Why doesn't my Dillon 550B meter consistant weights?

[HSmithTX]

I believe mine is Dillon but I might be mistaken, any 7/8 threaded adaptor should be fine provided you have the right funnel.

 

[Axl]

I load 24 different calibers on my Dillon 550B. I have 3 sets, one for Mag calibers and one each for sm and lrg primer loads. My secret for accurate throws is a sharp edge on face of powder bar, coupled with after Mkt powder separator inside of dispenser...Also spring on top of powder bar like on 550a. FL size and prime all cases first, keeping all seating dies very clean. PM me if unclear about my options, been using Dillon for over 40 yrs.

He's probably not going to PM you, He posted that in 2008...