The Firing Line Forums

Go Back   The Firing Line Forums > The Hide > The Art of the Rifle: Bolt, Lever, and Pump Action

Reply
 
Thread Tools
Old March 8, 2013, 10:55 PM   #1
Khaot1c
Member
 
Join Date: March 14, 2008
Location: Florida Panhandle
Posts: 53
Need help finding rifle twist for a Rem 788 22-250

A Remington 788 has been handed down to me from my grandparents.
I'd like to find out what the rifle twist is in the barrel.

I don't know when it was purchased - sorry I can't be of any help, and the folks that purchased it aren't alive any more to ask.....

The barrel doesn't have anything scribed except their;
Remington Arms Co Inc, IION, NY, Made in USA
and the chamber; 22-250

closer to the receiver are the marks;
9P P 41


Any help would be appreciated.

Thanks in advance,
Khaot1c is offline  
Old March 8, 2013, 11:15 PM   #2
jimbob86
Senior Member
 
Join Date: October 4, 2007
Location: All the way to NEBRASKA
Posts: 6,778
Measure it yourself:

Set the rifle in something to secure it (gun vise, sand bags) in a horizontal position.

Remove the bolt.

Put a properly fitting bore brush on a cleaning rod longer than the barrel, with a handle that allows the rod to turn.

Insert the brush into the breech end of the barrel and push until it starts to turn.

Take a sharpie and make a mark on the topside (12 o'clock) of the cleaning rod at at point that can referenced to the gun, say even with the buttplate.

Push the cleaning rod into the bore. It will turn (most American rifling turns right) ...... watch your mark you made.

When it makes one complete turn and comes back to 12 o'clock, make another mark on the top of the rod at the same reference point you chose earlier.

Push the cleaning rod all the way out the muzzle (changing directions mid bore is bad ju-ju) and either remove the brush or pull it back throgh..... either way, remove the rod from the gun and measure the distance between your two 12 o'clock marks ...... your barrel's rifling makes on turn in _x_ inches, x being the number of inches between your marks.

Hope that helps.
__________________
TheGolden Rule of Tool Use: "If you don't know what you are doing, DON'T."

http://nefirearm.com/
jimbob86 is offline  
Old March 8, 2013, 11:45 PM   #3
Sport45
Senior Member
 
Join Date: May 25, 1999
Location: Too close to Houston
Posts: 4,068
Good advice above.

I use a jag and patch which can be reversed in the barrel. Make your 12 o'clock mark on the handle end of the rod. Get it started in the rifling and make a mark at the end of the receiver (or muzzle if you go from that end). Mark it again when the mark on the end of the rod has made one complete revolution. Remove the rod and measure between the marks.

I do it this way because the index mark is always visible and hasn't (usually) passed my reference point on the rifle.

On some you have to measure a half a revolution and multiply by two... My 1 in 38 Marlin comes to mind.
__________________
Proud member of the NRA and Texas State Rifle Association. Registered and active voter.
Sport45 is offline  
Old March 9, 2013, 01:36 AM   #4
BIG P
Senior Member
 
Join Date: July 8, 2010
Location: North Georgia
Posts: 1,591
Mines 1 in 12 if that helps.
BIG P is offline  
Old March 9, 2013, 02:23 AM   #5
Scorch
Senior Member
 
Join Date: February 13, 2006
Location: Washington state
Posts: 11,448
A 788 in 22-250 should be a 1:14" twist.
__________________
Never try to educate someone who resists knowledge at all costs.
But what do I know?
Summit Arms Services
Taylor Machine
Scorch is offline  
Old March 9, 2013, 09:04 AM   #6
Picher
Senior Member
 
Join Date: December 14, 2004
Location: Maine
Posts: 2,781
I'm pretty sure that all early Rem .22-250s were 1:14, but it doesn't hurt to measure yours to be sure.
Picher is offline  
Old March 9, 2013, 09:33 AM   #7
Bart B.
Senior Member
 
Join Date: February 15, 2009
Posts: 4,813
Found this source of twists for all sorts of things:

http://www.exteriorballistics.com/re...bles_Rifle.pdf

It says your barrel's got a 1"14 twist. Same as the rifling twist section in my Sierra Bullets loading manual.
__________________
US Navy Distinguished Marksman Badge 153
Former US Navy & Palma Rifle Team Member
NRA High Power Master & Long Range High Master
NRA Smallbore Prone Master
Bart B. is online now  
Old March 10, 2013, 12:46 AM   #8
Khaot1c
Member
 
Join Date: March 14, 2008
Location: Florida Panhandle
Posts: 53
Thanks all for the good info.

Though all the reading from the last couple of days suggests 1/14". Stil, I'll try the jag/patch, rotating cleaning rod trick in the morning.

Thanks again,
Khaot1c is offline  
Old March 10, 2013, 02:45 PM   #9
w748
Member
 
Join Date: February 19, 2008
Location: High in the Rockies
Posts: 89
Mine is 1/14. Limit your ammo choices to 55gr or lighter and I think you'll be surprized how accurate these can be( once you get used to the trigger).
I have one hunting load with Sierra #1390 and IMR 4320 that's an honest 1/3 MOA for three shots.
w748 is offline  
Reply

Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump


All times are GMT -5. The time now is 01:20 PM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
This site and contents, including all posts, Copyright © 1998-2014 S.W.A.T. Magazine
Copyright Complaints: Please direct DMCA Takedown Notices to the registered agent: thefiringline.com
Contact Us
Page generated in 0.07320 seconds with 9 queries