M1 in 270 Win ¿molds?

[TaylorS]

I picked up a M1 grand at a show a few weekends ago has a new 270 barrel on it. Looks like he put a new receiver on it as well since it’s newer than the rest of the gun.

He recommended jacketed for the hand loads but I don’t wanna pay .13$ a round for the bullets. I’ll probably nab a box or 2 just to break the barrel in but would like to know what y’all use for molds for your cast 270 win?

And what hardness for the alloy should I be shooting for? all of the cast I have done for rifles have been with my bp cartridge guns and they like em soft.


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[sigep1764]

I use the RCBS 270-150gr mold and the Lee 277-135RF. Any alloy from ww to a little harder will work from 1400 to 2100fps. Lower loads get Red Dot 10grains, faster loads get W748.

[TaylorS]

Thanks I went googling for molds and found there’s not much selection for this cal, that said I’ll have to keep a eye out for a used rcbs mold. But I’ll order a Lee mold and try to get started any particular gas checks to use or just some run of the mil .27cal work fine in these guns?


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[sigep1764]

Any check from homemade to Sages to Hornady. I found no difference in accuracy, go cheap as possible.

[Kosh75287]

Even with fairly conservative velocities, it's not impossible to overload the gasport and bend the operating rod, so exercise all due caution.

[7br]

If you are going to drop money on a mold, you might as well get a Schuster adjustable gas port

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