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jam762
December 31, 2015, 10:01
This morning I dug my other Woo out to send to GP for faux FH removal & installation of a muzzle device. I strip it down and notice that the bbl has some play in the receiver. I can see where someone has drilled and put a roll pin just forward of the bbl retaining screw(?). I haven't shot this rifle in the last couple of years and don't remember any play in it before.

Pulled the other Woo out, stripped and bbl is tight and no cross pin drilled/installed.

Does anyone know what's going on here, seen this before?

Thanks,

jam762
January 01, 2016, 10:37
After a little research, it looks like the earlier DR-200's had the cross pin to retain the bbl fixing pin.

I drove the pin out and found a screw that threaded into the fixing pin. I was able to pull the pin out slightly by hand and used the claws of a straight claw hammer to pull the pin the rest of the way out. The bbl then slid out of the receiver by hand with relative ease.

I've read where others have had their barrels remove just as easily and others have had to be pressed in/out. Also have read where some people were unable to to get the bbl fixing pin to budge.

After pulling the bbl I started looking at the journal in the barrel extension where the fixing pin is pressed in through the receiver, it looked like the bottom of the hole is staked(looks kinda like an external tooth lock washer). It looks like the park is worn off from the right hand side of both the bottom of the journal and fixing pin. The hole seems to be larger than it should be, there is absolutely no resistance when I seat the fixing pin. The fixing pin measures 0.3135 and the journal measures 0.3250, is this normal? Does anyone have a measurement of the fixing pin handy?

Stoney
January 01, 2016, 12:37
pix

jam762
January 01, 2016, 13:11
Bbl with retaining pin setting in journal.
http://i1327.photobucket.com/albums/u680/jam556/20387F0A-4C11-486C-A421-44812668A500_zpszxnwpapg.jpg

Retaining pin journal.
http://i1327.photobucket.com/albums/u680/jam556/E9783544-EA94-465B-AA21-9FAD035FA56F_zpsd8pbmm8y.jpg

Retaining pin.
http://i1327.photobucket.com/albums/u680/jam556/975910C3-02E5-467D-85D0-810EA986A9FA_zps5trhfrvi.jpg

jam762
January 02, 2016, 12:56
Look at the bbl extension, there are spots where the park looks to be worn off. Was this caused by the movement or from a poor park?

I now remember noticing there being play in it but attributed it to the upper/lower fitment. My other 200 has a bit in the upper/lower too. There is/was someone doing a mod to the button on the recoil spring to tighten the fitment between upper/lower but I never got around to having it done.

Any input would be much appreciated.

Stoney
January 02, 2016, 22:34
I'll have to look at mine

jam762
January 09, 2016, 21:18
I'll have to look at mine

That would be great thanks!

Stoney
January 10, 2016, 01:35
both are B West, no movement

jam762
January 10, 2016, 09:01
Thanks for checking Stoney.

Both of mine are Kimber imports.The one with issues has the roll pin that locks the fixing pin in place. The one without roll pin is solid.

I've sent it out to GP for him to check out.