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twist?
#6339778
06/18/16 05:58 PM
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Joined: Aug 2006
Posts: 11,657
colt45-90
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Texas colt45
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Texas colt45
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Posts: 11,657 |
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
hold on Newt, we got a runaway
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Re: twist?
[Re: colt45-90]
#6339786
06/18/16 06:11 PM
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Joined: Apr 2011
Posts: 988
okie44
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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.
Last edited by okie44; 06/18/16 08:15 PM.
�The trouble ain't that there is too many fools, but that the lightning ain't distributed right.� Mark Twain
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Re: twist?
[Re: colt45-90]
#6339880
06/18/16 08:04 PM
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Joined: Feb 2014
Posts: 968
dogdown23
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Colt what caliber are we talking about?
Dogdown
The only thing that'll stop a bad man with a gun, is a good man with a gun.
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Re: twist?
[Re: colt45-90]
#6339883
06/18/16 08:11 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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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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Re: twist?
[Re: J.G.]
#6339901
06/18/16 08:49 PM
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Joined: Aug 2006
Posts: 11,657
colt45-90
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Texas colt45
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Texas colt45
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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
Last edited by colt45; 06/18/16 08:51 PM.
hold on Newt, we got a runaway
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Re: twist?
[Re: dogdown23]
#6339903
06/18/16 08:50 PM
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Joined: Aug 2006
Posts: 11,657
colt45-90
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Texas colt45
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Texas colt45
Joined: Aug 2006
Posts: 11,657 |
Colt what caliber are we talking about? mainly 22-250, I like to shoot heavier bullets.
hold on Newt, we got a runaway
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Re: twist?
[Re: colt45-90]
#6340011
06/18/16 11:12 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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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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Re: twist?
[Re: J.G.]
#6340383
06/19/16 01:09 PM
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Joined: Aug 2006
Posts: 11,657
colt45-90
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Texas colt45
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Texas colt45
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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
hold on Newt, we got a runaway
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Re: twist?
[Re: colt45-90]
#6340591
06/19/16 06:00 PM
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Joined: Dec 2008
Posts: 41,171
J.G.
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What is it you're wanting to do? A light, shorter barreled .22-250, easy to carry?
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Re: twist?
[Re: colt45-90]
#6340896
06/19/16 11:50 PM
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Joined: Sep 2009
Posts: 18,946
ChadTRG42
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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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Re: twist?
[Re: ChadTRG42]
#6341056
06/20/16 02:11 AM
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Joined: Dec 2015
Posts: 569
nyalubwe
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^^^^^^^^^^^^^^^^^^^^^^ 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...
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Re: twist?
[Re: colt45-90]
#6341276
06/20/16 10:33 AM
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Joined: Apr 2010
Posts: 1,499
charlesb
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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.
Last edited by charlesb; 06/20/16 10:37 AM.
Kind regards, charlesb
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Re: twist?
[Re: colt45-90]
#6341307
06/20/16 11:44 AM
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Joined: Sep 2009
Posts: 2,959
cxjcherokec
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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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Re: twist?
[Re: colt45-90]
#6341312
06/20/16 11:46 AM
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Joined: Sep 2009
Posts: 2,959
cxjcherokec
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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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