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Joined: Apr 2011
Posts: 151,717 Likes: 14
Campfire Savant
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Campfire Savant
Joined: Apr 2011
Posts: 151,717 Likes: 14 |
That five inches makes a lot of difference!!
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Joined: Dec 2005
Posts: 2,934
Campfire Regular
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Campfire Regular
Joined: Dec 2005
Posts: 2,934 |
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Joined: Aug 2005
Posts: 11,352
Campfire Outfitter
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Campfire Outfitter
Joined: Aug 2005
Posts: 11,352 |
Chopped my 6.5-06 from 24.5 to 18". Cost me around 140 fps with 140 vld. Removed barrel section weighed exactly what a UL7 weighs and still getting 2800 fps. Just quieter. I'd cut to whatever length balances and rock on.
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Joined: Jan 2001
Posts: 7,988 Likes: 3
Campfire Outfitter
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Campfire Outfitter
Joined: Jan 2001
Posts: 7,988 Likes: 3 |
Great reference! Check out the lower tables on the page comparing to the 308 and 300 WM ballistics
Never underestimate your ability to overestimate your ability.
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Joined: Jan 2001
Posts: 29,881 Likes: 5
Campfire Ranger
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Campfire Ranger
Joined: Jan 2001
Posts: 29,881 Likes: 5 |
Likely optimum velocity is a product of bullet, powder, load, and barrel length. A single chop trial is not going to answer every question. If one starts long, he can always keep chopping. Few options if one begins on the short side.
Last edited by 1minute; 07/19/18.
1Minute
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Joined: Oct 2006
Posts: 3,575
Campfire Tracker
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Campfire Tracker
Joined: Oct 2006
Posts: 3,575 |
As portability’s out the window, just crown whatever you’ve got 👌😎
I do not entertain hypotheticals. The world itself is vexing enough. -- Col. Stonehill
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Joined: Nov 2004
Posts: 4,546
Campfire Tracker
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Campfire Tracker
Joined: Nov 2004
Posts: 4,546 |
Have a 6mmBR has a 16.5 inch barrel with a 10 inch suppressor at the end. Compared to my 24 inch 6mm BR there is a 220 FPS loss with the 16.5 inch barrel and suppressor. However, have yet to see a coyote or p-dog step out of the way of a 87 grain Vmax.
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Joined: Oct 2008
Posts: 2,621
Campfire Regular
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Campfire Regular
Joined: Oct 2008
Posts: 2,621 |
I cut my 6x47 Lapua down from 28” to 22” and lost 80fps... well worth it to me
Public landowner...
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Joined: Apr 2007
Posts: 2,447
Campfire Regular
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Campfire Regular
Joined: Apr 2007
Posts: 2,447 |
Just got my 6.5 Creed CTR put back together after having the barrel cut down to 18.
Boy this is nice to handle.
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Joined: Feb 2002
Posts: 7,199
Campfire Tracker
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Campfire Tracker
Joined: Feb 2002
Posts: 7,199 |
Loud as hell also if you don't have a can on the muzzle. I have a 19.5" 7x57 Fabrique Nationale Mauser carbine, handy, but ungodly loud! No doubt that these short barrels damage your hearing...concussion. I do not shoot my carbine much anymore for this reason. [/URL]
Last edited by keith; 07/29/18.
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Joined: Apr 2008
Posts: 3,831
Campfire Tracker
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Campfire Tracker
Joined: Apr 2008
Posts: 3,831 |
Loud as hell also if you don't have a can on the muzzle. I have a 19.5" 7x57 Fabrique Nationale Mauser carbine, handy, but ungodly loud! No doubt that these short barrels damage your hearing...concussion. I do not shoot my carbine much anymore for this reason. [/URL] You do know that long barrels also damage your hearing??
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Joined: Nov 2005
Posts: 22,736
Campfire Ranger
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Campfire Ranger
Joined: Nov 2005
Posts: 22,736 |
Well if it helps, I have two Tikka's, one 22" and the other, 24". The last range session compared R-16 with the 130gr. Acc. and 143gr. ELD-X. Chrony on ten each yields a 40-50 fps gain with the extra 2 inches.
