22-250 brass

[kaleh01]

I am looking to build a rem 700 22-250 for long range and coyotes. What I am wondering is whether or not improving this cartridge is worthwhile. In particular I am wondering if the amount of trimming I have to do now with my 50 gr 3800 fps load will be significantly less than the hopefully 3000 fps plus loads with 90 smk or Bergers? I have a 1-7 twist krieger to handle the heavies.

Any info is appreciated, also wondering if those utilizing the 22-250AI are mag feeding through 308 AI mags successfully and smoothly.

 

[explorin2]

I'm not intending to be a smart ass, just very curious for I shoot 22-250 (1:14 twist) and wonder what you mean by improving the load and what is long range?

From a physics point of view you will have more bullet drop will lower velocity. Theoretically, if you shoot at level (a horizontal plane) the time it takes for the bullet fired to hit the ground is equal to the time of that same bullet dropped by hand from an equal height. Meaning more velocity will give you lest bullet drop, excluding such factors as wind.

Regarding trimming, I assume you mean shell case trimming. My 2 beans ... there would be no significant savings in time. To actually trim a shell takes seconds ... its the checks and handling that are the time consumers in my opinion.

 

[kaleh01]

What I mean by improving the cartridge is a process called Ackley improved. If you are unfamiliar with this it is The straightening of the case body and altering the shoulder to 40 degrees to reduce brass stretch and increase case capacity.

I am looking to run this cartridge with a 1-7 twist barrel to launch 90 gr bullets at hopefully 3300. However, the increased velocity is not the reason for me choosing to improve the round. The lower case stretch is.

My idea of long range is to be able to shoot this cartridge beyond 1000 yards.

 

[dead meat]

Reduced case stretch is one of the supposed benefits of the AI case, give Mystic Presision a pm he does long range shooting with a lot of different cases.

 

[Eagleye]

When you improve the 22-250 case, what you essentially get is a 220 Swift.
The brass does not tend to stretch as readily as it does in cases with substantial body taper. [22-250, 220 Swift, 6.5x55, etc]

Still no license to overload the case, of course.
You should get about 4000 or so with 50's at safe pressures with the AI case.

I have not shot any 90 grain bullets, but other experience leads me to believe that 3000 is very do-able with the right powders.

That 1-7" twist will spin some bullets to pieces, so you may have to choose lighter bullets carefully.
Regards, Eagleye.

 

[explorin2]

What I mean by improving the cartridge is a process called Ackley improved. If you are unfamiliar with this it is The straightening of the case body and altering the shoulder to 40 degrees to reduce brass stretch and increase case capacity.

I am looking to run this cartridge with a 1-7 twist barrel to launch 90 gr bullets at hopefully 3300. However, the increased velocity is not the reason for me choosing to improve the round. The lower case stretch is.

My idea of long range is to be able to shoot this cartridge beyond 1000 yards.

Interesting ... thanks for info ... I learned something today

 

[explorin2]

What I mean by improving the cartridge is a process called Ackley improved. If you are unfamiliar with this it is The straightening of the case body and altering the shoulder to 40 degrees to reduce brass stretch and increase case capacity.

I am looking to run this cartridge with a 1-7 twist barrel to launch 90 gr bullets at hopefully 3300. However, the increased velocity is not the reason for me choosing to improve the round. The lower case stretch is.

My idea of long range is to be able to shoot this cartridge beyond 1000 yards.

Interesting ... I learned something ...thanks for explaination

 

[albertacoyotecaller]

I have a barrel in 22-250 with a 1-7" twist I am planning on AI so I can throw some heavier bullets. That is the only reason I see to AI it but that is just me. Need more speed, there are other options out there.

Greg