308 build - bad headspace???

[SNKEBIT]

Put my barrel on my upper and followed all the steps the measuring headspace. Bought a set of gauges, go, no go, and they both closed on the gauges with just thumb pressure. I measured the gauges with a micrometer and cant find any difference in them. Sorry, don't have the brand in front of me.  Faxon barrel, dpms modeled upper and lower from AMT 80%. Wilson BCG. Barrel nut torqued down. 

Possible I have a bad gauge set? 

 

I know, I know, you guys need a shitload more info..................

[survivalshop]

I will post this again , it seems to double or disappear all by its self , try again . Hard to say what brand of HS Gages Faxon uses , they are not all alike , did you remove the Ejector for testing ?

Edited March 23, 2017 by survivalshop

[survivalshop]

 

HEADSPACE GAGE INSTRUCTIONS 

The Forster Headspace Gage is designed to ensure accurate testing of chamber headspace. Headspace is the distance between the face of the breech and the base of the cartridge when the action is closed. Safety and accuracy are threatened when excessive headspace exists. 

For best results with bolt action rifles, remove the extractor from the bolt. The bolt must work freely in the receiver. It is impossible to have the proper feel for a gage if the bolt is tight or sticky. 

Insert the proper gage into the action. Attempt to close the bolt on the gage. CAUTION — Never force the bolt closed on a gage. A rifle with correct headspace should close easily and without feel on the GO gage, but should not close on the FIELD gage. If it does close on the NO-GO gage, but not on the FIELD gage, the rifle may still be serviceable. However, it is not advisable to use it for best accuracy with factory ammunition. CAUTION — Any rifle that will close on the field gage may have dangerously excessive headspace and should not be fired under any circumstances. 

Three lengths of Headspace Gages are available per caliber: 

GO length — This checks the rifle to see that the chamber will accept the cartridges made to maximum SAAMI specifications. 

NO-GO length — This is used by most gunsmiths as a maximum headspace gage when chambering a rifle’s headspace dimension. If a rifle closes on a NO-GO gage, it may have excessive headspace. If a rifle closes on a NO-GO gage, it may still be within the SAAMI Rifle Chamber tolerance. Next, it should be checked with a FIELD gage. 

FIELD length — If a rifle closes on a FIELD length gage, its chamber is dangerously close to, or longer than, SAAMI’s specified maximum chamber size. This is the longest of the three gage lengths. 

Custom-length Forster gages are available. A grinding fee will apply. Call, fax, or e-mail us with inquiries for special gages. 

GO, NO-GO, and FIELD length Headspace Gages are available in the following calibers: 

For rimless calibers — 22 PPC, 220 Swift, 222 Rem., 222 Rem. Mag., 22-250 Rem., 223 Rem., 243 Win., 244 Rem., 250 Sav., 25-06 Rem., 257 Rob., 270 Win., 6mm PPC, 6.5 x 55 SKAN, 6.5 x 55 Swede, 7mm-08 Rem., 7mm Mauser, 280 Rem., 284 Win., 30 Carbine M1, M1A1, M2, M3, 30-06, 308 Win., 8mm x 57 Mauser, 358 Win. 

For rimmed calibers — 219 Wasp & Zipper, 22 Rimfire, 22 Sav. H.P., 25-35, 275 Mag., 303 Br., 300 Mag., 30-30, 30-40 Krag, 32 Win. Sp., 32-40, 375 Mag., 38-55, 30 Carbine. 

Thank you for purchasing a Forster Precision Product. Please wear safety glasses. 

Forster Catalogs are available upon request. 

 

 

[survivalshop]

Why are we getting double posts ?

[planeflyer21]

3 minutes ago, survivalshop said:

Why are we getting double posts ?

"We"?  Because of your split personality? 

Because it's your turn SS, that's why. 

[survivalshop]

Now they are gone , I must be losing what mind I have left , because they were just there . WTF 

[98Z5V]

Somebody hacked The Matrix...

[EngrBob]

9 hours ago, survivalshop said:

Now they are gone , I must be losing what mind I have left , because they were just there . WTF 

The Russians must have taken them.

[planeflyer21]

6 minutes ago, EngrBob said:

The Russians must have taken them.

SS has "Hillary's Disk Clean." 

[survivalshop]

Fuking Russian's !

