Lyman E-Zee Prime hand priming tool ** must use lyman shell holders ** - 777810

- Includes both large and small size primer trays/primer punch assemblies 
-Accepts all popular brands of standard shell holders, Including Hornady, RCBS, Redding, and Lee Precision 
-Plenty of leverage, yet provides needed "feel" for precision primer seating 

-Integral primer tay and primer punch assembly - no small parts to lose 
- Built-in Shut off gate to prevent spilling primers 
-Primer tray doubles as a flipper to oriend primers. 

*** while Lymans packaging clearly states this will accept all brands, we have noticed that the lyman shell holder works best in this as other branded shell holders sometimes don't seat the primers deep enough ***

Works for 577 snider & 577/450 with a Lee Shellholder but you may have to grind the pin down a bit on the lyman handpriming tool to avoid the primers sitting too deep. In saying that our customers firearm like it deep so test fire first before grinding it down.