Dillon 550B 300Win Mag Load

[jwk]

Do anyone load 300WM loads on a Dillon 550B??I just received my mag powder bar and I need a starting load of 70gr of H4831 and I fill the first case with powder and I get 69.9 then the next is 70.5,69.7,70.2!!!!!!!!Is there something I'm doing wrong?I load 357mag all the time and it works great.

 

[damndirtyape]

It might be static electricity. Rub down the powder bar, hopper, funnel etc. with a dryer sheet. Maybe try running a pound of powder through the system without loading any rounds, get a good coating of powder residue on all the parts.

 

[maynard]

Extruded powder will do just what you are seeing with the Dillon 550.
It is as good as it gets. Set it a couple of tenths under and trickle to what you want.

 

[PETE 1]

If your going to use the Dillon for H4831 try using H4831SC it tends to meter much better.

 

[jwk]

Thanks for the tips guys!I will give them a shot