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#6339778 - 06/18/16 12:58 PM twist?
colt45 Offline
THF Trophy Hunter

Registered: 08/19/06
Posts: 5642
Loc: bastrop county
why do mfg's make barrels with slower twist? example, I have a Savage heavy stock, heavy barrel w/1-9 shoots great. but trying to find a lighter weight walk around gun seems like they are 1-12 or 1-14
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#6339786 - 06/18/16 01:11 PM Re: twist? [Re: colt45]
okie44 Online   content
Tracker

Registered: 04/11/11
Posts: 652
Loc: Midland TX.
1-12" and 1-14" shoot the traditional Varmit weight bullets well. 45-50 gr. Hornady used to have a 50 gr SX or super explosive, if you ran them too fast in a fast twist barrel they would vaporize shortly after leaving the barrel.


Edited by okie44 (06/18/16 03:15 PM)
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#6339880 - 06/18/16 03:04 PM Re: twist? [Re: colt45]
dogdown23 Offline
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Registered: 02/15/14
Posts: 897
Loc: TX
Colt what caliber are we talking about?
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#6339883 - 06/18/16 03:11 PM Re: twist? [Re: colt45]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 18359
Loc: Wolfe City, TX
Originally Posted By: colt45
why do mfg's make barrels with slower twist?


Less aggressive the twist, the lighter the bullet the barrel will like, and the more muzzle velocity the rifle will make.

Velocity sells.

Is your 1:9" a .223 or .22-250?
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#6339901 - 06/18/16 03:49 PM Re: twist? [Re: FiremanJG]
colt45 Offline
THF Trophy Hunter

Registered: 08/19/06
Posts: 5642
Loc: bastrop county
Originally Posted By: FiremanJG
Originally Posted By: colt45
why do mfg's make barrels with slower twist?


Less aggressive the twist, the lighter the bullet the barrel will like, and the more muzzle velocity the rifle will make.

Velocity sells.

Is your 1:9" a .223 or .22-250?
its a 22-250 shooting a berger 70gr that will shoot a ragged hole all day long, perfect for p.d's


Edited by colt45 (06/18/16 03:51 PM)
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#6339903 - 06/18/16 03:50 PM Re: twist? [Re: dogdown23]
colt45 Offline
THF Trophy Hunter

Registered: 08/19/06
Posts: 5642
Loc: bastrop county
Originally Posted By: dogdown23
Colt what caliber are we talking about?
mainly 22-250, I like to shoot heavier bullets.
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#6340011 - 06/18/16 06:12 PM Re: twist? [Re: colt45]
FiremanJG Online   content
THF Celebrity

Registered: 12/16/08
Posts: 18359
Loc: Wolfe City, TX
Originally Posted By: colt45
Originally Posted By: FiremanJG
Originally Posted By: colt45
why do mfg's make barrels with slower twist?


Less aggressive the twist, the lighter the bullet the barrel will like, and the more muzzle velocity the rifle will make.

Velocity sells.

Is your 1:9" a .223 or .22-250?
its a 22-250 shooting a berger 70gr that will shoot a ragged hole all day long, perfect for p.d's


You've got a less common combination from a factory rifle, and one that I prefer. I had a 1:14 .22-250, and once that barrel was done, I specifically rebarreled for a 1:8, so that I could shoot 75 gr A-maxes. I like that combo much better than the 1:14 and 55 gr bullets, it does much better in the wind.

But if you like light bullets, screaming fast, that's your call.
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#6340383 - 06/19/16 08:09 AM Re: twist? [Re: FiremanJG]
colt45 Offline
THF Trophy Hunter

Registered: 08/19/06
Posts: 5642
Loc: bastrop county
Originally Posted By: FiremanJG
Originally Posted By: colt45
Originally Posted By: FiremanJG
Originally Posted By: colt45
why do mfg's make barrels with slower twist?


Less aggressive the twist, the lighter the bullet the barrel will like, and the more muzzle velocity the rifle will make.

Velocity sells.

Is your 1:9" a .223 or .22-250?
its a 22-250 shooting a berger 70gr that will shoot a ragged hole all day long, perfect for p.d's


You've got a less common combination from a factory rifle, and one that I prefer. I had a 1:14 .22-250, and once that barrel was done, I specifically rebarreled for a 1:8, so that I could shoot 75 gr A-maxes. I like that combo much better than the 1:14 and 55 gr bullets, it does much better in the wind.

But if you like light bullets, screaming fast, that's your call.
I don't get to do the p.d. hunts anymore so its just sitting in the gun room. few yrs ago savage offered a 22-250 w/1-9, syn. stock, should have bought one
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#6340591 - 06/19/16 01:00 PM Re: twist? [Re: colt45]
FiremanJG Online   content
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Registered: 12/16/08
Posts: 18359
Loc: Wolfe City, TX
What is it you're wanting to do? A light, shorter barreled .22-250, easy to carry?
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#6340896 - 06/19/16 06:50 PM Re: twist? [Re: colt45]
ChadTRG42 Online   happy
THF Trophy Hunter

Registered: 09/16/09
Posts: 9951
Loc: Lewisville, TX
When you increase twist, the velocity loss is only a few fps compared to a slower twist with the same bullet. It's a small enough amount of loss that it's not even a factor when determining the proper twist. I use to get barrels with just enough minimum twist to stabilize the bullet I want to shoot. Now, I will get barrels with enough twist to fully stabilize the bullet past the 1.5 stability factor numbers, to make sure you get 100% of the BC value.
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#6341056 - 06/19/16 09:11 PM Re: twist? [Re: ChadTRG42]
nyalubwe Online   content
Bird Dog

Registered: 12/10/15
Posts: 316
Loc: Montana
^^^^^^^^^^^^^^^^^^^^^^

THIS.


Plus a tighter twist gives you more versatility down the road if you decide to change bullet type or weight....




Or you just like fooling with different bullets/loads....like me... wink

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#6341276 - 06/20/16 05:33 AM Re: twist? [Re: colt45]
charlesb Offline
Pro Tracker

Registered: 04/07/10
Posts: 1478
Loc: West Texas mountains
I am going over from 1:12" twist 1:9" on my .223, just so that light loads with 55 grain bullets will stabilize.

The 1:12" twist stabilizes max loads with 55 grain bullets just fine, but not the reduced loads.

Besides, I am used to using 1:9" twist and occasionally using heavier match bullets.

The drawback to a faster twist has been mentioned, you have to keep the velocity down low with lighter bullets, or they will self-destruct in mid air, prior to reaching the target. - Perfect for the reduced loads that I favor.


Edited by charlesb (06/20/16 05:37 AM)
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#6341307 - 06/20/16 06:44 AM Re: twist? [Re: colt45]
cxjcherokec Offline
Veteran Tracker

Registered: 09/22/09
Posts: 2377
Loc: Azle, TX
The ruger American compact & compact all weather is 1:10, that's the only LW rifles I'm aware of that come close to what you're after. The other option is a custom

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#6341312 - 06/20/16 06:46 AM Re: twist? [Re: colt45]
cxjcherokec Offline
Veteran Tracker

Registered: 09/22/09
Posts: 2377
Loc: Azle, TX
A 1:10 should be good for 55-69's haven't done the charts but it's a good all around twist

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