[shepp]

11 hours ago, survivalshop said:

Now they are gone , I must be losing what mind I have left , because they were just there . WTF 

I didn't delete them

[SNKEBIT]

Headspace gauges are Clymer precision 308 go/no go 1.630"?1.634"  Match specs.  Wrong ones?  Just  did the test again to make sure. Lost the ejector pin, had to order another.  GRRR

[Tripledeuce]

Head space is measured from the base of the case to the "datam line"    That is a specific dia. on the slope of the shoulder.  So, the gages might be the same overall length but the head space is based on the shoulder.

Respectfull

Terry

 

[Flabbergasted]

Faxon recommends using Pacific Tool and Gauges for headspace gauges. From their website:

"Purchase a set of ground headspace gauges. Faxon strongly recommends Pacific Tool & Gauge headspace gauge sets. Other companies have been known to have variations in their production."

[Flabbergasted]

I believe another member in the forum had the same issue with the same brand of gauges and same brand barrel. I think the barrel and bolt were sent to Faxon to check and they said it was good to go. I would try the gauges they recommend.

[SNKEBIT]

5 hours ago, Flabbergasted said:

I believe another member in the forum had the same issue with the same brand of gauges and same brand barrel. I think the barrel and bolt were sent to Faxon to check and they said it was good to go. I would try the gauges they recommend.

Will do!!!!!!!!!

[SNKEBIT]

Just used the headspace gauges that Faxon uses and we are good to go!!!!!!!!!!!   WWWOOOOO  HHHOOOOOO!!!!!!!

Now to test it out!!!!!!!!!!

[SNKEBIT]

Tested with gauges that Faxon uses, good to go!!!!!!!  Got it all back together and waiting for the rain to quit so I can try it out......

Feel like a frog, been raining pretty much for a week here.....................

[shepp]

19 hours ago, SNKEBIT said:

Tested with gauges that Faxon uses, good to go!!!!!!!  Got it all back together and waiting for the rain to quit so I can try it out......

Feel like a frog, been raining pretty much for a week here.....................

Week, it's been raining down here for like two months straight it feels like. Just about every other day, bout to hang myself

[SNKEBIT]

On ‎5‎/‎23‎/‎2017 at 7:15 AM, shepp said:

Week, it's been raining down here for like two months straight it feels like. Just about every other day, bout to hang myself

I was being optimistic saying a week, you are right, been freekin raining forever!!!!!!!!!!!!!

[SNKEBIT]

OK, finally got to shoot my build. Shoots pretty accurate. But,,,,,,,,,  no rhyme or reason, will not grab to eject the fired shell. The ejector doesn't grab the shell? Tries to jam another in its place. Empty still in barrel.  Unjam it, pull clip, reset charge handle, empty comes right out like it should.  Ejector clip bad? Wilson bolt assy.

[survivalshop]

3 hours ago, SNKEBIT said:

OK, finally got to shoot my build. Shoots pretty accurate. But,,,,,,,,,  no rhyme or reason, will not grab to eject the fired shell. The ejector doesn't grab the shell? Tries to jam another in its place. Empty still in barrel.  Unjam it, pull clip, reset charge handle, empty comes right out like it should.  Ejector clip bad? Wilson bolt assy.

  A D.Wilson BCG ?    

    If so , change the Extractor to a authentic DPMS Extractor , I had the same issue with one used in a build & there have been a couple others . This is not because of a bad or flawed machining process, its because of Tolerance Stacking with some 308AR rifles , no standards & some just don't play well together .

 As a matter of fact , I had some posts on the subject , somewhere around here .

 

Edited June 19, 2017 by survivalshop

[SNKEBIT]

5 hours ago, survivalshop said:

  A D.Wilson BCG ?    

    If so , change the Extractor to a authentic DPMS Extractor , I had the same issue with one used in a build & there have been a couple others . This is not because of a bad or flawed machining process, its because of Tolerance Stacking with some 308AR rifles , no standards & some just don't play well together .

 As a matter of fact , I had some posts on the subject , somewhere around here .

 

Thank you!!  I will hunt down DPMS ex pin!!

[SNKEBIT]

Ordered!!!!!!!!!

[survivalshop]

7 hours ago, SNKEBIT said:

Thank you!!  I will hunt down DPMS ex pin!!

 I hope you mean , Extractor ? The Extractor Pin & Spring system should be fine . I also have heard the new DPMS II replacement system that works in the LR series of DPMS rifles , works good also . These Extractors are not cheap , no matter which one you get.