Drilling Guy,
You can very easily load ammo for your drilling, this would also extend your enjoyment of it. Dies and .257" dia. bullets are readily available. Cases for 25-35 Win. may be "seasonal items" if available at all. It is only necessary to full length size very common 30-30 cases, and check for rim fit, to make perfectly useable 6.5x52R/25-35 Win. cases. If you would like to do this, several on this site will be happy to help you.
Mike