260 AI on a Long Action

[Londerko]

So, I wanna build a 260AI rifle that will also be used for hunting. I was thinking about building it on a long action, that way I could load 140vlds or amaxs out to the mag length of 3.4" and it would still be a repeater. Also, I would probably have the throat cut long so bullet wouldn't be touchig the lands until 3.3-3.4".
This combo seems like it would have CRAZY case capacity and yet still be a repeater and good brass life since it's an ackley.
Am I missing something? Anyone ever done this setup? Any info or pointers would be greatly appreciated.
-Leo

[LoneWolf]

You'll most likely have feeding issues from the mag due to the shoulder angle of the AI. That's why I'm building a 6.5-06 A-Square. Just waiting for the stock to come back from CDI now.

[varmint72]

For the long action go with the 6.5-06imp it will feed better and give a little more velocity.

[Luke45]

You'll most likely have feeding issues from the mag due to the shoulder angle of the AI. That's why I'm building a 6.5-06 A-Square. Just waiting for the stock to come back from CDI now.

no you wont

[Londerko]

What is the difference between a 6.5-06AI and a 6.5-06A-squared? Does the A-squared mean something or is it just a 6.5-06?
My whole idea behind putting a short action case in a long action is so I could load bullets VERY long and have it still be a repeater and increase case capacity. Why would a 260AI feed poorly and a 6.5-06AI feed well?
Are your guys' 6.5-06a-squared and 6.5-06AI repeaters? Are you able to load your bullets to the lands and still have them fit in the magazine? That's what I'm going for with this build.
-Leo

[LoneWolf]

6.5-06 A-Squared is the standard shoulder. I made a dummy round at 3.4 COAL and it loads into a modified AICS 300WM type magazine

[Londerko]

That's funny, why not just call it a 6.5-06?

[LoneWolf]

Because A-Square is the company that got it SAAMI certified.

[Luke45]

lonewolf im guessing you haven't ever owned an ackley have you? look most modern cartridges, they all have "ackley" type shoulders, WSM, RUM, ect

*correction, 30-35 degrees vs ackly 40 degrees

[LoneWolf]

I haven't, but many don't run AI type variants because of feeding issues. WSMs and RUMs are a different story.

[Londerko]

Gotcha, I'm still gonna go with the Ackley Shoulder though, lots of benifits. Either way it will be a 260AI or 6.5-06AI.
My question wasn't really to argue the merits of the ackley shoulder. It was more about the "short case in a long action" concept

[Luke45]

i own 2 ackleys and never had a feeding problem, 280 and 22-250. and with a 260 AI seated out far the long bullet will guide the case into the chamber.

and plus haveing non sammi spec cartridges is fun

[Luke45]

you dont run AI's becaue of feeding problems and you have never owned one?

i dont like oranges even though ive never tried one becasue somebody said they tasted bad

[Londerko]

Thanks Luke,
I'm guessing a 260AI with a long throat and 140's loaded to the lands at 3.4 would have preformance close to a 6.5-284 and better than a 6.5-06 squared

[Luke45]

honestly between the 3 cartridges its probably a wash. a 140 around 3k fps

[Londerko]

That's what I'm going for

[Luke45]

i would never own a 6.5-06 though for safety reasons. when you have freinds that shoot 270's 25-06's and 30-06. if your neckin up 25-06 or necking down 30-06 ect you could very easily interchange them on accident becasue of the case stamps. Unless the 6.5-06 headpaces different like the 280?

[LoneWolf]

Uses standard 30-06 gauges.

[Londerko]

It's a SAAMI case, so factory brass and ammo are probably available. or neck up or down other head stamped brass is my guess

[sharpshooter]

lonewolf im guessing you haven't ever owned an ackley have you? look at all modern cartridges, they all have "ackley" type shoulders, WSM, RUM, ect

Ackley shoulders are typically 40 degrees, WSM's are 35, Rum's are 30. Nobody I know of is commercially making any calibers with a 40 degree shoulder.