I am thinking outside the box a little on this one. I am trying a few ideas I have had rolling around in my head and we are gonna see how it shoots and how different combinations affect the shootability. This will be a USPSA open gun in 9 major when it is finished. I am going to build it in a couple different configurations and probably with two complete top ends. I won't quite divulge exactly what I am doing just yet as that will come as this thread moves along. So on to the build...
I am starting with an extra wide and extra heavy frame on this build. That will be coupled with what starts out as a government slide from Tripp Research. This top end is being built on the prototype KKM hybrid commander length threaded barrel with .355 short chamber. I will probably build another top end on a similar barrel that is not quite government length. Compensator used for testing/evaluation will be the 9/38 comp from Binary Engineering. At this point, testing will be mostly subjective with some slow motion footage for flip and return to zero after recoil.
Here we go......
Frame and slide have been fit. Both have been cut on the surface grinder (love that piece of equipment). This is literally right off the surface grinder and two or three strokes with a stone to deburr edges.
Here is an in progress shot of cutting the slot in the slide for the island barrel.
And here is a shot after the island cut.
Barrel has been fit and slide has been cut back to the end of the island plus a .003" clearance for comp.
Weight of the slide prior to any lightening
I am starting with an extra wide and extra heavy frame on this build. That will be coupled with what starts out as a government slide from Tripp Research. This top end is being built on the prototype KKM hybrid commander length threaded barrel with .355 short chamber. I will probably build another top end on a similar barrel that is not quite government length. Compensator used for testing/evaluation will be the 9/38 comp from Binary Engineering. At this point, testing will be mostly subjective with some slow motion footage for flip and return to zero after recoil.
Here we go......
Frame and slide have been fit. Both have been cut on the surface grinder (love that piece of equipment). This is literally right off the surface grinder and two or three strokes with a stone to deburr edges.
Here is an in progress shot of cutting the slot in the slide for the island barrel.
And here is a shot after the island cut.
Barrel has been fit and slide has been cut back to the end of the island plus a .003" clearance for comp.
Weight of the slide prior to any lightening
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aaaay to busy to update this thread, but much progress has been made. The whole concept behind this project is to maximize non-reciprocating weight while minimizing reciprocating weight. This is done all the time on raceguns to facilitate flatter shooting. This project is attempting to take that to the another level. Many things have been done across the industry to try to take advantage of this. Tungsten barrel sleeving, island style barrels, sight blocks, etc. My spin on it is to combine a couple techniques. Nothing really earth shattering new here from a proprietary standpoint, but as far as I know or can tell, no one has tried to add a sight block to a island style barrel. Other than adding weight, there is no reason to. There may be a reason no one has combined a sight block and hybrid barrel....it may not work LOL. It just might be too much weight in the barrel to get reliable function. 
