rebarreling my rem700.... i want to shoot 168-175 grain bullets.... what twist should i go with???
my guess is 1-10...just wanna throw it out there
my guess is 1-10...just wanna throw it out there
twist on a 308
- Thread starter SuburbanHick
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Re: twist on a 308
the common 1:12 will work fine with many of the 175grn bullets...I've shot the 180vld Berger's as well without any issues in my 1:12 factory 700.
That said, as stated above, the 11.25 will probably work a better for some of the slightly longer bullets.
the common 1:12 will work fine with many of the 175grn bullets...I've shot the 180vld Berger's as well without any issues in my 1:12 factory 700.
That said, as stated above, the 11.25 will probably work a better for some of the slightly longer bullets.
Re: twist on a 308
i love the numbers beger has... however they are expensive.... im going to lean tward SMK and A max.....what would 1-10 twist be for?
i love the numbers beger has... however they are expensive.... im going to lean tward SMK and A max.....what would 1-10 twist be for?
Re: twist on a 308
Suburbanhick,
The 1x10's were originally the military's choice for the 30-40 Krag and the M1903 Springfield. Both used 220-230 grain round nosed bullets. With the 175s. a 1x12" will have you covered quite nicely, no problem at all.
Suburbanhick,
The 1x10's were originally the military's choice for the 30-40 Krag and the M1903 Springfield. Both used 220-230 grain round nosed bullets. With the 175s. a 1x12" will have you covered quite nicely, no problem at all.
Re: twist on a 308
The 1-10 would be for longer bullets, typically heavier.
A lot of people use the 1-10 with great success as do they with the 1-12. Just the 1-10 gives you a few more options...for example, I believe the 1:10 is the suggested twist of the SMK 175 (maybe it's the 178). (don't recall what they suggest in the 175 bullet- I shoot them in my 1:12 with no problems)
The 1-10 would be for longer bullets, typically heavier.
A lot of people use the 1-10 with great success as do they with the 1-12. Just the 1-10 gives you a few more options...for example, I believe the 1:10 is the suggested twist of the SMK 175 (maybe it's the 178). (don't recall what they suggest in the 175 bullet- I shoot them in my 1:12 with no problems)
Re: twist on a 308
The 1:12 will stabilize a 168-178 with no problem. If I was re-barreling a 308 I would go 1:11.25.
The 1:12 will stabilize a 168-178 with no problem. If I was re-barreling a 308 I would go 1:11.25.
Re: twist on a 308
so in other words a 1-11.27 rock creek in a m24 or amu would be a great choice?
so in other words a 1-11.27 rock creek in a m24 or amu would be a great choice?
Re: twist on a 308
I love these Threads where one person asks what to get and others tell him all sorts of things to buy...and many responses later we discover that he never said, and no one ever asked, for what purpose the thing was intended.
I love these Threads where one person asks what to get and others tell him all sorts of things to buy...and many responses later we discover that he never said, and no one ever asked, for what purpose the thing was intended.
Re: twist on a 308
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Graham</div><div class="ubbcode-body">I love these Threads where one person asks what to get and others tell him all sorts of things to buy...and many responses later we discover that he never said, and no one ever asked, for what purpose the thing was intended. </div></div>
LMFAO.... well said.... never the less i usually just take the majority of answeres and go with them.... how ever 11.27 it is
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Graham</div><div class="ubbcode-body">I love these Threads where one person asks what to get and others tell him all sorts of things to buy...and many responses later we discover that he never said, and no one ever asked, for what purpose the thing was intended. </div></div>
LMFAO.... well said.... never the less i usually just take the majority of answeres and go with them.... how ever 11.27 it is
Re: twist on a 308
I would do 1:11.25 twist. That is what was on my Crusader and it shot the same hole with 168s and 175s
I would do 1:11.25 twist. That is what was on my Crusader and it shot the same hole with 168s and 175s
Re: twist on a 308
I would look to what was available and in the contour I want, truth is unless you are doing something specialized with your 308 anything 12 or faster will work and even then depending on which 168 and 175 were talking you could get comfortably by with a 13 twist
this is a good source for twist, http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
lengths can be found under lengths on the left...
I would look to what was available and in the contour I want, truth is unless you are doing something specialized with your 308 anything 12 or faster will work and even then depending on which 168 and 175 were talking you could get comfortably by with a 13 twist
this is a good source for twist, http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
lengths can be found under lengths on the left...
Re: twist on a 308
my 1-10 doesn't like the 155's i think i a 1-11.25 or 1-12 will cover the 155-190 range of weights nicely
my 1-10 doesn't like the 155's i think i a 1-11.25 or 1-12 will cover the 155-190 range of weights nicely
Re: twist on a 308
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Niles Coyote</div><div class="ubbcode-body">I would look to what was available and in the contour I want, truth is unless you are doing something specialized with your 308 anything 12 or faster will work and even then depending on which 168 and 175 were talking you could get comfortably by with a 13 twist
this is a good source for twist, http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
lengths can be found under lengths on the left... </div></div>
alright... im on there... it shows a 1-10 is more stable.....but why would being onve 2.0 be bad?
