But I can't complain with how my load is shooting 

Glass. The problem with plastic would be static causing the kernels to stick inside.Changeling said:Hi Ridgeway & Cakes.
I have to admit I never thought of or considered this method! However I sure do like the idea a LOT! It would save me one heck of a lot of time.
Are you both using Glass or Plastic tubes? I ask this because some plastic might have interactions with powders.
Thanks for posting your procedure. Lots of times it's the simple things that are best, this is definitely one of them.