What's up with #3 & #6? What would the resident shooters load for?

Looks like you pulled them.

You need to shoot longer than 300 yds with that rifle, far enough that there is vertical dispersion.

Don't close your eyes!

No shots were pulled as far I could tell in the scope.

Look at the velocities. Someone needs a new chronograph, scale or both!

Yeah im with backroads. Ya gonna have to step it back alittle farther

The range only goes to 300, but I know a place in the woods where I can go to 410. Lord willing I will give it a try Monday. I will not use brass #3 and #6.

Did you weight the brass? It could be smaller case capacity caused the velocity difference. Definitely not right on those two.

I will give that a try.

+1

Yeah, I'd be more concerned with that then where the bullet ended up on the target. Something definitely isn't right...

You guys can draw that conclusion without knowing the cartridge and it's capacity?

This has been an ongoing soap opera with ringman. Please try to keep up!

ongoing +P

I'll back off and let you guys take the starring roles.

How about this one?

Oops, nevermind, that was buckshot....

Assuming your velocities are correct, the difference vertically in POI @ 300 yards should only be .9" Getting 6" of horizontal is the worrisome part. What was the wind doing? Do you shoot over wind flags?

Topstock,



There was a 12 O'Clock wind. I agree with your opinion about .9" due to velocity. I don't use wind flags. I'm beginning to think this rifle is not accurate. I'm going to try something different tomorrow.

He was going up by 1/2 grain increments with a 90+ gr case capacity, with a sample of 1 for each load. The Chronograph resluts could easily be valid. I've seen similar results with ladders in large cases.

Thanks for the head's up!

I've done load work-up with both the. 300 & the .338RUM. I normally don't use a chronograph that early in load development, haven't seen that velocity jump.

I helped a buddy of mine work up some loads for the 300RUM. The problem with shooting ladder is each load is just a sample of one. When you are loading 100+ grains of powder, one grain is not a very large gain, so sometimes with the small samples you it will appear your velocity will stall out for a few increment until the overall increase in powder overcomes the margin of error.

If you repeated the test with 4-5 shots per load you would probably see a more normal progression.