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Niles Coyote</div><div class="ubbcode-body">I would look to what was available and in the contour I want, truth is unless you are doing something specialized with your 308 anything 12 or faster will work and even then depending on which 168 and 175 were talking you could get comfortably by with a 13 twist
this is a good source for twist, http://www.jbmballistics.com/cgi-bin/jbmstab-5.1.cgi
lengths can be found under lengths on the left... </div></div>
alright... im on there... it shows a 1-10 is more stable.....but why would being onve 2.0 be bad?
Re: twist on a 308
suburban, It's like Graham said. What do you want to do with your new barrel? Most competitors taylor their bbl. to whatever discipline they're shooting, ie; palma, f/tr, f/open or just having fun. Generally accepted twists are; 155gr 1-13, 168&175 is 1-12, 185 to 190 is 11.25. My 40xs with a 29in. Broughton is a 1-11.25. I experimented with Horn. 208. BIG waste of time and $ for bullets that long you need 1-10, at least. So, it boils down to what you want to do with your stick and how far you want to shoot it. IMHO
suburban, It's like Graham said. What do you want to do with your new barrel? Most competitors taylor their bbl. to whatever discipline they're shooting, ie; palma, f/tr, f/open or just having fun. Generally accepted twists are; 155gr 1-13, 168&175 is 1-12, 185 to 190 is 11.25. My 40xs with a 29in. Broughton is a 1-11.25. I experimented with Horn. 208. BIG waste of time and $ for bullets that long you need 1-10, at least. So, it boils down to what you want to do with your stick and how far you want to shoot it. IMHO
Re: twist on a 308
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: suburbanhick</div><div class="ubbcode-body">
alright... im on there... it shows a 1-10 is more stable.....but why would being onve 2.0 be bad?</div></div>
Bad, no just more than you need. FWIW 1.4 is the recommended floor. Higher just means your bullet is spinning faster than needed. Some believe this can cause its own set of issues for bullet flight... But with as many 1-10’s that are out there it can’t be that big of a deal or folks would be posting about issues.
<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: suburbanhick</div><div class="ubbcode-body">
alright... im on there... it shows a 1-10 is more stable.....but why would being onve 2.0 be bad?</div></div>
Bad, no just more than you need. FWIW 1.4 is the recommended floor. Higher just means your bullet is spinning faster than needed. Some believe this can cause its own set of issues for bullet flight... But with as many 1-10’s that are out there it can’t be that big of a deal or folks would be posting about issues.
Re: twist on a 308
im going to be using this as a all round precision rifle... it will see mostly range time at 300+ yards and will be hunted with at 300+ yards... the biggest i will hunt with it is texas deer out to 600... but will see alot of hogs also.... 165-178 should be more than enough for deer anything i want to do inside of 600
i love my SMK never used the A max nor berger....
im going to be using this as a all round precision rifle... it will see mostly range time at 300+ yards and will be hunted with at 300+ yards... the biggest i will hunt with it is texas deer out to 600... but will see alot of hogs also.... 165-178 should be more than enough for deer anything i want to do inside of 600
i love my SMK never used the A max nor berger....
Re: twist on a 308
I have several 12's (all factory) and a 11.27 custom all will shoot those bullets well from 0-1000y or as long as they stay supersonic. My favorite deer hunting bullet is the Berger VLD 168g which just so happens to have the same BC as a 175 SMK and works great with the FDAC slide rule should you be so inclined. This bullet seems to handle jump well in all my 308 rifles once you find the correct COAL.
I have several 12's (all factory) and a 11.27 custom all will shoot those bullets well from 0-1000y or as long as they stay supersonic. My favorite deer hunting bullet is the Berger VLD 168g which just so happens to have the same BC as a 175 SMK and works great with the FDAC slide rule should you be so inclined. This bullet seems to handle jump well in all my 308 rifles once you find the correct COAL.
Re: twist on a 308
1:10 or faster for heavy subsonics. That being said 1:10 throws any of the normal 308 bullets well.
1:10 or faster for heavy subsonics. That being said 1:10 throws any of the normal 308 bullets well.
Re: twist on a 308
1:11.25 preferred, but my stock rem pss with a 1:12 shot 175 SMK's with 44.5 grns of varget in clover leafs all day when I did my part.
1:11.25 preferred, but my stock rem pss with a 1:12 shot 175 SMK's with 44.5 grns of varget in clover leafs all day when I did my part.
Re: twist on a 308
1 in 11.25" for 168-175grs. You don't need a 1 in 10" twist unless you are shooting in short barrel or heavier subsonic rounds.
1 in 11.25" for 168-175grs. You don't need a 1 in 10" twist unless you are shooting in short barrel or heavier subsonic rounds.
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