Lee 309- 200 RN

[WinchesterM1]

I used to use the lee 309-200 sized to .310 over 35grn of imr4064 in my Garand, and killed a fair share of deer with my Garand. I now use the NOE311299

[Neverhome]

Finally had a chance to run this bullet through my 308. Rem 700P.

Only tested at 50 today. I’ll stretch it out next time out.

Ran 95/2/2 heat treated to around 24 for the IMR 3031 loads. Did a work up with 3031 from 22-28 grains. Best average groups were with 27 grains.
Ran same alloy not heat treated for the IMR 4198 and Unique loads. Zero work up or load dev on those two. Probably gains to be made if I put some time into them.
Two 3 shot groups per plate. No big whoop but first time with cast through this gun so I’m pleased.

[Texas by God]

That looks like some big whoop to me. I think you're onto something.

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[Loudenboomer]

I too have had good results with the Forester hollow pointer. Probably your best bet for expansion. Air cooled 50/50 will flatten a little with a flat sizing punch.