280 AI 150gr Badlands bulldozer 2 results

[Teekerguy]

Finally made it to the range to work up a ladder tests

280 AI , 23" bartlein barrel spun up by Shaen rifles

Power-H4831
Brass-lapua---necked down from 30-06
Primer-CCI250

55.5--2649
56.0--2708
56.5--2720
57.0--2752
57.5--2764
58.0--2793
58.5--2815
59.0--2850
59.5--2882
60.0--2859

Will be conducting seating depth tests next once weather clears no pressure signs at all fwiw

 

[Koda_]

Could that velocity spike at 59.5 grains be considered a pressure sign?

 

[Koda_]

Could that velocity spike at 59.5 grains be considered a pressure sign?

I accidentally posted twice, glitch from phone i think.

 

[Teekerguy]

Could that velocity spike at 59.5 grains be considered a pressure sign?

I accidentally posted twice, glitch from phone i think.

I don't think so primers weren't flat no Heavy bolt what so ever no extractor marks at all

 

[Mark37082]

Interesting. I've been thinking about the BD2 as a possible pill to try in a 280AI. I'm running an 8 twist in a 24" barrel. Peterson brass and most likely H4831SC with CCI BR2's will be in the mix. I would love to get 2900+ fps with good accuracy with the BD2. I guess I need to quit thinking and place an order.

 

[Teekerguy]

I think 2900+ is very possible

 

[BEEMAN]

Thanks for the report. Wonder where R26 would get you? I also run a 23" barrel 280AI, but have not tried the SBD2.

 

[Teekerguy]

Thanks for the report. Wonder where R26 would get you? I also run a 23" barrel 280AI, but have not tried the SBD2.

From my old rig it added about 100-150 fps more depending on bullet but living in Northern California it can be HOT during rifle season and I've had RL26 spike in the heat so in playing it safe with the h4831 and I've always had better groups with the h4831 just with my experience

 

[BEEMAN]

Makes sense. No worries with R26 here in Manitoba. I never shoot above 75 degrees. But do hunt as low as -30!! I used H4831 in my Cooper 280AI with 168 Berger's. It's a great powder.

 

[Teekerguy]

Makes sense. No worries with R26 here in Manitoba. I never shoot above 75 degrees. But do hunt as low as -30!! I used H4831 in my Cooper 280AI with 168 Berger's. It's a great powder.

Yeah man RL26 should treat you well I was able to get 2800 fps with the 180eldms out of a 24" tube with my old 280ai

 

[SnakeRiverEric]

try rl23, 58.5gr 210M yields 3080fps out of my kimber 280ai mtn ascent with 160gr mcguire ballistics copper rose bullet 24" barrel. Sorry to hijack thread. Good luck.