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Max Online: 16728 @ 03/25/12 08:51 AM
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#6985360 - 12/06/17 12:21 PM .260 Remington Improved (Ackley Imp)
bronco71 Offline
Woodsman

Registered: 09/04/07
Posts: 216
Loc: N. Dallas/Sulphur Bluff
Does anyone have a no go gauge for this caliber for sale or rent? I have had one on back order.....like forever....I got the go gauge finally and would like to get this set up.

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#6985609 - 12/06/17 02:53 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
bo323 Online   content
Tracker

Registered: 09/24/11
Posts: 821
Loc: Snyder, tx
I believe you can use a 260 go gauge.

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#6985666 - 12/06/17 03:36 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
dee Online   content
THF Trophy Hunter

Registered: 04/10/10
Posts: 5086
Loc: Red River way
Any of the 308ai gauges will work
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"A vote is like a rifle; it's usefulness depends on the character of the user" Theodore Roosevelt

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#6985774 - 12/06/17 04:43 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
Judd Offline


Registered: 01/22/09
Posts: 11451
Loc: Sachse, TX
Take a piece of packing/shipping tape that is .003 thick...tape it to the back of the go guage....now you have a no go.
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Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel

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#6985814 - 12/06/17 05:11 PM Re: .260 Remington Improved (Ackley Imp) [Re: bo323]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 11677
Loc: Lewisville, TX
Originally Posted By: bo323
I believe you can use a 260 go gauge.


^^ No, won't worky. It's am Ackley Improved 40 degree shoulder, so it's totally different than a standard 260 Rem shoulder.

Originally Posted By: Judd
Take a piece of packing/shipping tape that is .003 thick...tape it to the back of the go guage....now you have a no go.


^^^Yes. will worky! The difference between go and no-go is generally .005"-.007". Some tape is right at .005" thick. Cut it to fit on the shoulder, and now you have a no-go gauge.

_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

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#6985815 - 12/06/17 05:11 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
bronco71 Offline
Woodsman

Registered: 09/04/07
Posts: 216
Loc: N. Dallas/Sulphur Bluff
Thank you all! Cancelled the back order and have a 308 family go gauge on the way. I'll set it up with the 260AI go gauge, then tape it and check as no go gauge while waiting on the 308 go gauge to arrive and then double check with it....

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#6985896 - 12/06/17 06:17 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
Judd Offline


Registered: 01/22/09
Posts: 11451
Loc: Sachse, TX
It's much easier to put on the back and trim around the edge of the case with an exacto than it is the shoulder...and to Chad's point .005 will work but I wouldn't go much thicker and I'd try to stay in the .003-.005 range.

In a pinch...you can always use a fired case with the tape too...assuming you have one. This is more a trick when you are swapping a barrel from one action to another and have shot it on the initial action and seeing if it will fit the 2nd action and headspace properly. Take a fired case from the first action...put the tape on it and there is your no-go...the fired case can act as your go.
_________________________
Originally Posted By: Phil Robertson
Don't let your ears hear what your eyes didn't see, and don't let your mouth say what your heart doesn't feel

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#6986312 - 12/06/17 10:44 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
bronco71 Offline
Woodsman

Registered: 09/04/07
Posts: 216
Loc: N. Dallas/Sulphur Bluff
Ok, I screwed the barrel in with the 260AI go gauge chambered, ejector and extractor removed from bolt, and tightened barrel nut to 40lbs. Then I put a piece of masking tape (supposed to be 4.4 mils thick but I can't find where my calipers walked off to) on the head of the go gauge and bolt will barely start to close until lots of resistance is felt. I feel like I could force the bolt closed more but I think I am compressing the tape at that point. Cleaned tape off of the go gauge and it chambered nicely. I plan to double check it with the standard 308 go gauge as a no go before I shoot since it is already on the way here.

I still need to pick up some 260 ammo to test fire it and to start forming some brass....


Edited by bronco71 (12/06/17 10:45 PM)

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#6986314 - 12/06/17 10:51 PM Re: .260 Remington Improved (Ackley Imp) [Re: ChadTRG42]
bo323 Online   content
Tracker

Registered: 09/24/11
Posts: 821
Loc: Snyder, tx
Originally Posted By: ChadTRG42
Originally Posted By: bo323
I believe you can use a 260 go gauge.


^^ No, won't worky. It's am Ackley Improved 40 degree shoulder, so it's totally different than a standard 260 Rem shoulder.

Originally Posted By: Judd
Take a piece of packing/shipping tape that is .003 thick...tape it to the back of the go guage....now you have a no go.


^^^Yes. will worky! The difference between go and no-go is generally .005"-.007". Some tape is right at .005" thick. Cut it to fit on the shoulder, and now you have a no-go gauge.



For some reason I had it in my head that it would work, since you can still use regular ammo in a ai chamber.

