necking up

P

phil evans

Guest
i've changed a rem 700 .243 shilen into a .308 hart.
.441 moa best ever 5 shot group with shilen .243.
now occasionally .235 moa with hart .308.
i've got a whole lot of .243 brass.
.308 brass seems pricy and difficult to find nowadays.
how hard is it to neck up the .243 into .308
the procedure is:
fireforming with a reduced charge(around one half of a standard load, like 25 grain varget), with cream of wheat filler and a toilet paper wad for a top?
i've never fireformed and i'll learn a new skill set..
 
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