Will a drop tube change results of good load?

[340PR]

I agree with Magnum Maniac on the swirling especially. I use a drop tube if my loads are close to full case, but especially pay attention to the powder swirling around the funnel. Thinking is; that consistency is more likely if all actions are as identical as possible. FYI, Area 419 makes a really nice funnel with a drop tube and various caliber fittings.
Pricey, but the funnel is specifically designed for swirling, and the drop tube is the perfect length for my work.

 

[Michael Eichele]

If you're crunching slightly AND your seating depth is consistent, then you're not compressed enough to stress about it. It's when you're crunching such a dense load that seat depth is no longer consistent that is problematic. If it's accurate, consistent and has low ES/SD, why change it? Send it.