Universal .30 load

[ed h]

Rocky,
I read your article "The Universal .30 Load" on your website. I have loaded the 100 gr plinker bullet in my 30-30 since reading your reply to a post on Hunt Chat a few years ago. I think they're great! I have shared a few rounds with fellow shooters who also enjoy shooting them. I have two questions. Do you crimp the Speer Plinker bullets at all? If you used 115 gr cast bullets, would you use gas checks? I have considered buying a mold and casting my own plinking bullets (I already cast pistol bullets).
Thanks,
Ed