I submitted some sample bullets made off of a modified 311291 Ideal mold. Because my modified mold is a single cavity, I submitted some sample bullets to NOE for design and cutting a multi cavity mold. Al added a gas check version which I am convinced should work very well in a 300BO as well as other rifles. I originally modified the mold because it was toast in the base area. I found it works very well in my wildcat 30 Badger guns. I also asked him to add a .150" meplat to the design to make the bullet a bit more tubular magazine friendly since I also shoot it in my 32-20 Marlin.
If anyone is interested, the sign up for the design is on NOE's forum. You can see the design at the same place. Look see here:
http://noebulletmolds.com/smf/index.....html#msg21680
Thanks for looking.
Edd