Help on sizing/lube die

[jimpa]

Got a noe 311247 mold,, made some medium hard slugs, then got some pure lead and made several.
Picked up a used die for the ancient lyman and it si 308. I tried sizing the pure lead and it oboterated every slug,, they got like 1/10 inch into die.
Ran s hard cast bullet and it only went in part way--- tghew clincher is that the lubrication grove was reduced to less then the size of a human hair.
Do I need a 309 or a 310 die?.
Anybody else have any experience with 311247.