Can I make 243 brass out of 260 brass?

[GrayCreed]

I just bought a 243 and would like to get some match brass I have about 100 FGMM brass and I like Fed brass but an LGS in my area has Lapua SRP 260 brass. I like the idea of having some SRP brass if I could neck it down. What else might be involved besides necking it down. Would I have to neck turn?

Appreciate your information and opinions.

Joel

 

[LongBomber]

Easy neck down, it is a pretty small step down in size. I don't think you would have to neck turn with that small of a step.

 

[milboltnut]

after forming it, and trimming it to length, see if it chambers. Make sure it has enough headspace and max trim to be on the safe side, that may fool you. You may need to neck turn to chamber it ok.