Hard Cast Options that Underwood might be able to use?

[Intercooler]

That looks neat. Can that Company be twisted into supplying something like this?

[The_Shadow]

took a 220 rim rock and filed it down

start weight 219.3gr
start length .7350"

end weight 209.2 gr
end length .7015"

start meplat - .2700"
end meplat - .3000"

It looks like you took some from the top and bottom? 

[MrRedbull616]

had to just enough off top to bring meplat out to .3000 and then on the bottom to lighten the weight.

So you have a shorter bullet and lighter bullet = faster with a wider meplat but not too wide like .32ish like double taps...well that is my opinion of course.

well im sure rimrock would do it if there were enough bullets to be ordered. Obviously the lube ring would be moved up a little. ie. likely .03 higher.