The 22 creedmoor thread

[Aussie Dan]

I’m waiting on my .22-250 Tikka 1:8” twist to get back from having a new stock made, but I plan to shoot the new 88-grain TMK in it. I intend to shoot that barrel out before I switch to 22 Creed (or something similar).

Based on what Form wrote about the 1:8” and the new 88-grain, I expect it will work well. But, if not, the 77-grain will be just fine.

Brilliant, thank you. I'd be more than happy running the 77tmk based on the carnage I've seen it cause on here. Only going to be for smallish game anyway.

Gotta add that to the project list now

 

[43.6N]

If a guy was wanting to re chamber a 22-250 1/8 twist tikka to 22 creed, at what projectile weight would the 1/8 twist be a hindrance?

Im around sea level, so no altitude issues to factor in.

Buy a box of the 88’s and just see how they do in your rig. If they shoot great, go forth and prosper. If they don’t, here’s your backup:

77tmk with 39-40gr H4350 (ADI AR2209 is the aussi equivalent I think?) will be perfect for a 1/8” twist barrel.

My 16 inch barrel shot this 22 creed load exceptionally well. 3050-3100fps.

 

[Nine Banger]

If a guy was wanting to re chamber a 22-250 1/8 twist tikka to 22 creed, at what projectile weight would the 1/8 twist be a hindrance?

Im around sea level, so no altitude issues to factor in.

I'm at sea level too.

Factory barrel that is kaput:

77gr Bullets:

22-250:

36-36.5gr H4350 2.480 OAL 77gr TMK 3093fps

 

[NoDakhunter]

I’m waiting on my .22-250 Tikka 1:8” twist to get back from having a new stock made, but I plan to shoot the new 88-grain TMK in it. I intend to shoot that barrel out before I switch to 22 Creed (or something similar).

Based on what Form wrote about the 1:8” and the new 88-grain, I expect it will work well. But, if not, the 77-grain will be just fine.

Form just stated 1:8 is not adequate at lower DA’s. He said 4k is fine but they don’t know exactly where the threshold is.

 

[Q_Sertorius]

Form just stated 1:8 is not adequate at lower DA’s. He said 4k is fine but they don’t know exactly where the threshold is.

Where? I thought that was at lower velocities?

 

[NoDakhunter]

Where? I thought that was at lower velocities?

88 TMK loading thread.
Post in thread '88 TMK Loading Thread '
https://rokslide.com/forums/threads/88-tmk-loading-thread.443931/post-4630583

 

[Nine Banger]

Makes sense. It's obvious from dope charts that elevation increases stability.

But that elevation correlates to internal ballistics and stabilizing is interesting.