Where to start with 280 AI

[Chupacabra]

Long time lurker, first time posting-

I’m picking up a Kimber Hunter in 280 AI tomorrow from my LGS. What are you guys using in your 9 twist that you are having good results with and what speeds are you seeing? My first time with 280 AI. TIA

 

[handwerk]

145 LRX/RL 16 3050 FPS. in 23" barrel.

 

[6.5Express]

Kimber subalpine here. 145 lrx and H 4831 @ ~3075 has made many dull havalon blades.

 

[SloppyJ]

Around 59gr of 4831sc with 160 partitions. That shot best out of virigin brass. Might have to back it off just a bit once fired formed.

 

[EdP]

I like 160 ABs or 160 GKs with IMR 4831. Had to back the powder down a bit with the ABs vs the GKs. Nosler has published load data on-line. I like the IMR 4831 just fine but would have used H4831sc if I had a reliable supply when developing loads.

 

[bigunit]

Mine seems to like imr7828 and sierra 165tgk. It's a 8.5 twist and also shoots 168lrx and 180eldm quite well. Haven't tried much lighter bullets yet.

 

[Chupacabra]

Thanks- looks like 4831 or 4831SC
is the place to start. I’ve got both on hand.

 

[Chupacabra]

Kimber subalpine here. 145 lrx and H 4831 @ ~3075 has made many dull havalon blades.

What made you decide on the LRX? Was it just the penetration bullet to game performance or was it accuracy?