I’ve always wanted to use a thumbrest on my Open race gun but could never get it to work because the Safariland 013 holster I’m using doesn’t have the clearance for a thumbrest as I’ve mentioned in this post : Arredondo Thumb Rest
I had to distract myself from some personal issues so I decided to take my new Dremel to the holster and make it work.
Here’s how the thumbrest fits on the gun :
First cut with the cutting blade. Yes I know, VERY sloppy.
Another view :
Test Fit :
Smoothed out the cut, and added Birchwood and Casey’s Metal Polish:
Fully assembled :
Final Fit :
Looks like it works! Now I got to get used to using a thumbrest.
Here’s the finished 9mm Major top end that John from http://www.jplprecision.com built for me.
Just took some different 9mm Major recipes with me to test. They were :
- RP 9mm Once Fired Brass
- 124gr Montana Gold CMJ
- Winchester Small Rifle Primer
- 8.5 – 9.0 gr of Hodgdon HS-6 Powder
- OAL : 1.165
I started with a 8.5gr load and worked up to 9.0 but we didn’t need it. If you look at the chart below, even 8.5gr of HS-6 was wayyy over the required powerfactor.
John’s load is a 7.6gr Silhouette behind a 121gr IFP round.
The new KKM barrel is tight and very fast. Looks like I have to dumb down my loads to probably 8.2 or 8.3 gr of HS-6 powder.
Just head from John (http://www.jplprecision.com) that my new 9mm Major top end is done and ready.
here’s how it looked like while he was cutting it :
and the finished slide, top channel cut with 7 “Mitch” vents on each side :
The reason for all the cuts? To lighten the slide so it’ll reciprocate faster, while should lead to faster follow-up shots.
nice huh? Wait till I polish it!