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Discussion Starter #1
I just got my order of Beartooth 300g WFNGC 44 mag bullets. I loaded up a batch and took them to the range for testing in my Marlin 1894, 16" bbl, 1:38 twist with AO ghost ring sights. The rifle had previously been sighted in to shoot 1.5" high at 50yds. with loads using the competitor's equivalent 300g LBT bullets about two months prior.

Winds were steady from about the 1 o'clock direction at about 25 mph, gusting to 40 mph. I knew that there was no way that there would be any meaningful groups but heck, it was warm and sunny so I stayed to shoot anyway.

My question is...

What groups I did shoot came in consistently 5" low at 50 yds. with these heavy (and stout) loads. I then tried, some rounds of the same loading using the other guy's bullets... same thing, about 5" low. Puzzled, since AO Sights don't ever shift, I then shot commercial 240g JHPs. Again, same result (maybe an inch lower still).

I know that strong winds will destroy groups because of its effect of bullet flight and because it blows the shooter around but have you ever heard of strong headwinds pushing bullets downward???

The rifle was fired from the bench on sand bags and velocities should have been around 1650fps.

What variables am I missing?
 

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Hi, Stranger;
  You got me. I ran it through 2 different ballistics programs and got a 1 inch extra drop at 200 yards with a 40 mph headwind. I assumed a BC of .2 and standard atmosphere.

  One other thing. Is the wind blowing down? I've seen a wind coming over a row of trees and flowing downward along the line of fire pushing bullets down, but a 40 mph crosswind should give 3.7" drift at 50 yards. <!--emo&???--><img src="http://beartoothbullets.com/iB_html/non-cgi/emoticons/confused.gif" border="0" valign="absmiddle" alt='???'><!--endemo-->

Bye
Jack
 

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Discussion Starter #3
I guess the mystery will only be solved when I shoot again on a calm day. However...  I wonder if I may have been leaning into the bench or somehow holding the rifle differently because of the headwind.
 

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Question?
What was the temp. when you sighted in the first batch of reloads?
Jim
 

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Discussion Starter #5
Jim:

Afternoon temps have been anywhere from high 50s to high 60s for the past couple of months.
 

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My guide gun came shooting so low, that the factory sights could not be adjusted to zero any load.  Had to install a Williams receiver sight and an extremely low front bead.  The Williams sat so high that I questioned its durability.  Should have sent it to Marlin for rebarreling.  Heard about others with the same problem.  I ended up selling the thing.  Good ridence.
 

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I've got a real good friend and shooting buddy, Deane. Well Deane and I both have the same strange sense of humor. So while out at the range he was putting all of his shots low and to the left. I tried the revolver and it shot to point of aim for me, and it was shooting to point of aim for him the previous week.
So while Deane was spooling up for a fine cussing  himself out, I decided action was needed. So I pulled down a 50 Cal. ammo can and set it on the ground next to his left foot. That got his attention enough to ask what the blazes I was up to.
As patiently and convincingly as I could muster, I told him that since he was shooting low and to the left, he was out of level and needed a bit of shimming. So would he please put his left foot on the ammo can and proceed to shoot. Well it brought the shots back into the bullseye. So any time one of us seems to get in to consistantly misplaced shot placement, the other will suggest digging a hole if the shots are high, put two ammo cans down for standing on if the shots are low.
We even carry a shovel for leveling the shooting bench for those bad days.
You need to stand at least 5 inchs higher and the bullets will be right where you want them.
Jim
 
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