load development would be safe, starting 10% less of course. and 2800 flat is the goal, may have to switch to 185's but that's the goal. i thought the 280, was just a 30-06 necked down? so wouldn't the 30-280ai just be the same as a 30-06ai? correct me if i'm off.
and i don't like belted mag's as i've now been reading about the problems with the heads, and heard some personal accounts of case head problems.
anyway, thanx all for info, plz keep it coming!
Here is what I did. I had a 280AI build for the wife I'd picked up a donor was a new Rem 700 from Wal-Mart in 30-06 had a 24" barrel this action was going to be for my 280AI.
I haven't shot a 30-06 for about 20yrs and there was new data from Hodgdon for a load was max 60gr/IMR-4350 with 165gr bullet @ 2938fps. I decide to shoot the rifle and get same data and I worked up to that max load with 165gr bullets and I got 2940fps.
Instead of building a 280AI I did the 30x280AI with 26" long barrel again with that rifle I worked up to a max load of 60gr/IMR-4350 with 165gr @ 3074fps and in that rifle I went to 62gr for 3148fps.
So I decide what if I build a long barrel say 27" 30-06 what kind of velocity would I get so I had a 30-06 build with a 27" Lilja with 1/11 twist barrel and that max load of 60gr/IMR-4350 with 165gr bullet gave me 3105fps. I played around with H-4350 in that rifle and I could get with 180gr partition 2970fps. to me that rifle was better than the 30x280AI accuracy wasn't a problem and honestly I didn't shoot 180gr bullets in the 30x280AI. Now all this happen back in 2007/2008.
I never hunted with either rifle it just one of those thing you do sometimes. Myself the gain I got when I compared 30x280AI to the Lilja barrel 30-06 wasn't all than much and I decide I didn't want to waste anymore powder shooting the 30x280AI.
I have a new respect for the 30-06 I now shoot a 30-06 with a Bartlein 5r barrel @ 25 1/2" long
and that max load of 60gr/IMR-4350 give me 3066fps and my deer/elk load with 180gr Partition give me 2893fps.
We have a late season cow elk hunt end Nov 1st week Dec I like to hunt if I get drawn so had another 30-06 build used the 30x280AI action for that and the lilja barrel 30-06 action is now a 30-33mag.
I'm not sure why you don't like belt mag you can have them headspace on the shoulders instead of the belt that what I do.
I would buy some bullets you want to shoot and make up some dummy rds if you want I think I've still got some of those 30x280AI cases and you could see how the load density is and I may have a 300mag case just PM me your address.