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Author Topic: 30-30 AI  (Read 638 times)

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Offline okie44

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30-30 AI
« on: January 25, 2012, 06:54:55 AM »
I'm thinking about reaming my super 14 to 30-30 ackley imp 40 degree, anyone shooting this? What can i expect to gain?
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Offline Ranch13

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Re: 30-30 AI
« Reply #1 on: January 25, 2012, 08:03:44 AM »
I don't know that you'ld gain much but muzzleblast and flash going the ai in the contender.Would maybe be a good choice in the carbine barrel.
With the Marlin I AI'ld, I can easily get up to 200 fps more with 150's and about 150 fps with 170's, but the trick to making the AI work like it should is going with slower powders.
If I were to do another one, I would work up to the maximum loads with slow for the cartridge powders, rl 15,4320,H414 etc , and then after the reaming got done start with those maximum loads and work up about 2 grs, or watch the chrono and when you hit 200 fps over (if you do) stop right there.
You're basically not working with a 30-30 anymore, you're more closely resembling a rimmed 300 savage.
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Offline okie44

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Re: 30-30 AI
« Reply #2 on: January 25, 2012, 08:19:04 AM »
Makes good sense to me, goal in mind is to shoot 175-190 gr cast at modest speed, little extra powder capacity keep velocity up not psi. I have read a lot of claims of velocity that had to come at higher psi than normal.
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Offline Ranch13

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Re: 30-30 AI
« Reply #3 on: January 25, 2012, 08:35:32 AM »
Well yes and no. When you fireform the case to the 30-30ai, the taper is gone , it has a sharp shoulder and short neck, so you've changed the way powders will react, so it is possible to grow some velocity without major increases in pressure. I would suspect tho that the pressures of the ai would jump to around 40-45psi. I'ld someday like to get the RSI pressure trace so I could see some pressure data. There's been a couple of folks over the last 10 years that were going to do pressure data on the ai, but if they did it I've not seen it anywhere.
 The AI cartridge is on the far right.
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Offline shot1

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Re: 30-30 AI
« Reply #4 on: January 25, 2012, 12:18:45 PM »
Out of a 14" barrel 30-30AI you can duplicate the velocity and exceed it slightly of a 30-30 Rifle with a 20 to 22 inch barrel. I love my 14" 30-30AI I shoot 125 Nosler ballistic tips at 2670 fps average velocity and it is a tack driver. This load will put the smack down on a deer. I have killed 7 deer with it the past two seasons  an only two have moved out of their tracks and they did not go over about 3 jumps. I use 33 grs IMR 4198 with the 125 BT in WW cases and Wolf LR primers. No pressure signs at all and the cases last FOREVER. I would suggest that you start with brand new 30-30 cases or just purchase some WW factory 30-30 ammo and shoot it for practice in your barrel to fire form the cases. I found that when I used cases that had been fired even once in a regular 30-30 chamber when I fire formed them in the AI chamber I got some split necks.
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Offline okie44

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Re: 30-30 AI
« Reply #5 on: January 25, 2012, 01:26:44 PM »
Thanks for the info, got about 150 new ww cases to start with, got the reamer in hand, get some dies coming i'll be set. Let you know how it goes.
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Offline shot1

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Re: 30-30 AI
« Reply #6 on: January 26, 2012, 01:32:00 AM »
Lee makes a GOOD set of dies for the 30-30AI cheaper than anybody. I have been using them for 3 years now with no problems.
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Offline Hopalong7

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Re: 30-30 AI
« Reply #7 on: January 27, 2012, 02:23:59 AM »
    +1 on the Lee dies...mine work fine.  Another +1 on the 125BT's....out of my S-14 30-30AI they are a match made in heaven 8) .  In the Contender (or any other break-action) the major concern is usually the force on the standing breech.  Mr Ackley's design was made to reduce this force 8) .  While the increase in performance is welcomed, it is far from the only reason to consider rechambering...less breech force...better case life...better accuracy ??? ::) (well, supposedly)...easier to head-space with the sharp shoulder,...AND, most of all...it just makes a cool 8)  looking cartridge out of the ol' warhorse ;D .  I'd just do it and never look back ;D .  Good Luck...you'll love it!
Walt
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Offline larry223

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Re: 30-30 AI
« Reply #8 on: January 29, 2012, 02:28:01 PM »
thanks guys i just got a ai and wants to see what would work
that will safe me alot load work up tks again
larry223
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