Kimber Montana and Ascent 280AI....what load??

[Elkwonder]

I just bought a new 280AI and will start reloading for it, but need a starting point????
What grain do these guns like best with their 9.5 twist rate? I am hoping to use the 150 ls Acubond??? Thought??

 

[el matador]

http://www.longrangehunting.com/forums/f28/280-ackley-load-data-25278/

.280 Ackley @ www.reloadersnest.com

280 Remington Ackley Improved Load Data

I've never loaded for 280AI but these links should get you started. I like Hodgdon powder, H4831SC would be my first choice.

 

[KurtB]

Think I would have to try a 168 Berger Hybrid in that.

 

[MudRunner2005]

I just bought a new 280AI and will start reloading for it, but need a starting point????
What grain do these guns like best with their 9.5 twist rate? I am hoping to use the 150 ls Acubond??? Thought??

Once you have some fire-formed cases, try IMR 7828 SSC behind a Berger 168 with a Federal 210M primer. Start low and work up. You should get some good velocities out of that combo. I use that powder in my .25-06 AI and .30-06 AI, and it works well for me.

 

[Elkwonder]

Thanks to all and please keep them coming.....

 

[Elkwonder]

I should have also added that I live in North Dakota and will be shooting across a HUGE temperature range, so I would like it to be as temp stable as possible. Thanks

 

[Maxxis31]

168gr Berger VLD
63gr Retumbo
Formed Norma .280 Brass
CCI BR2 Primers
3.410 OAL
.010 off the lands

I am getting about 2940 fps at 4500 feet.

 

[B-P-UU]

168gr Berger VLD
63gr Retumbo
Formed Norma .280 Brass
CCI BR2 Primers
3.410 OAL
.010 off the lands

I am getting about 2940 fps at 4500 feet.

What is your barrel length?

 

[BEEMAN]

My Cooper likes 58.5 gr of H4831 with the 168 classic hunter. 2880 fps with a 24" barrel.

 

[ramrod79]

I used 58 GR 4831sc and 168 Berger classic hunter Fed 215M was a half inch load in my Montana but my Montana was a 1-9 twist .