For CPC: A few questions about my 77/22 - Page 4 - RimfireCentral.com Forums

Go Back   RimfireCentral.com Forums > >

Notices

Join Team RFC to remove these ads.
Reply
 
Thread Tools Display Modes
  #46  
Old 04-13-2017, 08:40 AM
Nathan11B
National Guard Veteran

Join Date: 
Feb 2012
Location: 
Duluth, MN
Posts: 
372
TPC Rating: 
100% (5)


Log in to see fewer ads
Can't wait to see the results.
Reply With Quote
  #47  
Old 05-18-2017, 12:26 PM
OldWolf's Avatar
OldWolf

Moderator
Join Date: 
Oct 2003
Location: 
Near the Southern Part of Heaven, North Carolina
Posts: 
5,391
TPC Rating: 
100% (21)
Quote:
Originally Posted by Nathan11B View Post
Can't wait to see the results.
I've been shooting patterns with various loads, free floated my factory stock, and installed a bi-pod.
Today I hope to make it to the range and pattern with Wolf M&T. Shortly after I will put together some comments and post them here. Thanks for the interest.
__________________
OldWolf


Reply With Quote
  #48  
Old 05-18-2017, 05:59 PM
screaminweasil

Join Date: 
Dec 2015
Posts: 
11
TPC Rating: 
0% (0)
Well shoot. I was wondering why there was no follow through to the post. Hope you get it figured out.

Thanks for the update, I appreciate it. Good luck with the next testing and I look forward to an update, hopefully "good news"
Reply With Quote
 
  #49  
Old 05-21-2017, 08:41 PM
OldWolf's Avatar
OldWolf

Moderator
Join Date: 
Oct 2003
Location: 
Near the Southern Part of Heaven, North Carolina
Posts: 
5,391
TPC Rating: 
100% (21)
So. After a lot of shooting, I think I am beginning to figure out this rifle.

This 77/22 can average better than .50", but it takes a lot concentration on my part. I have tested 3 types of ammunition so far, none of it terribly expensive (CCI SV, PMC Moderator, Wolf Match and Target) and I am beginning to think that I need to test with the next level of ammunition. I am thinking Lapua Center-X, perhaps.

Another issue is my stock. I am using the original walnut stock that I free floated before shooting the groups you see below. It is not bedded or pillared, and I am thinking about doing that next. I feel the Ruger stock is rather flexible and that it may be moving my POI all about as I prepare for my shot. I am careful though to not exert too much load on my stock as I prepare for the shot. I am considering installing a Boyds Thumbhole stock in attempted to stiffen things up.

My scope. I am using a Simmons WTC-18, dialed up to it 20x maximum. This is decent scope that I have been satisfied with for many years. Now though, I can tell the optics are not as good as I once thought they were, as my eyes are very strained by the end of my shooting sessions. A higher quality scope would improve things for me, if only my level of comfort.

As a side note, it is remarkable just how much concentration it takes for me to shoot consistent patterns. When I let my mind wander, just a bit, it really throws my grouping. At least for me. Most of the concentration is directed to being consistent, not putting a load on the stock that may change POI, holding a consistent sight picture from shot to shot, applying pressure to the trigger in a consistent fashion, “calling the shot” when the round has gone down range. I have noticed a direct correlation to the size of my groups to my level of concentration. As an example, if I started to think about supper while I am taking my shot, my groups widen (maybe even a flyer). Imagine that!

Below is a decent 50 yard string that I shot last week with Wolf MT. During this run, my mind wandered and I had a wild flyer, so I removed that group from the data. Those three groups that were <.2" really had my heart pumping! The last one, 0.732" was not great, but I did not feel that there were any problems with my shot, so I left it in.

As I said, the ammunition used is Wolf MT. However, it is more than 10 years old. That may, or may not, have been a factor. I am waiting on a shipment of fresh SK Standard Plus (same thing as Wolf MT), so it will be interesting to see how that load stacks up.

Overall, my average of .38" is a lot better than the 0.66" I was able to shoot before the CPC work was done to the rifle. I can only hope that when I get around to pillar and bedding my Ruger stock, or pillar and bedding a new Boyd's Thumbhole, that it can only get better. We will see. Don't hold your breath though, it may take me awhile!
Attached Images
File Type: jpg 20170519_065153.jpg (502.3 KB, 8 views)
File Type: jpg 20170519_065208.jpg (514.9 KB, 8 views)
File Type: jpg 7722WolfMT.JPG (23.4 KB, 47 views)
__________________
OldWolf



Last edited by OldWolf; 05-21-2017 at 08:45 PM.
Reply With Quote
  #50  
Old 05-21-2017, 11:11 PM
donie

Join Date: 
Dec 2010
Posts: 
236
TPC Rating: 
0% (0)
Wow, that is great!
So far under adverse weather conditions I have been able to get dime size groups using RWS Target Rifle, I am more then happy with that.
I am really working on off hand shooting with the rifle, tightening things up changed things, much more fun.
I had to pillar bed my 29yr old stock, it was distorting the receiver. I found I had to add pressure to the barrel at the forearm tip, I used tape and found I was pulling over the barrel some using the sling. I came up with using a button of wood that is sunk into the stock, can be shimmed as needed, and has less pull over.

Reply With Quote
  #51  
Old 05-22-2017, 08:40 AM
OldWolf's Avatar
OldWolf

Moderator
Join Date: 
Oct 2003
Location: 
Near the Southern Part of Heaven, North Carolina
Posts: 
5,391
TPC Rating: 
100% (21)
Where did you get your pillars,,,and did you also bed the action?
I am not finding much online about 77/22 pillar parts and such.
__________________
OldWolf


Reply With Quote
  #52  
Old 05-22-2017, 10:51 AM
donie

Join Date: 
Dec 2010
Posts: 
236
TPC Rating: 
0% (0)
I made mine on a lathe from aluminum bar.
I think I saved my notes on the dimensions. The one at the trigger had to be filed a little to fit the tang.


The photo shows that I made them as large in diameter as possible, I wanted a solid seat for the action. I searched around, talked to a few folks, then used the "stress free" bedding method- where an elastic wrap is used to hold the action down while the bedding cures-the action screws are in place, but not tight. Now, it does not matter how tight the action screws are, shows no difference in groups, I just use a stubby screw driver in stead of a torque driver.
Being on a budget, I used JB Weld "slow dry" for the bedding, and Kiwi shoe polish for the release agent. The JB Weld can be mixed up and let sit a while, mix again until it is as thick as needed.

Last edited by donie; 05-22-2017 at 11:05 AM.
Reply With Quote
Reply

Thread Tools
Display Modes

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




All times are GMT -5. The time now is 03:44 PM.

Privacy Policy

DMCA Notice

Powered by vBulletin
Copyright ©2000 - 2017, Jelsoft Enterprises Ltd.
Search Engine Optimisation provided by DragonByte SEO (Lite) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2017 DragonByte Technologies Ltd.
Copyright 2000-2015 RimfireCentral.com
x