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Joined: Dec 2007
Posts: 16,167 Likes: 9
Campfire Ranger
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Campfire Ranger
Joined: Dec 2007
Posts: 16,167 Likes: 9 |
Until the OP says what bullets he wants to shoot, it's all speculation on "what if's".
Barnes doesn't put a twist limit on the 165 TTSX, but puts an 11" on the 168's because it's a longer bullet designed to not be mag restricted like the 165's are, and 190 Bergers weren't part of his question.
And no on Litz's writing.
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Joined: Aug 2011
Posts: 3,893
Campfire Tracker
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Campfire Tracker
Joined: Aug 2011
Posts: 3,893 |
I've never had to read anyone,to see WTF one of my barrels would and would not do,either.(grin)
I've 308's in 10,11.25/27 and 12".
Hell...I even shot one once,in the cold to boot.
I reckon you've shot about 100x more good barrels than poor MD has ever Pretended to Imagine and that's my being charitable.
VERY [bleep] charitable.
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Joined: Feb 2003
Posts: 18,854
Campfire Ranger
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Campfire Ranger
Joined: Feb 2003
Posts: 18,854 |
I would never go less than 1 in 10 twist in 30 caliber.
Got a 8" on a 300 Blackout and shoot 110 TTSX supersonic and 220 BTHP subsonic in it. But velocity is not on par with a .308.
Last edited by 257heaven; 07/29/14.
Sent from my Dingleberry Handheld Wireless
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Joined: Mar 2004
Posts: 7,128
Campfire Tracker
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OP
Campfire Tracker
Joined: Mar 2004
Posts: 7,128 |
Until the OP says what bullets he wants to shoot, it's all speculation on "what if's".
aalf, My first preference is the Nosler 168 BT, after that it wouldn't matter that much between the 165 BT or 168 TTSX. There was some mention earlier about cold conditions. Sometimes I do hunt in Alberta, Saskatchewan, Kansas and northern Missouri. It can be cold in late November in some years. Thanks,
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Joined: Sep 2011
Posts: 2,038
Campfire Regular
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Campfire Regular
Joined: Sep 2011
Posts: 2,038 |
I used Berger's twist calculator...http://www.bergerbullets.com/litz/TwistRuleAlt.php...and determined that for the 168 Nosler Ballistic Tip, achieving a 1.5 stability factor at 0 degrees and 0 feet altitude (worst case scenario for stability), assuming 2900 fps, requires an 11 twist.
With that said, I have a synthetic stocked, go anywhere, hunt anything 30-06. It has a 10 twist barrel. If I were going to hunt low elevation in cold weather I would want a 10 twist.
I have another 30-06 on the way. It might be done next year. I'm hoping for a beautiful wood stock, nice bluing, etc. It has an 11 twist barrel, but I don't know that I would reach for it first when the weather is miserable.
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Joined: Sep 2011
Posts: 2,038
Campfire Regular
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Campfire Regular
Joined: Sep 2011
Posts: 2,038 |
I would add it's a damn miracle that any animal has ever died after being shot by a 25 caliber rifle. According to the twist calculators 25 cal bullets are basically tumbling by the time they strike a target.
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Joined: Feb 2007
Posts: 16,512
Campfire Ranger
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Campfire Ranger
Joined: Feb 2007
Posts: 16,512 |
Never known a 10 twist to be a bad thing in a 30, 12 if shooting score, but off the bench you may never know the diff.
Let's see impact test on ballistic media to see what bullets hold nose forward, that is what matters more to me, a hunter, not a comp shooter. I want a bullet to stay in a straight line regardless of what it hits en route to and thru vitals.
