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Mar 25th, 2012
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Fast Twist Barrels #7125140
03/27/18 11:50 PM
03/27/18 11:50 PM
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Pittsburg, Texas
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DLALLDER Online content OP
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I have 2 fast twist 223's, a 7 and an 8. Both are bolt guns. What kind of success have you had with light bullets, say 50 or 55 gr? Only loads I have worked up has been 69's up to 80's. I have been told that the fast twist barrels don't do well with the lighter bullets, anything to that? Thanks Daniel

Last edited by DLALLDER; 03/27/18 11:51 PM.






Re: Fast Twist Barrels [Re: DLALLDER] #7125162
03/28/18 12:07 AM
03/28/18 12:07 AM
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No not really.... good bullets should work just fine.


"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: Fast Twist Barrels [Re: DLALLDER] #7125192
03/28/18 12:25 AM
03/28/18 12:25 AM
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It depends on how fast you push the lighter bullets. A 223, I would think you should be fine. But I have seen some rifles spin apart a bullet in flight with a fast twist and light bullets, like a 35 or 40 grain varmint style bullet. Mainly in a 22-250 or faster round. An 8" twist is not "that" fast.



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Re: Fast Twist Barrels [Re: DLALLDER] #7125206
03/28/18 12:36 AM
03/28/18 12:36 AM
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Wolfe City, TX
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The 7 twist and 55 gr isn't "that" bad unless pushed really fast, as Chad said. But give me a 7 twist, and I'm promptly buying 80 to 90 gr bullets grin



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Re: Fast Twist Barrels [Re: DLALLDER] #7125214
03/28/18 12:46 AM
03/28/18 12:46 AM
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Ok, define "that bad" and "pushed really fast". Thanks







Re: Fast Twist Barrels [Re: DLALLDER] #7125266
03/28/18 01:49 AM
03/28/18 01:49 AM
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Originally Posted By: DLALLDER
Ok, define "that bad" and "pushed really fast". Thanks


1:7, 50 gr bullet, over 3200 fps MV is my best estimation. This comes down to, again, selecting bullet weight (length) best appropriate for twist rate. 1:7, over 75 gr bullets IMO.

1:7 is one of the few twist rates that will stabilize a 90 gr Berger.



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Re: Fast Twist Barrels [Re: DLALLDER] #7125301
03/28/18 02:35 AM
03/28/18 02:35 AM
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I have been loading 77 and a few 80's Noslers. I wanted to try some 55 grainers mainly just to see if they would shoot.







Re: Fast Twist Barrels [Re: DLALLDER] #7125349
03/28/18 03:49 AM
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Try some 52-55 gr Berger or Matchkings you should get good results. I have shot 40 gr Sierra from 1/8 twist and they work fine too.


"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."

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Re: Fast Twist Barrels [Re: DLALLDER] #7125478
03/28/18 12:01 PM
03/28/18 12:01 PM
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I've heard of folks using 55 grainers out of a 1:8 with no issues. My Tikka 1:8 twist shot them just fine. I think Chad is right that you can start having issues when you get down in the 40-grain range and trying to get a lot of speed.

I have no knowledge about the 1:7 twist. For the most part, it seems that nobody buys that barrel to shoot light bullets.

Re: Fast Twist Barrels [Re: DLALLDER] #7125552
03/28/18 12:58 PM
03/28/18 12:58 PM
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Have run 52 gr from a 27 inch 1:8 in 22-243 with good accuracy. But like CHad said you have to watch for the bullet and it's designed speed profile. Speer TNT there was and probably still is listed upper velocity limits for then or they will come apart in flight, and do so quicker from a fast twist barrel.

Re: Fast Twist Barrels [Re: DLALLDER] #7125588
03/28/18 01:33 PM
03/28/18 01:33 PM
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7 twist broughton 223ai



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Re: Fast Twist Barrels [Re: dee] #7125669
03/28/18 02:43 PM
03/28/18 02:43 PM
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^^Well, my assumption was wrong.

Good load, dee.



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Re: Fast Twist Barrels [Re: DLALLDER] #7125676
03/28/18 02:46 PM
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It typically only gets fed 80gr berger but it was nice to know I could run light if I really wanted to.


"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt
Re: Fast Twist Barrels [Re: DLALLDER] #7125826
03/28/18 04:31 PM
03/28/18 04:31 PM
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Sometimes these things called rifles can surprise you. I ran some 52gr Sierra at 3800 from a 22-243 1:8 27 inch Hart barrel that shot right at 1/2 MOA.

Same rifle gets mostly 75gr Sirocco for hunting and came with a load that is pretty slow but accurate for 80gr Noslers. Right at what I consider Max loads I can get good groups out to 200 yards for sure with 90gr Bergers, Berger tech told me they should work but would probably have to be pushed hard to stabilize.

Speer TNT bullets are one that cannot be pushed too hard or they will come apart. Some 15gr 17 caliber Berger bullets for rounds like the 17 Hornet will come apart for sure when shot from a 17 Remington and leave a little blueish trail for a little way

Re: Fast Twist Barrels [Re: DLALLDER] #7126231
03/28/18 08:58 PM
03/28/18 08:58 PM
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I've got a 38/357 handgun with a 1:10 twist barrel.


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Re: Fast Twist Barrels [Re: DLALLDER] #7126320
03/28/18 10:35 PM
03/28/18 10:35 PM
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Originally Posted By: DLALLDER
I have 2 fast twist 223's, a 7 and an 8. Both are bolt guns. What kind of success have you had with light bullets, say 50 or 55 gr? Only loads I have worked up has been 69's up to 80's. I have been told that the fast twist barrels don't do well with the lighter bullets, anything to that? Thanks Daniel



Tight twist barrels will stabilize light bullets, no problemo! Ive got a couple .223AIs, a .223 and a .222 with tight twists...they all love 55 grain bullets! You may even recognize the McFlame..... wink






That was a 55 grain bullet...... laugh

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