resizing cast boolits from .457 to .454

[Larry7293]

Thinking of using the Lee 2-Cavity Bullet Mold 457-340-F to cast bullets for my henry 45colt. Presently using a 200gr rnfp .452 bullet with poor accuracy at 75 yards. Would it be feasible or possible to resize these bootlits to .454 from .457 with a rcbs lubesizer?

[44MAG#1]

Did it many time except I was sizing down .460 to .452 hard 515 grain bullets to use in a 454 Casull Encore pistol

[MostlyLeverGuns]

My old Lyman 454424 threw .457 bullets, I sized them to .454 for my .45 Colt with outstanding accuracy in a Hawes (J.P.Sauer) Montana Marshal colt clone. My sizing was in a Lyman 45 lubrisizer with 50-50 COWW-Pb, should not be a problem with RCBS.

[ABJ]

Yes you can but you may have to lube in a 457 die first then size down to 454. Some Lee boolits have very very thin lube grooves that will close up if there is no lube. I size down 3/1000 all the time without lubing first if the groove is big enough. It helps to spray some case lube lightly first if there is a long bearing surface.
Tony

[mdi]

Try it. .457" down to .454" is only .003" which means the sizing is ony displacing .0015" of lead on the OD...

[megasupermagnum]

Shouldn't be any harder than doing it in a Lyman 450. .003" downsizing is nothing.

[AntiqueSledMan]

Hello Larry7293,

I've done it for my muzzle loader, RCBS-300-FN and a sabot.
I think i'd lube them first, the lube grooves get pretty small.

AntiqueSledMan.