Apr 2020
Posts: 1,250 |
7 twist does fine with 58gr
and 108's
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