Results 1 to 12 of 12

Thread: a thumbs up to tubb's final finish bore lapping system

  1. #1
    Join Date
    Dec 2017
    Posts
    341

    a thumbs up to tubb's final finish bore lapping system

    i know this is a benchrest site and most bbl's are top quality.
    but
    i bought a new savage 223 and the bore was not very smooth.
    i decided to try final finish..all 50 bullets and see how things end.
    i have finished, followed instructions, and i can say without a doubt,
    that the bore is smooth compared to the railroad tracks i started with.

    i will do some load testing and see how it does. it was not real impressive
    before the lapping.

  2. #2
    Join Date
    Feb 2003
    Location
    Tennessee
    Posts
    5,023
    Would be good to get a "final" report on your endeavor. Once you shoot the rifle, please give us something on whether the accuracy improved or it was easier to clean...and heaven forbid, anything "unfortunate".

  3. #3
    Join Date
    Feb 2003
    Location
    Tennessee
    Posts
    5,023
    How does the rifle shoot now?

  4. #4
    Join Date
    Dec 2017
    Posts
    341
    TOO MANY OTHER IRONS IN THE FIRE AT THIS TIME.

    but i will get there

    Quote Originally Posted by Wilbur View Post
    How does the rifle shoot now?

  5. #5
    Join Date
    Feb 2003
    Location
    Tennessee
    Posts
    5,023
    OK - but please let us know as this is a fairly sensitive subject.

  6. #6
    Join Date
    Dec 2017
    Posts
    341
    ok i'll move it up the line a bit
    Quote Originally Posted by Wilbur View Post
    OK - but please let us know as this is a fairly sensitive subject.

  7. #7
    Join Date
    Dec 2017
    Posts
    341
    not a complete answer but a good indicator.
    i shot a 10 shot ladder to establish a new base line for the "new" bbl.
    0.3 steps 60 grain bergers.
    the 10 shot "group" was smaller than some prior 5 shot groups.
    more to come.

  8. #8
    Join Date
    Aug 2015
    Location
    Sacramento
    Posts
    3
    A number of years ago, I had a Win M70 Supergrade 338 Win Mag that was made during the last few years before the New Haven plant closed. I was lucky to get 3 inch groups from it, so I tried the Tubbs Final Finish on it. I figured it couldn't hurt. Well, to the end of the story, after firing the 50 rounds according to the instructions, the same loads I was shooting before were now giving me groups in the 1.5 inch range. I would say that was a major improvement. That rifle went from one I would never thing of hunting with to one that had OK hunting accuracy. I was tempted to buy another box of Final Finish to see if I could improve it more, but someone made me an offer for the rifle and I sold it.

  9. #9
    Join Date
    Dec 2017
    Posts
    341
    today i shot two 5 shot groups of 8208 with berger 60 match varmint
    with a mild left right, right left wind. with flags but i am not an experienced short range
    br shooter. all at 100

    24.5
    0.502 group, 0.423 vert, 0.318 hor

    24.8
    0.604 group, 0.126 vert, 0.604 hor

    much better than prior shooting, so yes it seems to work well
    inspite of the wind giving me a .6, i like the vert of only 0.126 on the second load.

    comments accepted
    i'll post again after cleaning

  10. #10
    Join Date
    Dec 2017
    Posts
    341
    a total of 28 rounds fired,
    cleaning was easy.
    i am a chemical cleaner not a brush guy
    two applications of wipeout with accelerator and it was clean.

    in my case, clearly worth the money time and effort.

  11. #11
    Join Date
    Sep 2017
    Posts
    24

    Taper the bore?

    Does this system possibly slightly taper the bore as well as smooth/finish it?
    Can you feel any tightening down the bore using a tight patch?

  12. #12
    Join Date
    Dec 2017
    Posts
    341
    no clue
    what i KNOW,
    it cleans easier
    it shoots better
    it is an inexpensive savage that was a special thru cabelas

    on some of my custom rifles i can feel a tight muzzle.

    Quote Originally Posted by KC57 View Post
    Does this system possibly slightly taper the bore as well as smooth/finish it?
    Can you feel any tightening down the bore using a tight patch?

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •