Hi John
two different rifles (obviously), one is a non standard 22-250AI, the other (and not owned by me) a Savage mod 12 in 22-250.
I load the standard 22-250 with Varget, using 55g Hornady V-Max, my mate who owns the rifle says it performs well out to 250-300 yards, but given its a relatively thin profiled barrel and er,,,dubious quality synthetic stock thats about the rifles accurate limit.
Velocity is I recall 3300fps (but I would have to check)
The AI - well thats mine, I feed it RL22 and a diet of 75g A-Max.
Velocity - 3200fps and you can gurantee first round hits on anything out to 400mtr providing the wind isnt blowing too hard.
I have shot it at 1000yds, but accuracy wasn't great (it was windy)
At 100 mtrs, youre looking at a 5 shot pretty much one hole group sub half MOA.
I prefer to Ai version as it allows me to use more efficient bullets - that is reflected in all my bullet choices in all calibres I shoot where possible.