Home | Ezine | Forums | Links | Contact
NitroExpress.com: Jackscrews for regulation

View recent messages : 24 hours | 48 hours | 7 days | 14 days | 30 days | 60 days | More Smilies


*** Enjoy NitroExpress.com? Participate and join in. ***
You are not logged in. [Login] Main Index · Search · Active Topics
New user · Who's Online · FAQ · Calendar

Double Rifles, Single Shots & Combinations >> Double Rifles
Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  

Pages: 1
BillfromOregon
.333 member


Reged: 27/10/04
Posts: 254
Loc: Sweetwater, by God Texas
Jackscrews for regulation
      #35672 - 11/08/05 12:57 AM

Fellas, how do these work and what do they look like? Seems the Valmet O/Us used these didn't they? I hear the new Baikal/Spartan uses this system on the SS double. I asked a guy over on the AR forum how they work on his Baikal 30-06, but he's too busy with a pissing match to bother answering.

Post Extras: Print Post   Remind Me!   Notify Moderator  
foxfire
.375 member


Reged: 25/11/04
Posts: 511
Loc: Long Island N.Y.,
Re: Jackscrews for regulation [Re: BillfromOregon]
      #35695 - 11/08/05 11:06 AM

The Valmet 412 has two ways to adjust point of impact. There are 2 screws on the barrel band loosen one and tighten the other and the horizontal plane moves the point of impact. There is a wedge that slides forward and back that moves the vertical point of impact. My Valmet 9.3x74R will literally shoot to the same place at 100yards.

Krieghoff has a sliding wedge between the barrel and only adjusts the horizontal plane of impact and only up to 375 H&H. My 7x65R barrels were crossing with Norma ammo. A 1/4 turn counter clockwise (you could see the barrels separating and they no longer cross. They now shoot better but I'm still working on improving what I've got.

I don't know anything about the Blaser but I've seen it and handled it. It seems like the valmet. Loosen one and tighten the other and the barrels move the point of impact.

Remember little adjustments at a time.

--------------------
No good deed goes unpunished

Post Extras: Print Post   Remind Me!   Notify Moderator  
Pages: 1


Previous topic Previous   View all topics Index   Next topic Next   Threaded Mode Threaded  

Extra information
3 registered and 192 anonymous users are browsing this forum.

Moderator:  CptCurl 

Print Topic

Forum Permissions
      You cannot start new topics
      You cannot reply to topics
      HTML is disabled
      UBBCode is enabled

Rating:
Topic views: 1359

Rate this topic

Jump to

Contact Us NitroExpress.com

Powered by UBB.threads™ 6.5.5


Home | Ezine | Forums | Links | Contact


Copyright 2003 to 2011 - all rights reserved