My home is the "sanctuary residence" for my firearms.
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Joined: Jul 2015
Posts: 30
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jul 2015
Posts: 30 |
Well if it helps, I have two Tikka's, one 22" and the other, 24". The last range session compared R-16 with the 130gr. Acc. and 143gr. ELD-X. Chrony on ten each yields a 40-50 fps gain with the extra 2 inches. What are your velocities?
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Joined: Dec 2002
Posts: 13,104
Campfire Outfitter
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Campfire Outfitter
Joined: Dec 2002
Posts: 13,104 |
I have concluded that the extra inches are worth it to me; decreased muzzle blast and increased velocities. I don't wear hearing protection when I hunt. I don't like barrels under 24" unless they are mild cartridges. A leave all my 6.5-284s at 25". Did the same on my 6x47L. Much easier on the hearing and face when hunting.
I don't have to clear buildings anymore so no need for an SBR.
NRA Benefactor Member
Those who live by the sword get shot by those who don't.
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Joined: Jul 2015
Posts: 30
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jul 2015
Posts: 30 |
I tried to purchase the 24' 6.5 Creed but Baretta in its infinite wisdom has not imported them to Australia - Strangely they did bring in a 20inch version - so I'm wondering if anyone has data for the 6.5 Creed with 140/147's and RL16 or RL26 or H4350? Thanks, DG
Last edited by DG1969; 09/13/18.
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Joined: Apr 2008
Posts: 3,831
Campfire Tracker
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Campfire Tracker
Joined: Apr 2008
Posts: 3,831 |
I tried to purchase the 24' 6.5 Creed but Baretta in its infinite wisdom has not imported them to Australia - Strangely they did bring in a 20inch version - so I'm wondering if anyone has data for the 6.5 Creed with 140/147's and RL16 or RL26 or H4350? Thanks, DG I have loaded 143s and 147s in 6.5 CMs with RL-26 in 18", 20", and 24" barrels. What would you like to know exactly?
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Joined: Jul 2015
Posts: 30
Campfire Greenhorn
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Campfire Greenhorn
Joined: Jul 2015
Posts: 30 |
Excellent, thanks. My tikka barrel is 20', I'm sitting on a metric shi*#load of H4350, 140gr & 147gr Eldm 's. I'd love to know what my velocity potential is with the 20' tube. I'd prefer not to have to use a different powder but I like what I'm seeing in RL16/26. I'm in Australia and experience huge temperature variations at my ao. If I can net 2700fps with the 140's ill call it good.
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Joined: Aug 2005
Posts: 15,648
Campfire Ranger
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Campfire Ranger
Joined: Aug 2005
Posts: 15,648 |
Regardless of ballistics, I have confirmed my optimum length for rifle barrels are 20-22". With quality scopes, MV doesn't mean much these days with the right bullet....
After 18", noise doesn't really change all that much IME...
- Greg
Success is found at the intersection of planning, hard work, and stubbornness.
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Joined: Nov 2011
Posts: 30,983
Campfire 'Bwana
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Campfire 'Bwana
Joined: Nov 2011
Posts: 30,983 |
23"...then go kill stuff!! 28" kills 'em deader....... Providing you know what you're doing at the loading bench, like Aalf, this is true. Personally, I'd go with a 26" barrel. It about the longest you can go and keep a reasonable balance with an appropriate weight barrel.
You didn't use logic or reason to get into this opinion, I cannot use logic or reason to get you out of it.
You cannot over estimate the unimportance of nearly everything. John Maxwell
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Joined: May 2009
Posts: 591
Campfire Regular
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Campfire Regular
Joined: May 2009
Posts: 591 |
check Hatcher's Notebook. Even with old time powders, the .30-06 gained velocity all the way to the 29" max tested. Melvin is building a .260 Rem for me with 26" barrel.
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