Ammo loaded on 550 Dillon

Recently purchased 550 to load for wad gun. Accuracy seems to have dropped considerably. Powder drop seems accurate. Does anybody make a two step die or custom seater plug to seat lead bullets more accurately?

Two steps but process your brass first' size and expand normally, then use different setup prime then ,using a rifle powder funnel, drop powder and seat and crimp.  You can clean your brass between the two process steps.  Triples the chances of catching split cases.

what bullet are you loading?

I use these for my 45 wadcutter and also for my 38 super

http://www.uniquetek.com/site/696296/product/T1561


also use a "m" type powder drop tube.. keeps the bullet straight when seating.

http://www.ebay.com/itm/45-ACP-M-style-powder-funnel-powder-die-for-Dillon-RL550-XL-650-RL-1050-/222114543747?hash=item33b70ef883:g:M4oAAOSwZJlXMrEF