22-250 ai

[mikey1]

Picked up a cooper .22-250 Ackley improved and now in the midst of fire forming a collection of brass. Any reloading info greatly appreciated. I have had excellent results with 39.5 gr 760 powder and 50 gr V-max with the .22-250 itself, and would like to continue with this powder but definitely open to other options

[fps plus]

Your on the right track. Powders that work for 220 swift would be applicable to the 22-250AI

If you lightly oil the cases before fireforming , there is less case loss and they tend to form better. Don't forget to remove oil build up from chamber once cases are formed

[colroggal]

Load data for a 22-243 may be applicable.

Colin

[AlbertaAl]

My advise to develop a load for 22-250Ackley is use the high end of regular 22-250 load data and work up.
Using the 220Swift or other calibres isn't a good idea.
Virtually all factory 22-250's are made with a 1:14 twist.
If you have SAME twist then it's pretty easy load development but if you have a slower twist and want to shoot the heavies then it becomes complicated because of limited publicated loads out there.
You could use other shooters internet information as a guideline.
My 22-250Acklely with 1:9 Krieger likes the 69SMK and 69Scenar with H4350
Shoot slow - these are prone to increased barrel errosion from rapid fire.

[fps plus]

Make note I did not say to use load data from a 220 swift for 22-250 ackley , I said powders that work in the swift would probably work in the 22-250 ai

[mikey1]

Was sighting in the rifle while at the same time fireforming-not sure what velocities I am seeing with 39.5 gr of imr 760 and 50 gr V-max but at 100 yds-she was bullet hole into bullet hole!,thought this could not be true as never done this before ,so did it again and same result...now going to climb upwards a 1/2 a grain at a time with my imr 760(with a max of 43 grains) till accuracy go`s south on me !

[6.5 shooter]

mine loves 53gr.V-Max best BC and accurate'
30 grs. IMR 3031 CCI primers your results may vary!