The Trickling of One Powder

[mc223]

The thread about trickling to the Nth degree, made me curious. So I weighed and weighed and then counted kernals and weighed some more.
The powder I'm loading now is H4895.

6 kernals of H4895 is very close to .1 grain.

So if I accept that dropping powder at +- .1 grain with this powder I could be missing my target weight by 6 kernals either way. Sure don't seem like much does it?

In my rifle this past weekend, I wondered why I was getting an occasional flyer for no apparent reason. When I got back home I started pullin bullets and checking charges. Some of the finding cleared flyers up pretty well. Some were .3 g (18 kernals) from the target charge, both high and low. I had weighed each charge but did not get anal about where the pointer was pointing. And what about that one or two that a few kernals missed getting in the case. Getting in a rush caused this trying to beat the rain.
If a half grain increase will give, say 50 fps increase in velocity, I had a 30fps variation in both directions. That is an operator induced discrepancy, not even looking at case volume yet.

Any thoughts or comments?
*

 

[jacobhh]

I don't know your caliber, load or range. and I don't
know what you consider a flyer but a quick glance at
the Hornady balistic tables makes me think you're
in the couple tenths of an inch range at 100 yds. in
velocity variation.

 

[30Cal]

Load up ammo for a group with half of them 0.3grs heavy and the other half 0.3grs light. Then load up another batch with all of them dead on. I'd be surprised if you'll be able to see a difference on the target between the two.

Ty