I wouldn't cut a barrel back to 18-20" if you are going to re-chamber to an ackley. Even though most testing shows that barrel length doesn't affect velocity as much in smaller diameter compared to larger; the juice wouldn't really be worth the squeeze I don't think. Keep the barrel length when you re-chamber and let it rip!

I'm gonna go with a 1-7 and order it next week, hopefully they're back in stock!

I'm with JG on this one-- I just wanna go fast! The question was asked earlier- why 90gr on varmint? Well there is kill that is quite like overkill--- quote an A10 pilot that dropped a bomb on a single enemy!

I get why you wouldn’t cut it to 18” but with a 9” can on the end of a 22” barrel it’s very long. 4” shorter and it might be able to ride on my console. Plus I want to cut it back anyway so why not gain some FPS while I’m at it.

For the purpose I can understand cutting the barrel back for a suppressed truck gun for sure. I just the think the velocity differential at that barrel length might not be the best bang for the buck for the cost of rechamber, new dies, fireforming. But I like to go fast so I'd probably still do it and it is fun to tinker with something new too!

Any of you have have a 22-250ai do you have specs or print of the reamer used?

I've head some suggestions on going with a longer throat for the long, heavy bullets to maximize case capacity

Don't forget to take magazine length into account.

Absolutely! My math showed that I could still get a ~1.2" bullet into a standard short action box.

The reamer print Ive seen specific for a 22-250ai showed what seemed to be a short throat. With a long bullet that would mean seating deep into the case and reducing powder capacity right?

Just curious what guys have done about that or how it is done? Provide a dummy round and the smith just reams a longer throat? Is just a throat reamer used for that after the chamber is cut? I'm way outside my comfort level but very curious as to the actual gunsmithing process behind it.

^^ You are on the right track. I'd make a dummy round for your smith. A lot of the times smiths will use a throatless reamer, then come in with a throating reamer.

You will want the bullet seated out a little bit if the standard AI reamer has a short throat (if there is a standard for the AI reamer). How much depends on your mags and where the bullet sits at the case neck. Calculate this and load up some dummy rounds for your smith.

Thanks, working on a list of questions for the gunsmith so I don't keep going back with more! I haven't been able to dig up a whole lot of info on 22-250ai reamers. The print I found was off reamerrentals.com. Seems like it was set ups for the small pills for sure.

Just want to make sure I measure twice and cut once right?

Exactly. Know which reamer the smith uses, and get the specs on it. You are at the part of the planning phase where all the questions come up. This is why I coordinate builds for my customers, to plan out the exact specs on the rifle that we want for the ammo we plan to run. It takes a lot of planning and knowing about rifle builds and parts.

Regarding barrel length, when I was on the search for a 220 Swift many years ago, I found a tang safety Ruger 77V with a 20 inch fat barrel. The cowboy I bought it from said he had it cut from 26 inches to 20 inches so that it would fit on top of his truck dashboard so he could grab it quick when he saw a coyote. Well, I didn’t have a truck back then, but I still grew to love the short handy 220. When the barrel was worn out, I went with another 20 inch barrel. I never have missed the small decrease in FPS.

Bartlein 1-7, Rem Sendero Contour ordered. HS Stock, action and Timney are in hand as well.

A little late, I know...took me a while to locate this photo. This is what I think a varmint bullet should do---at a minimum.

There is no kill like overkill!!!

Rudy FYI they told me at APR that the .22-.250 mimics the .22 Creed....

So many choices!!! I think it boils down to fireforming 22-250ai or necking down 6CM brass to 22CM because I haven't seen any available headstamped 22CM brass.

I'm liking the idea of getting good Lapua 22-250 brass and fireform/hunt with it right off the bat.

I don't believe the .22-250 mimics anything at all. Except maybe the .220 Swift. That's a pair that has been mimicked plenty.