My luck with clip on wheel weights has been poor at best with a ML. The stick on WW's are ok. The bullet my 1-28 twist 45 likes is the Lee improved minie sized .445 and paper patched. Then sized again to .451 I use an over powder wad with this bullet. Your going to size a .458 to .451 that is made out of WW's and your using a hand press? Remind me not to arm-wrestle you. Ron