what is the largest spread difference you've seen?

MileHighShooterMileHighShooter Senior MemberPosts: 4,768 Senior Member
Talking same gun, same day, but different loads.

I'm at the range right now taking a break between groups. Testing out new elk loads for next week. I used my deer loads to confirm being on, and as fouling shots. Two shots, with in an inch. Ok, seems normal.

I go to my first new load. For time, and a finite supply of these bullets, I did 1gr under max, and one max. First test was

165gr FailSafe
1 under max imr 4064

This got me sub moa.

Next load at max. Looks to be closer to moa but still under. Things are going great!!

So I run the bore snake, and hook up my air mattress pump (thanks z man) and let that run a bit.

Fire another two fouling shots...touches.

Next load up
Same bullet
1 under max RL17

......it took a while to find the hole. Pointing at center, it hits the upper left diamond! 2nd shot back near center...3rd....halfway between.

This is the biggest shift in poa and biggest group I've ever shot with hand loads.

Anyone else seen this??
Wambli Ska wrote: »
Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.

Replies

  • ZeeZee Senior Member Posts: 20,564 Senior Member
    Yes.
    "To Hell with efficiency, it's performance we want!" - Elmer Keith
  • MileHighShooterMileHighShooter Senior Member Posts: 4,768 Senior Member
    20131027_141838_zps6b47ae26.jpg
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • MileHighShooterMileHighShooter Senior Member Posts: 4,768 Senior Member
    20131027_142020_zps9249173b.jpg
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • MileHighShooterMileHighShooter Senior Member Posts: 4,768 Senior Member
    I didn't want to wait an hour for cease fire to get the target, so phone pic through a spotting scope will have to do. The first picture is the 4064 and second is rl17

    I think I'm sticking with 4064 lol just like my 130 gr load....one grain under max was best.

    Couldn't shoot over a chronograph....but that load SHOULD be around 2850 +/-

    Recoils a bit....stiff. 18 rounds was enough for today.
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • BigDanSBigDanS Senior Member Posts: 6,796 Senior Member
    What caliber? What bullets? Same primers? If it is spinning off to the right, and I am assuming RH twist rate... dunno... :roll:

    D
    "A patriot is mocked, scorned and hated; yet when his cause succeeds, all men will join him, for then it costs nothing to be a patriot." Mark Twain
    Alcohol, Tobacco, Firearms and Explosives.... now who's bringing the hot wings? :jester:
  • ZeeZee Senior Member Posts: 20,564 Senior Member
    Looks excellent. I assume this is the .30-06?
    "To Hell with efficiency, it's performance we want!" - Elmer Keith
  • MileHighShooterMileHighShooter Senior Member Posts: 4,768 Senior Member
    Sorry, yes it's the colt 30-06

    Bullets were listed, ,165 gr FailSafe

    Primers and brass were the same, Hornady 1x fired brasd, Winchester WLR primers. Seating depth was the same @3.237"
    Wambli Ska wrote: »
    Once again, please refrain from cutting short any baseless totally emotional arguments with facts. It leads to boring, completely objective conversations well beyond the comprehension ability of many.
  • ojrojr Senior Member Posts: 823 Senior Member
    Shooting position, but heck I wouldn't think it would make that much difference.
    Quis custodiet ipsos custodes?
  • jbohiojbohio Senior Member Posts: 5,507 Senior Member
    I've seen that. With my heavy 243. Everything the same, except powder. First powder, best load, .3"ish. Second powder, first charge weight, 3 shots, missed the target. Next step up, just about had to hammer the bolt open. Nowhere near book max. Those got pulled.
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