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Old September 16, 2017, 07:18 AM   #26
old roper
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I would think you might be able to get case from the gunsmith since barrel was already chambered for the 6 RemAI. He should have some loading data and tell you how to form cases and he did shoot that barrel.

He may of shorten that barrel but your getting new chamber from his reamer.


I would think you want some of his data at least some of his start loads.
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Old September 17, 2017, 11:13 AM   #27
F. Guffey
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I would think you might be able to get case from the gunsmith
There was a time I would ask the same question/make the same recommendation but I have all kinds of trouble finding a smith that can measure the length of the chamber from the shoulder to the bolt face and then there is the diameter of the chamber.

So the choir says fire a few cases and then mail the fired and formed cases to someone's favorite die maker and for $100.00s of dollars you can have a die made make you a set of dies; with no in-between choices. I am lucky, my dies and presses have threads.

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Last edited by F. Guffey; September 17, 2017 at 11:16 AM. Reason: add omitted words
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Old September 18, 2017, 09:46 PM   #28
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Guffey, my post was for Mississippi. It's his barrel I'm posting about.
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Old September 18, 2017, 09:51 PM   #29
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Guffey, my post was for Mississippi. It's his barrel I'm posting about.
That is something I intend to do.... talking with my Smith about it. He has stopped using 6mm AI's in favor of the Dasher for his own guns. So he is hooking me up with his dies. So he should have some insight... right now I'm planning to try the new 110 gr match kings .
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Old September 18, 2017, 10:33 PM   #30
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Seems like when I rented a 30-06 AI reamer once,I was able to rent a headspace gage specifically made for the AI. You might check into that
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Old September 19, 2017, 09:16 AM   #31
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Guffey, my post was for Mississippi. It's his barrel I'm posting about.
Well forgive me; it is a good thing I am not sensitive. And then? There is that infatuated thing about head space gages. 'The head space gage'; one gage? I offered to modify a go-gage, I explained one gage was all the smith/reloader needed. And then there is the datum as in measured from, the measurement can be made from the shoulder or the datum, I like 'the datum' I can make gages with shoulders, I can measure the length of a gage with a shoulder with a datum type gage; again, I only require one gage, with one gage I can measure the length of 16 chamber in thousandths if the chamber has 'zero' clearance or '.016" clearance and everything in-between .000" and .016".

And then there is 'to infinity' I make infinity gages meaning there is no way the shoulder can be too far from the bolt face for me to measure.

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Old September 20, 2017, 11:42 AM   #32
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Having a couple of AI chambered barrels has fought me a few things. First you not getting anything for free with any of them. Granted some are better, a couple much better, but most are more for the appeal of something different.

For myself, I have a .223 and 30-30 both in 14" Contender barrels and then my custom built 25-06. They all shoot great but the best thing is the added barrel length of the 25. I had it built using a 28" 1-9 twist canted land Broughton barrel to take full advantage of the slower powders and heavier bullets. My standard hunting load uses the 120gr Nosler Solid Base at 3250fps. It has on quite a few occasions shot 1" groups at 300yds.

I started bout with a box of factory ammo in all of them. I shot a full box checking velocity as well as measuring case heads with a micrometer which hit down to .0001". This gave me a somewhat standard to work with.

Problem is differences in cases from one brand to the next or even from batch to batch using new unfired. I settled on using Remington and Lapua for the 25 as the readings I got with both using standard loads were the most consistent and almost equal. I do however admit I could get a bit more pressure from the Lapua than the Rem but at that point I had already backed off to the load I'm using.

So you have to have standards to work with. I never seated bullets into the lands I simply did a top end standard load quick work up using new brass that shoots really well for a fire form load using Core Lokts so I could at least shoot hogs with them while fire forming at the same time. Once they were formed I loaded them up to my Ackley loads and go from there. So far I have gotten almost a dozen loads out of most of my original 100 formed cases. My biggest issue is loosing them while hunting.
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Old September 20, 2017, 03:12 PM   #33
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Having a couple of AI chambered barrels has fought me a few things.
Me to: There is no advantage to having a 257 Weather Mag if the barrel is not 26 inches long or at least 2 inches longer than a 257 Roberts barrel. Same with a 7mm57 Ackley improved, I was going to build a 338/06 and then changed my mind, I build a 338/280 Remington with out the improved shoulder and the larger diameter chamber. Basically I increased the length of the chamber from the shoulder to the bolt face .051".

Hatcher increased the length of the chamber .070" +/- a few, in the old days I referred to it as the Wildcat Hatcher 30/06 +.70". In his version he did not experience case head separation and I have asked if someone handed him the wrong rifle.

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