Long Range Hunting Online Magazine


Go Back   Long Range Hunting Online Magazine > Rifles, Reloading, Optics, Equipment > Rifles, Bullets, Barrels & Ballistics

Rifles, Bullets, Barrels & Ballistics Applied Ballistics


Reply

Twist for 7mm? 175smk and 160AB

 
LinkBack Thread Tools Display Modes
  #1  
Old 03-14-2006, 03:12 PM
Platinum Member
 
Join Date: Jan 2005
Location: OK
Posts: 2,145
Twist for 7mm? 175smk and 160AB

I'm ordering barrels for some projects, and was thinking a 1-9 twist should cover both of these bullets?

Or is a 1-9 marginal with the 175 smk?

Will be a 280AI 3 groove Pac-Nor #5.

Thanks for any input, Jim.
Reply With Quote
  #2  
Old 03-14-2006, 03:26 PM
Silver Member
 
Join Date: Sep 2003
Posts: 347
Re: Twist for 7mm? 175smk and 160AB

9 twist will work fine. Have had 4 7mm barrels with 9 twist and they all shot the 180 grain Bergers just fine. The 7mm sierra match king won't have any problems. My first pac-nor barrel i have recieved is a 3 groove super match and all I have to say is no copper fouling and great accuracy. They are a good barrel for the money.
Reply With Quote
  #3  
Old 03-14-2006, 05:37 PM
Platinum Member
 
Join Date: Feb 2004
Location: Pennsyltucky
Posts: 2,625
Re: Twist for 7mm? 175smk and 160AB

i agree, the 9 will be perfect.
__________________
davesonlinedeals.com
Reply With Quote
  #4  
Old 03-14-2006, 07:57 PM
Bronze Member
 
Join Date: Dec 2004
Location: north carolina
Posts: 82
Re: Twist for 7mm? 175smk and 160AB

What would you say on the twist if you also wanted to use a 140 grain often too?...still 9 or does anybody do a 9.5?
Thanks
Reply With Quote
  #5  
Old 03-14-2006, 08:35 PM
Platinum Member
 
Join Date: Feb 2004
Location: Pennsyltucky
Posts: 2,625
Re: Twist for 7mm? 175smk and 160AB

a 9.5 would probably be OK but you're starting to push your luck with the 175's.a 10 will work with the 160's. if you want a special twist, talk to the barrel makers that cut the rifling.they can make almost any twist you want.
__________________
davesonlinedeals.com
Reply With Quote
  #6  
Old 03-14-2006, 09:32 PM
Bronze Member
 
Join Date: Jan 2006
Posts: 50
Re: Twist for 7mm? 175smk and 160AB

Stick with a 9 twist. 140's are for velocity freaks!
Heavy = Accurate.

The 3500 & 3600 fps looks great on paper but won't look good on paper! (Targets that is!)

Try the 176 cauterucio, you will love it.

Do a search on that bullet, it has a .750 BC.

I dont know if I'd use it on elk, but deer or smaller heck yea!

Good Luck!
Reply With Quote
  #7  
Old 03-15-2006, 08:40 AM
Platinum Member
 
Join Date: Jun 2001
Location: Potomac River
Posts: 5,059
Re: Twist for 7mm? 175smk and 160AB

I have 7 wby with a 9.25 twist and the 160 & 162/168 match bullets are just a shade better than the 175 - not very much but just a tiny bit. I think with the 9.0 you will be just right.
__________________
The Smokin Fur Rifle Club
Reply With Quote
Reply

Bookmarks

Thread Tools
Display Modes


Similar Threads for: Twist for 7mm? 175smk and 160AB
Thread Thread Starter Forum Replies Last Post
175smk in a 7RUM Booney Reloading 6 10-09-2009 07:10 PM
Minimum SeatingDepth 175SMK 300WinMag bigbuTT Reloading 4 07-17-2009 09:11 PM
Need Good Load with 175SMK and RL22 mjbine Reloading 1 03-07-2008 01:49 PM
Varget 175SMK, Exbal and the Cosign Angle Indicator Rifles, Bullets, Barrels & Ballistics 21 03-26-2005 09:04 AM
175smk vs 168 barnes m14dan Long Range Hunting & Shooting 2 12-28-2003 12:50 AM


All times are GMT -5. The time now is 11:18 AM.


Powered by vBulletin ©2000 - 2014, Jelsoft Enterprises Ltd.
Content Management Powered by vBadvanced CMPS
All content ©2010-2014 Long Range Hunting, LLC