May have a little Powder that has been crushed in the dispensing process. There is a screw on the side,,back it out,remove cylinder, and clean with a cloth. I prefer a microfiber.Just wipe it down and the housing the assembly rides on. NO LUBE ! Re-assemble.
I have 2 Bruno's that work great.
I currently use a RCBS Charge Master.They work great. Use a 12 V 8AH battery for use at the range. You will have to take it to a Batteries plus type store and have them identify the positive and negative for the unit,and attach the appropriate clips. You will also need a battery charger. I have shot National matches without charging the battery,2-3 days of practice and 6 days of competitation.
Good Luck