22-250 AI Loads??

[ewspears]

I'm in the process of setting up a 22-250AI Long Range PD Rifle. It is a 40X, 2 oz trigger, 8-32 NF Scope, and a Kreiger 28" 1:9 Barrel with .254" No Turn Neck. I am going to shoot Hornaday 75 gr AMAX Moly's in it.
Hoping to get some advise on best powder and weight for accuracy and velocity.
Thanks for any Help!
Esten Spears

 

[mikeinct]

play with the 60 grain v-max....i think u will like it,you can keep the velocity up there & get about 100 extra yds of real whoomp factor..If my calculations work out correctly The performance I expect from a reg 22-250 should be extended to 500 yds ..I just had a standard 22 250 barrel made to stabilize that bullet with a one in 12 twist....stick with IMR 4064 or Varget.I'd give H 380 a go also...mike in ct

 

[ewspears]

Mike,
Thanks for the response but what you're talking about is what I'd call a mid range PD Gun. I've got a 22 PPC with No Turn neck for that service.
This 22-250AI is for beyond 500 yds. Hence the 75gr Amax with .440 BC and the 9 Twist Krieger. I've got plenty of experience loading a straight 22-250 with 12 to 14 Twist Bbl. and 50 to 60 gr Bullets.
I have no experience with a 22-250AI with 75gr Bullets!

 

[Wild_Bill]

Hi i have just tested a 22-250AI with projectiles frpm 55 to 90gr. The best data for the 80gr Sierra was a CCI BR2 primer Remington cases 41gr H4831sc at 3292fps in a 30" barrel 7 twist. I tried fireforming some factory Winchestor ammo and i split every case byt out of 150 Rem cases no problems at all. You could also go to H4350 but i found this load to be very accurate and have a low es and sd. I also have a 14 twist take off barrel that i chambered so i can fireform ammo in it first and then do not over wear the barrel but if you dont have one use the max load of H4350 for a 22-250 and a 75gr projectile and fireform at 500 yards while busting some pests.

Cheers Bill
Australia

 

[Preacher]

You will flat out fall in love with that 75 grain A-max bullet in your 22/250 Ackley.
My 26 inch Pac-Nor SSSM 1 in 9 shoots them like little lasers at 500 yards using 37.5 grains of H-4350 and Federal 210M's.
I do need to turn the necks down a little but that don't bother me at all.

 

[ewspears]

Preacher and Wild Bill - THANKS! That's exactly the kind of info I was looking for!

Speaking of Fireforming; I am planning on doing the same I do for my 6PPC Just fill the primed 22-250 Brass with Unique Shotgun Powder and plug with candle wax and fire. It doesn't do as good a job as a full load with a bullet but should be great for hunting rounds. Any Comments Welcome!

 

[shcal]

Esten: I have a 22-250 AI 8" twist for shooting little critters. I shoot 80gr smk's over 37gr of H-4350 and it punches nice holes in them. The other great bullets to try are the 65gr V-max, they just blow them up. I have also tried the Swift Sirocco 75gr. These are a little tricky given their length, you need a fair amount of free bore. But they shoot well in my gun and they are VERY explosive.

Also, I never fire form with anything other than a full load and a bullet in the pipe, why waste the time and the powder? Accuracy is still fairly good.
shcal