Daystate Wolverine R .177 shot string

Forums PCP Airguns Daystate Wolverine R .177 shot string

  • Views : 831
  • Link

    Kdog
    Participant
    Member

    So I did a little adjusting to my new Wolverine R .177 and ran it through the Chrono to see how the numbers look. I initially filled it to about 225 bar and shot 30 shots…Hi 903…lo 895…avg 889. ES 18…SD 3

    At this point it was down to 200bar and I reset the Chrono because normally I only fill to 200bar and find most guns to be consistent at this pressure. So from 200 to 150bar I shot 100 shots. Hi 893…Lol 880…avg 885…ES 13….SD 2fps. These numbers are what I was looking for when I bought this rifle with the Huma regulator. I must add the pellet is JSB 10.34 Heavies.

    At this point I was at 150 bar and wanted to see when it fell off the regulator….another 27 shots and then it fell off the regulator at approximately 125 bar. So approximately 160 very consistent shots from 225-125 bar but crazy consistent from 200-150bar. Just thought I'd share my findings.

    Link

    aa_limited
    Participant
    Member

    would love to see the full length shot string put together. is that possible? would be great thanks.

    my air wolf swap says to fill to 230 bar… but I never do any more cuz the shot string is flatter from 185 bar down to 80 bar.  this is on low power 14foot pounds with jsb 10.3s

    my raw bm50 177 I fill too 200 bar and it goes off the reg at 125 bar… so 125 shots with an es of 10.. 

    Link

    Spray1Mark
    Participant
    Member

    Try a shot string with JSB premium exacts (the black hard box) I bet you will cut the FPS variation in half. My Anschutz does 70 shots with a 3FPS variation using them.

    Link

    Kdog
    Participant
    Member

    The shot to shot deviation is only 2fps over 100 shots from 200-150bar. I don't think you can improve that by much.

    Link

    John_in_Ma
    Participant
    Member

    You should expect a bit of reg creep as the gun settles in. You should also see your extreme spread and standard deviation tighten up as well.

    Link

    Spray1Mark
    Participant
    Member

    Kdog

    The shot to shot deviation is only 2fps over 100 shots from 200-150bar. I don't think you can improve that by much.

     

    You quoted SD of 2, not an extreme spread of 2? your extreme spread is 13, my extreme spread is 3!

     

     

    Link

    Kdog
    Participant
    Member

    Well I am extremely pleased with a extreme spread of 13fps over 100 shots lol. Glad your es is tight.

    Link

    Spray1Mark
    Participant
    Member

    In truth ES & SD especially are only useful in determining how a rifle will perform at long range (maybe 100 for air rifle?) but we typically only used SD when shooting 1000 yards to predict how a load would perform.

     

    Link

    aa_limited
    Participant
    Member

    my raw bm500 came shipping doing 915 to 920 with jsb 10.6

    but when I turned the hammer spring to get to going at 885 the accuracy got  a lot better.. bench rest quality.

    its great to see that kdog got better results just lowering fps…

    thanks for the exelent post kdog ..your sd is looking pretty good for a new gun.. im sure yr sd will get even better over time as the reg sets in.. its sure good now

Viewing 9 posts - 1 through 9 (of 9 total)

You must be logged in to reply to this topic.