Don't know the size of the window but the Holosun 507C's are nice. I have one on a 45 degree mount on one of my AR-15's. Going to get another one for a Ruger 22-45 I'm having Jeff thread and put a 1913 rail on it.
Found some Sierra 69 gr. HPBT-Match bullets that I forgot I had. I can't remember loading any of them so I have no data.
Looking to load them for a 18" & 20" AR I have. Both are 1/8 & Wylde chambers. Both are rifle gas.
Thanks in advance
I got to know Ken at Second Chance. He shoot the pistol the year he, myself and David Hopper won the 3-Man Team Event and set the new 3-Man Team record of 4.3 sec.
Great man and very good shooter. I got to know him from shooting the Chevy Truck Sportsman Team Challenge. I finished second to him at the Inaugural USPSA 3-Gun Championship in May 1990. He came up to me after the match and put me on the guy that was building his 223 rifles. He will be missed.
How much are you guys cutting off your existing belt to add the racheting system?
BTW,,,, I have the one from Ben Stoeger Pro Shot, https://benstoegerproshop.com/competition-belt-ratchet-kit/