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#6986319 - 12/06/17 10:57 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
bo323 Online   content
Tracker

Registered: 09/24/11
Posts: 821
Loc: Snyder, tx
[url=://www.midwayusa.com/product/1007155050/ptg-headspace-go-gauge-260-remington-improved-40-degree-shoulder]260 ai go gauge[/url]

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#6986320 - 12/06/17 10:58 PM Re: .260 Remington Improved (Ackley Imp) [Re: bo323]
bronco71 Offline
Woodsman

Registered: 09/04/07
Posts: 216
Loc: N. Dallas/Sulphur Bluff
Originally Posted By: bo323
Originally Posted By: ChadTRG42
Originally Posted By: bo323
I believe you can use a 260 go gauge.


^^ No, won't worky. It's am Ackley Improved 40 degree shoulder, so it's totally different than a standard 260 Rem shoulder.

Originally Posted By: Judd
Take a piece of packing/shipping tape that is .003 thick...tape it to the back of the go guage....now you have a no go.


^^^Yes. will worky! The difference between go and no-go is generally .005"-.007". Some tape is right at .005" thick. Cut it to fit on the shoulder, and now you have a no-go gauge.



For some reason I had it in my head that it would work, since you can still use regular ammo in a ai chamber.


From what I have researched today the factory 260 cartridge can be fired but the brass will slightly form to the AI chamber when closing the bolt and then fire form to the chamber when firing. Because the go gauge is steel it will not close since it won't give when closing the bolt.

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#6986321 - 12/06/17 11:02 PM Re: .260 Remington Improved (Ackley Imp) [Re: bo323]
bronco71 Offline
Woodsman

Registered: 09/04/07
Posts: 216
Loc: N. Dallas/Sulphur Bluff
Originally Posted By: bo323
[url=://www.midwayusa.com/product/1007155050/ptg-headspace-go-gauge-260-remington-improved-40-degree-shoulder]260 ai go gauge[/url]


That is the go gauge that finally came off of backorder. The no go gauge is still on backorder after several months. That is why I have posted here and researched alternate methods.

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#6986324 - 12/06/17 11:13 PM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
bo323 Online   content
Tracker

Registered: 09/24/11
Posts: 821
Loc: Snyder, tx
I have swapped two barrels using barrel nuts. One I used the gauges on. The other i used a sized case on. I haven't had problems from either one but neither has had any factory ammo.

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#6986443 - 12/07/17 07:05 AM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
VAFish Online   content
Woodsman

Registered: 02/09/15
Posts: 166
Loc: Fairfax, VA
If you are doing the barrel swap on a Savage type rifle I really don't see the need for a No-Go gauge. I mean you are putting the barrel in, snugging it down against the go gauge then tightening the barrel nut. There is no way to have too much head space, and in the few savage barrel swaps I have done I have never had a bolt close on the no go gauge after tightening the barrel nut.

I just wouldn't be that worried about it. Worst case scenario with excessive head space you get poor accuracy and erratic ignition. With a Savage you simply loosen the barrel nut run the barrel back against the go gauge and tighten the barrel nut again.

Now if you are doing a barrel that you have to mount then use a chamber reamer to get the proper headspace, then yes I think the no-go is essential.
_________________________
"If your plan is for one year, plant rice.
If your plan is for ten years, plant trees.
If your plan is for one hundred years, educate children."
-- Confucius

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#6986689 - 12/07/17 09:33 AM Re: .260 Remington Improved (Ackley Imp) [Re: bronco71]
ChadTRG42 Online   happy
THF Celebrity

Registered: 09/16/09
Posts: 11677
Loc: Lewisville, TX
Originally Posted By: bronco71
Originally Posted By: bo323
Originally Posted By: ChadTRG42
Originally Posted By: bo323
I believe you can use a 260 go gauge.


^^ No, won't worky. It's am Ackley Improved 40 degree shoulder, so it's totally different than a standard 260 Rem shoulder.

Originally Posted By: Judd
Take a piece of packing/shipping tape that is .003 thick...tape it to the back of the go guage....now you have a no go.


^^^Yes. will worky! The difference between go and no-go is generally .005"-.007". Some tape is right at .005" thick. Cut it to fit on the shoulder, and now you have a no-go gauge.



For some reason I had it in my head that it would work, since you can still use regular ammo in a ai chamber.


From what I have researched today the factory 260 cartridge can be fired but the brass will slightly form to the AI chamber when closing the bolt and then fire form to the chamber when firing. Because the go gauge is steel it will not close since it won't give when closing the bolt.


Yes, you fire form the standard 260 Rem ammo to get the AI shoulder. But the go and no-go gauges are totally different for gunsmithing between the 2 chambers. The same 260 AI go and no-go gauges can be used for anything on an AI case in the 308 family (7-08 AI, 308 AI, 260 AI, 243 AI, etc). The standard 308 Win family (non AI version) of cartridges can also use the same go and no-go gauges (260 Rem, 7-08, 243 Win, 338 Federal, 308 Win, etc). Comparing the 2 family of cartridges (standard 308 vs. AI) they each have a different shoulder angle and length, and both head space on the shoulder. Therefore a different go, no-go gauge is needed.
_________________________

Custom and Precision Ammunition!!
www.DallasReloads.com
Type 01 and Type 06 FFL

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