Interesting reading Jim.. always. I've also enlisted Rick to make a mould for my 44 a few weeks back. The dimensions will be different.. possibly too wide at the base but I'm looking forward to giving it a try when the time comes. This will be my first base pour pp mould...so I'm going to have to learn to deal with a flat base. Cant hide my poor wrapping by curling it into the tail ! Looking at the Gibbs vs Sharps design he has on the website I can't help but feel the Gibbs actually 'looks', on paper at least, to be closer to the few Sharps bullets I've seen. So I went with a Gibbs profile/ ogive. While I'll certainly trial this bullet in the 1/19.. its being designed with the 1/17" twist in mind. 1.4 -1.42" long. .433-434 along the shank and .443-.444 at the base. I gather this will give it a more pronounced shoulder than your design.. but we'll see what happens. Case neck thickness varies a bit within the lots of cases I have at my disposal and I'm trying to get to a point where I don't have to size...or can get away with a 1-2 thou reduction only. This should give the cases maximum life span hopefully..although I've not had issues to date. Last weekend I finally trialled a new BACo. gg bullet of my design and fingers crossed..so far so good. Once again its a tad long for the 1/19" @ 1.435". but it appeared to hold up with very mild winds. It's coming out at 530 grains and courtesy of a Magneto speed chronograph that was on hand.. between 1280 & 1300 fps. This was my first shoot in six months...and that's just way way too long between shoot days. Interestingly enough.. I had some Brooks 485 gn Creedmoor loads with the same charge.. ie. 84 x Swiss 1.5... and they were clocking 1305-1324... so not a huge difference for 50grn more weight. Looking forward to the new moulds arrival and the chance to give it a work out.. Never enough moulds
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