LiveLife
Member
While posting for another thread, I realized I forgot about this Promo thread. I tried to update the Promo range test thread, but the forum rule won't let me.
So, starting a new Promo thread to continue posting my range test results (Here's the old Promo thread you can refer to).
To bring you up to speed, my Promo testing went well for 9mm & 40S&W using various jacketed, plated and lead bullets but had issues with the initial 4.0 gr load with 200 gr SWC. I figured out what was happening with the PT145's shot groups with the lead loads. Turns out the bore was slightly oversized and the light 4.0 gr load was not properly bumping (obturating) the bullet base (and that's why the 5.0-5.5 gr W231/HP38 loads were shooting fine). I ended up ordering a good stock of 12 BHN SWC so I am good for testing light loads again.
My pursuit back to a 1911 with CA legal Dan Wesson Pointman 7 was temporarily put on hold with 200 units/year production limit ... darn ... but wife got me a S&W M&P45 for Christmas to ease the pain.
With the .451" bore size of the M&P45, 4.0 gr of Promo with .452" sized Missouri 18 BHN 200 gr SWC did much better:
45 ACP average shot groups:
200 LSWC/4.0 gr - 7 yard 3/4" - 10 yard 1" - 15 yard 2" - Mild recoil
At 7 yards, this load kept producing single hole shot groups. Below are pictures of average 10/15 yard shot groups. This load has become a favorite of my wife due to mild recoil and good accuracy (the small grip insert for M&P45 fits her hands very well). I hope to continue with more Promo load testing with bullets/powder charges I specified earlier in the thread.
So, starting a new Promo thread to continue posting my range test results (Here's the old Promo thread you can refer to).
To bring you up to speed, my Promo testing went well for 9mm & 40S&W using various jacketed, plated and lead bullets but had issues with the initial 4.0 gr load with 200 gr SWC. I figured out what was happening with the PT145's shot groups with the lead loads. Turns out the bore was slightly oversized and the light 4.0 gr load was not properly bumping (obturating) the bullet base (and that's why the 5.0-5.5 gr W231/HP38 loads were shooting fine). I ended up ordering a good stock of 12 BHN SWC so I am good for testing light loads again.
My pursuit back to a 1911 with CA legal Dan Wesson Pointman 7 was temporarily put on hold with 200 units/year production limit ... darn ... but wife got me a S&W M&P45 for Christmas to ease the pain.
With the .451" bore size of the M&P45, 4.0 gr of Promo with .452" sized Missouri 18 BHN 200 gr SWC did much better:
45 ACP average shot groups:
200 LSWC/4.0 gr - 7 yard 3/4" - 10 yard 1" - 15 yard 2" - Mild recoil
At 7 yards, this load kept producing single hole shot groups. Below are pictures of average 10/15 yard shot groups. This load has become a favorite of my wife due to mild recoil and good accuracy (the small grip insert for M&P45 fits her hands very well). I hope to continue with more Promo load testing with bullets/powder charges I specified earlier in the thread.