Results 1 to 7 of 7

Thread: savage 6br converted to 308

  1. #1
    Join Date
    Oct 2019
    Posts
    412

    savage 6br converted to 308

    OK this is to be an "accurate" rifle. but not a bench rest rifle
    308 win 175 smk's or lapua 185's, lapua brass
    something UNDER 1 moa out to 800 yards, 1/2 moa would be great but not required.
    donor rifle was a 6 BR Savage Model 12 LRPV; Factory hvy SS 26" bbl w/1-12" T
    bedded H S PRECISION stock.
    bbl replaced with a lilja mk13 1/10 cut to 24", with a threaded muzzle, palma 95 reamer.
    lapua 185's comes out to a tad under 2.83 at "touch", lapua palma brass. fed primers, n140 powder.
    i have shot this powder and bullet in 308 before so i expect quick load development.
    goal is under 1 moa out to 800 yards.

  2. #2
    Join Date
    Dec 2015
    Location
    Nampa Idaho
    Posts
    730
    Sounds like bench rest accuracy to me.Get back with your results.

    Mort

  3. #3
    Join Date
    Oct 2019
    Posts
    412
    bbl back from SBN, all assembled.
    bore sighted at 40yds and 2 shots
    2 shots at 100 and good
    then just one shot at 200 and good.
    i was going to do a shoot and clean for 5 shots,
    but the SBN is very HARD...LIKE A ROCK. so really no break in, just shoot it.
    i did clean after 5 shots...no copper
    i shot an 8 shot ladder at 200 yards( i have shot this bullet/primer powder before)

    less than 1.5" spread for 7 of 8 shots. shot 7 was a flier....no known cause, velocity was on...probably the shooter
    that was a 1.8 gr spread of powder. ran from just under 2500 to just over 2600 fps.
    need to pick some spots and shoot some groups.
    ( i just cleaned the bore...8 shots...no copper..none)
    no hiccups, brass looks good/primers look good, bolt ran ok

  4. #4
    Join Date
    Oct 2019
    Posts
    412
    well 200 yard shooting produced three large groups and one small.
    1.5-2.5 3 shot groups with a just over 1/2" for the winner.
    need to back it up with some 5 shot groups, get some zeros.
    i did one more mod...shortened the ejector spring, cases eject on the bench
    and bolt closing is softer and smoother.

  5. #5
    Join Date
    Dec 2015
    Location
    Nampa Idaho
    Posts
    730
    Sounds like you are on your way.....Could be awhile but good luck.

    Mort

  6. #6
    Join Date
    Oct 2019
    Posts
    412
    shot two 5 shot groups today at 200 yards. a little windier.
    aver is 1.3 so .65 which is still inside my goal.( under 1)
    now to load more and get some zeros

  7. #7
    Join Date
    Oct 2019
    Posts
    412
    installed this scope
    Leupold VX-3i LRP 8.5-25x50mm 30mm Side Focus TMOA Riflescope, Matte, 172345
    and took off the vortex viper hs-t 6-24. nice improvement.

    So the big news is i screwed up the loads for the previous data.
    i used the wrong lot of primers.
    for zeroing the new scope and establishing 100/200/300 yards zeros...the correct formula was used.
    at 100 i have .63 but twice i did 2 shot groups at .101 and .120.
    at 200 i have .528 which is .269 , this is up 2.5" from 100 and left .5
    at 300 i have .824 which is . 275 , this is up 3" from 200 with no windage adjustment.
    the cross hairs do not cross but with an open in the center. tuff for small groups at short range,
    but fairly easy to center up on as the distance get longer.
    the new scope fits the job very nicely.
    the plan was less the 1 moa, with 1/2 being great.
    life is good
    Last edited by rsmithsr; 11-29-2020 at 02:47 PM.

Posting Permissions

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