Forums46
Topics537,949
Posts9,730,989
Members87,051
|
Most Online25,604 Feb 12th, 2024
|
|
|
Shorter Barrel = Faster speed
#7164159
05/08/18 09:18 PM
|
Joined: Mar 2018
Posts: 1,158
Scott W
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Mar 2018
Posts: 1,158 |
Saw this video today about the Tikka TAC A1 and at the 1:55 mark he talks about not getting the speed out of Tikka's 24" barrel so he put a 22" Bartlien barrel on it and gains 115 fps. How does the same ammo produce a faster speed out of a shorter barrel made by a different manufacturer? https://www.youtube.com/watch?v=shqciW9BgSo
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164160
05/08/18 09:19 PM
|
Joined: Jun 2011
Posts: 33,952
Buzzsaw
THF Celebrity
|
THF Celebrity
Joined: Jun 2011
Posts: 33,952 |
SPACE FOR RENT
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164161
05/08/18 09:21 PM
|
Joined: Mar 2010
Posts: 3,024
huck18
Veteran Tracker
|
Veteran Tracker
Joined: Mar 2010
Posts: 3,024 |
Saw this video today about the Tikka TAC A1 and at the 1:55 mark he talks about not getting the speed out of Tikka's 24" barrel so he put a 22" Bartlien barrel on it and gains 115 fps. How does the same ammo produce a faster speed out of a shorter barrel made by a different manufacturer? https://www.youtube.com/watch?v=shqciW9BgSo Every barrel is unique and produces difference results.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164165
05/08/18 09:27 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
I'm gonna make an educated guess.
Cut rifled verus button rifled.
What was the twist rate of each? A more agressive twist can reduce velocity.
Did each barrel have the same round count? At least, were both north of 250 rounds, which is where most 6.5mm settle in.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164168
05/08/18 09:31 PM
|
Joined: Oct 2004
Posts: 39,542
redchevy
THF Celebrity
|
THF Celebrity
Joined: Oct 2004
Posts: 39,542 |
Could also be due to the chamber.
It's hell eatin em live
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164169
05/08/18 09:31 PM
|
Joined: Mar 2009
Posts: 4,424
jeffbird
Extreme Tracker
|
Extreme Tracker
Joined: Mar 2009
Posts: 4,424 |
How does the same ammo produce a faster speed out of a shorter barrel made by a different manufacturer?
Tighter bore, which creates more pressure.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: jeffbird]
#7164200
05/08/18 09:58 PM
|
Joined: May 2009
Posts: 2,016
SingleShot85
Veteran Tracker
|
Veteran Tracker
Joined: May 2009
Posts: 2,016 |
How does the same ammo produce a faster speed out of a shorter barrel made by a different manufacturer?
Tighter bore, which creates more pressure. this^^^ is most likely the answer... just watched the video there are tons of difference between those barrels
Last edited by SingleShot85; 05/08/18 10:07 PM.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164210
05/08/18 10:03 PM
|
Joined: Jan 2011
Posts: 2,394
booradley
Veteran Tracker
|
Veteran Tracker
Joined: Jan 2011
Posts: 2,394 |
Custom vs mass produced barrel? Even though Tikka/Sako are about the best when it comes to factory barrels.
Don’t roll those bloodshot eyes at me.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: booradley]
#7164245
05/08/18 10:29 PM
|
Joined: May 2011
Posts: 28,025
skinnerback
THF Celebrity Chef
|
THF Celebrity Chef
Joined: May 2011
Posts: 28,025 |
Even though Tikka/Sako are about the best when it comes to factory barrels.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: jeffbird]
#7164251
05/08/18 10:35 PM
|
Joined: Jan 2017
Posts: 290
snarkscarbine
Bird Dog
|
Bird Dog
Joined: Jan 2017
Posts: 290 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Tighter bore, which creates more pressure.
Correct. Actually the Tikka CTR barrels are pretty widely known to be on the slow side. They shoot like lasers, but tend to give up some velocity.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: snarkscarbine]
#7164294
05/08/18 11:13 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Have you seen the tool chatter inside both before?
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164303
05/08/18 11:22 PM
|
Joined: Jan 2009
Posts: 19,249
Judd
#1 Creedmoor Fan
|
#1 Creedmoor Fan
Joined: Jan 2009
Posts: 19,249 |
I didn't watch the video (blocked here at work) generally speaking a shorter barrel will not yield faster speed. There are other factors...my first two guesses without knowing anything about the issue is 1 - tighter bore as mentioned above...item that popped in my head initially that wasn't mentioned is freebore will effect pressure/speed/etc.
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164324
05/08/18 11:34 PM
|
Joined: Jul 2010
Posts: 1,320
Crews
Pro Tracker
|
Pro Tracker
Joined: Jul 2010
Posts: 1,320 |
One of them is a Bartlein, and one of them is not. That’s how.
I have a feeling that researching the gain LH twist thing would make my brain hurt.
Last edited by Crews; 05/09/18 12:20 AM.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Crews]
#7164406
05/09/18 12:26 AM
|
Joined: Aug 2013
Posts: 2,030
spg
Veteran Tracker
|
Veteran Tracker
Joined: Aug 2013
Posts: 2,030 |
One of them is a Bartlein, and one of them is not. That’s how. ^^^Agree^^^ any factory barrel settled in or not can't compare to a Bartlein, two different animals. It's not worth breaking out the measuring tape, that's why I cringe when someone starts talking about brand X is just as accurate as any semi custom or fully custom rifle thats custom chambered by a reputable smith. The only way to get precision accuracy is to have a precision rifle built then develop a custom hand load.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164438
05/09/18 12:50 AM
|
Joined: Nov 2011
Posts: 3,636
DStroud
Extreme Tracker
|
Extreme Tracker
Joined: Nov 2011
Posts: 3,636 |
So if it was pressure then the 24 inch could have been loaded to match or exceed the speed of the shorter barrel.... only makes sense.
"Anyone taking up handloading necessarily plays with unknown factors and takes chances. But so does anyone who drives a car,goes to a cocktail party,eats in a restaurant,or gets married."
Jack O'Connor 1963
|
|
|
Re: Shorter Barrel = Faster speed
[Re: redchevy]
#7164480
05/09/18 01:27 AM
|
Joined: Nov 2007
Posts: 9,520
RiverRider
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Nov 2007
Posts: 9,520 |
Could also be due to the chamber. ^ | | | This for sure.
"Arguing with you always makes me thirsty." -Augustus McRae
|
|
|
Re: Shorter Barrel = Faster speed
[Re: J.G.]
#7164508
05/09/18 01:43 AM
|
Joined: Apr 2010
Posts: 6,219
dee
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Apr 2010
Posts: 6,219 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Have you seen the tool chatter inside both before? Idk about tool marks but there are some serious shooters/builders over in the benchrest world that swear Broughton button barrels are faster than most other custom barrels.
"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
|
|
|
Re: Shorter Barrel = Faster speed
[Re: jeffbird]
#7164516
05/09/18 01:47 AM
|
Joined: Jun 2015
Posts: 5,919
Jgraider
THF Trophy Hunter
|
THF Trophy Hunter
Joined: Jun 2015
Posts: 5,919 |
How does the same ammo produce a faster speed out of a shorter barrel made by a different manufacturer?
Tighter bore, which creates more pressure. Was going to be my thoughts as well.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164535
05/09/18 02:02 AM
|
Joined: Sep 2006
Posts: 32,494
kmon11
junior
|
junior
Joined: Sep 2006
Posts: 32,494 |
Lots of things come into play when talking rifle to rifle, barrel to barrel. Chamber size, throat length, barrel diameter and consistancy, type of rifling, smoothness of bore, land and groove style depth etc. That is not a complete list. We are quessing and so is anyone else that says they have the for sure truth of cases like this.
lf the saying "Liar, Liar your pants on fire" were true Mainstream news might be fun to watch
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7164605
05/09/18 03:20 AM
|
Joined: Mar 2018
Posts: 1,158
Scott W
OP
Pro Tracker
|
OP
Pro Tracker
Joined: Mar 2018
Posts: 1,158 |
Thanks for all the responses and education. I done learned something today!
Tighter chamber of a custom barrel makes sense as well as the smoothness of the bore. Didn't realize barrels would gain speed as they settle in.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: dee]
#7164611
05/09/18 03:22 AM
|
Joined: Aug 2013
Posts: 2,030
spg
Veteran Tracker
|
Veteran Tracker
Joined: Aug 2013
Posts: 2,030 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Have you seen the tool chatter inside both before? Idk about tool marks but there are some serious shooters/builders over in the benchrest world that swear Broughton button barrels are faster than most other custom barrels. ^^yep^^ Broughton's are known/said to be faster I don't have one but I know two smiths that have built and re-barreled alot of rifles and both say the same about Broughton barrels.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7165140
05/09/18 07:54 PM
|
Joined: Aug 2009
Posts: 3,848
Texan Til I Die
Extreme Tracker
|
Extreme Tracker
Joined: Aug 2009
Posts: 3,848 |
I know, I know! They oiled the barrel on the 22 incher! Yeah, that's it - less friction.
Silver spurs and gold tequila keep me hanging on. Pretty girls and old cantinas give me shelter from the storm.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: J.G.]
#7167014
05/11/18 04:49 PM
|
Joined: Jan 2017
Posts: 290
snarkscarbine
Bird Dog
|
Bird Dog
Joined: Jan 2017
Posts: 290 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Have you seen the tool chatter inside both before? Yep. If you do it right there is none. I've borescoped a pretty decent number of Hardys, and they're some of the most perfect bores you will ever see.
Last edited by snarkscarbine; 05/11/18 05:01 PM.
|
|
|
Re: Shorter Barrel = Faster speed
[Re: snarkscarbine]
#7167039
05/11/18 05:10 PM
|
Joined: Dec 2008
Posts: 41,171
J.G.
THF Celebrity
|
THF Celebrity
Joined: Dec 2008
Posts: 41,171 |
I'm gonna make an educated guess. Cut rifled verus button rifled.
Nope. Not a factor in and of itself. Have you seen the tool chatter inside both before? Yep. If you do it right there is none. I've borescoped a pretty decent number of Hardys, and they're some of the most perfect bores you will ever see. How bout a Remington, Tikka, or Savage? Worse I ever saw was on a friend's Thompson Encore. It could be seen with the naked eye.
800 Yard Steel Range Precision Rifle Instruction Memberships and Classes Available
|
|
|
Re: Shorter Barrel = Faster speed
[Re: Scott W]
#7167045
05/11/18 05:12 PM
|
Joined: Jan 2017
Posts: 290
snarkscarbine
Bird Dog
|
Bird Dog
Joined: Jan 2017
Posts: 290 |
How bout a Remington, Tikka, or Savage? Worse I ever saw was on a friend's Thompson Encore. It could be seen with the naked eye.
Yeah, I believe that. My point was more that Button vs Cut doesn't make that difference in and of itself. Doing it properly does.
|
|
|
Moderated by bigbob_ftw, CCBIRDDOGMAN, Chickenman, Derek, DeRico, Duck_Hunter, hetman, jeh7mmmag, JustWingem, kmon11, kry226, kwrhuntinglab, Payne, pertnear, rifleman, sig226fan (Rguns.com), Superduty, TreeBass, txcornhusker
|