Hi Rick
I do belive that the caseseparations easaly can be cured, but as we found the high preasure to be a big problem and the fork was so badly bent that it wouldnt freely slide over the rails we stopped our experimentation.
However it's well known that smaller case capasity gives much higher preasure so the idea is not totally problemfree how ever you do it.
Using heavyer bullets in a 7,65x19 removes some of the idea behind the 7,65x19 and the recoil comes closer to 9x19.
The heavyer bullets will of course compensate for the loss in inertia to a certain extent.
A big part of our problems is very likely to be the heavy barrel, it was a 5" 20mm oktagon barrel and that is very different from a ligth barrel.
Regards HÃ?Â¥kan Spuhr
http://www.vapensmedjan.com