I shot my N133 subsonic test today (03/13/24 since I forgot to date the spreadsheet). It was windy but the wind was from the south and I shot to the north. The pistol berms and trees around the range do a good job of blocking / lifting the wind to some degree. Aero Precision M5 upper and lower, Superlative Arms gas block, Geissele trigger, 12" Faxon round thing with rips and tears on the inside, and that's being nice. I shot the test with my Dead Air Primal installed.
Group size is below ES/SD on the Excel sheet. Group 1 and 2 had acceptable 100 yard groups sizes. 2 was real nice. I could have done better with a slingshot for the other 7 groups. I really think it's the barrel. I guess we'll see when I get the new barrel. Have I mention the barrel enough?
The Garmin didn't record 3 shots, which is annoying. It also negates two of the groups (4 and 7). Since they are lower velocity than where I want the round to be I'll get over it (I really won't). I'm still learning how to set it up so that's probably on me. I had some good ES values that, other than the first string, didn't produce good groups.
I didn't get to 1,100 - 1,110fps with this test. That was the goal. I expected to pass into low supersonic range and didn't get there. There were no pressure signs. I'll explore higher, probably 18.4 to 18.9. There were some decent ES's. There's big, fat node right in the middle but no groups to back it up. Again, I think a huge component of that is the barrel. We'll see.
This looks like a good alternative powder for subs. With any luck I'll get to test the bullet at subsonic velocities on a pig Friday or Saturday. If it doesn't do well I'll move on to something else for subs.
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