Purchase 100 of the bullets and follow load data for cast lead bullets, not jacketed. See how they perform...If you are satisfied then order a bunch . If unsatisfactory....go to plan " B ".
All the discussion in the world will not answer your question...using the correct load data then burning a little powder will give you the answer .
I've shot cast lead bullets for over 50 years , using cast bullet data (Lyman and RCBS ) with no problems and great accuracy.
I have even won several trophies (NRA Bullsey Match) with cast bullets.
Give it a go but use the correct load data for cast bullets.
Gary
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