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Joined: Mar 2004
Posts: 7,128
Campfire Tracker
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OP
Campfire Tracker
Joined: Mar 2004
Posts: 7,128 |
Barnes doesn't put a twist limit on the 165 TTSX, but puts an 11" on the 168's because it's a longer bullet designed to not be mag restricted like the 165's are
I didn't think about magazine restrictions, probably 165's would be better for me. I don't think of myself as a long range hunter, but I do practice on targets out to 400 yards. The most likely place a really long shot on deer could occur where I've hunted would be in northern Alberta up in a tower blind looking down right of way cuts through the timber. You could theoretically get a shot as far as 600 or 700 yards, after 6 trips to Canada and 4 deer all of my shots have been less than 250 yards. This has been an interesting thread with a lot of knowledgeable people and I'd like to ask a dumb question about cold weather hunting from a southern guy. This past season in Sask. I was in an enclosed box blind with temps around -25f. I noticed my rifle barrel propped in the corner had accumulated a rather thick layer of frost on the barrel. Probably moisture from my breathing, I didn't think of checking it then to see, but if this frost was also inside the barrel would it effect accuracy or would pressure in front of the bullet blow it out of the way?
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Joined: Apr 2005
Posts: 30,970 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 30,970 Likes: 5 |
Never known a 10 twist to be a bad thing in a 30, 12 if shooting score, but off the bench you may never know the diff.
Let's see impact test on ballistic media to see what bullets hold nose forward, that is what matters more to me, a hunter, not a comp shooter. I want a bullet to stay in a straight line regardless of what it hits en route to and thru vitals. Fast twist barrels aids in straight line penetration.
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: Oct 2002
Posts: 96,121 Likes: 1
Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
Posts: 96,121 Likes: 1 |
Do a 1-12" and you will leave a BUNCH on the table.
"Dear Lord, save me from Your followers"
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Joined: Oct 2002
Posts: 96,121 Likes: 1
Campfire Oracle
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Campfire Oracle
Joined: Oct 2002
Posts: 96,121 Likes: 1 |
I would never go less than 1 in 10 twist in 30 caliber.
Got a 8" on a 300 Blackout and shoot 110 TTSX supersonic and 220 BTHP subsonic in it. But velocity is not on par with a .308. 1-8" ain't LESS twist than a 1-10".
"Dear Lord, save me from Your followers"
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Joined: Feb 2002
Posts: 7,202 Likes: 1
Campfire Tracker
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Campfire Tracker
Joined: Feb 2002
Posts: 7,202 Likes: 1 |
Frost on the inside of the barrel does leade to rust in the inside of the barrel. I have bought a lot of used guns for the actions only and it is amazing how many of them have surface rust in the first inch of the barrel(walking with the muzzle up in the rain).
When the hunter comes home from his hunt, he brings his gun in the home where it is warm, rust develops very fast especially if he puts it near the fire place.
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Joined: Apr 2005
Posts: 30,970 Likes: 5
Campfire 'Bwana
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Campfire 'Bwana
Joined: Apr 2005
Posts: 30,970 Likes: 5 |
I would never go less than 1 in 10 twist in 30 caliber.
Got a 8" on a 300 Blackout and shoot 110 TTSX supersonic and 220 BTHP subsonic in it. But velocity is not on par with a .308. 1-8" ain't LESS twist than a 1-10". Exactly
I got banned on another web site for a debate that happened on this site. That's a first
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Joined: Apr 2009
Posts: 8,644
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2009
Posts: 8,644 |
Its a proven fact that your nuts will dry up and fall off if you go with anything other than 10 twist...
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Joined: Feb 2003
Posts: 18,854
Campfire Ranger
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Campfire Ranger
Joined: Feb 2003
Posts: 18,854 |
Its a proven fact that your nuts will dry up and fall off if you go with anything other than 10 twist... What if you're a chick? I mean.....I ain't, but we don't need to discriminate! (I'm a f'in poet!!)
Sent from my Dingleberry Handheld Wireless
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Joined: Apr 2009
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Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2009
Posts: 8,644 |
Yes�... "If my aunt had balls, she'd be my uncle"?!?
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Joined: Apr 2009
Posts: 8,644
Campfire Outfitter
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Campfire Outfitter
Joined: Apr 2009
Posts: 8,644 |
This squirrels rifle was 11.25 twist, so bad juju can happen.
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