45 2.1 -- We only make progress with the open sharing of ideas. That is the real purpose of this forum. Why wait for a PM to reveal your knowledge to one person? We would all like to know. Please be a good citizen and contribute to the forum by starting a thread on the principles of cast bullet design for high velocity. We have a lot of open minded members here who would be interested in such a thread.
That sounds interesting. Probably an excellent topic for another thread or at least a good definition of “dynamic bullet fit” for those not familiar with the term.
To avoid completely hijacking mtngun's thread please put your reply on one of the new threads that I hope you will start.
I read here about bullet fit.... a static (in rest) fit where most people use a hard alloy and touch or jamb a bullet into the rifling throat. These bullets are Loverin design or a common two diameter Barlow design type..... basically a cylinder with a nose on it that may or may not touch the rifling. As an alternate, we have John Arditos cone in cone throat that achieved some progress. I've noted the records, group sizes and test results posted on this forum. You guys could do a lot better! How?..... Well we're going to discuss that (that is if you all can keep from telling me I'm full of BS and ruining the thread).
I want to hear WHY you think you can't do better and or some good discussion on why you want to do better. Remember, this is John's request.