180 grain Rim Rock Standard Hard Cast + Power Pistol

[radiotom]

Loaded up some 180 grain Rim Rock Standard Hard Cast FN BHN 15 + 8.3 grains of Power Pistol in once fired DoubleTap and Underwood brass and WLP. Had to veto lots of brass with smilies before loading these up...

No pressure signs. Decent amount of lead in the bore of my KKM barrel. Glock 20SF, factory recoil spring. COAL: 1.244 - 1.247

27 F
4600 elevation
60% humidity

Average: 1206
High: 1233
Low: 1178
SD: 14

Planning on using this for my target load to compliment my Gold Dot carry load that I finished over the weekend. Might throw another .1 or .2 grains of Power Pistol in there though...

By the way, shooting my own handloads over the last few days is the longest I have gone without a failure using the factory recoil spring since acquiring my Glock 20. Makes me wonder if I shouldn't have ditched that Gen 4 for the SF. 

[The_Shadow]

They have made some changes to the Gen 4 models for better reliability, to include a different Magazine follower

[radiotom]

I have those #4 followers in all my magazines. Was that the only change?

By the way I just loaded up some 8.5 grain PP and 1.251-1.254 OAL 180 grain lead target loads. I'll shoot em tomorrow and report back.

[redbaron007]

I have those #4 followers in all my magazines. Was that the only change?

By the way I just loaded up some 8.5 grain PP and 1.251-1.254 OAL 180 grain lead target loads. I'll shoot em tomorrow and report back.

Depending on the manufacture of your gun, the RSA was also changed. Here's the link; http://us.glock.com/customer-service/recoil-spring-exchange   .

[radiotom]

8.5 of Power Pistol yielded:

Average: 1244
High: 1259
Low: 1222
SD: 10

I'm liking this load better than 8.3.