Barrel and reciver issues.

[remus1984]

Oh hello rimfire world!
So here is my problem! I bought a dlask 10/22 reciver a little while a go and had some barrel issues with fit and what not BUT the rifle seemed to function fine and cycle. I emailed dlask about it and they were surprised at the fit but didn't seem too concerned about it since the rifle would cycle and extract well.

So my question is how should the bolt mate up with the barrel and should the bolt be striking the face of the barrel? Right now the bolt is striking the reciver and grooving the reciver (the bolt face is hitting the front of the reciver and damaging the alumn.).

The barrel is a rugger hammer forged .920 bull barrel and install wasnt the easiest. I understand that not every barrel goes in easy especially from one manufacturer to another and with various recivers and aftermarket parts out there. Any suggestions. I would post pics of damage but I find it very hard and annoying to do so on this fourm.

Also is it common to see lead shavings everywhere with bull barrels? There seems to be tons of shavingstuff everywhere when I go shooting.

 

[Rod B]

It is normal for the bolt to contact the barrel on the 10/22. The mark where the bolt hits should be the same on both sides. When you installed the barrel are you sure that it was fully seated into the receiver, also ensure that the extractor is properly centered in the barrel groove.

It would appear that the shavings are being cause when the round enters the chamber. Try a different magazine. If this does not resolve the issue a very light chamfering on the bottom of the chamber may be required. I have read that originally Ruger specified a ten degree chamfer, however this is rarely encountered.

 

[remus1984]

Thanks Rob

 

[agent_mango]

As mentioned above, the bolt should be hitting the base of the barrel. I'd have to look at my rifle but I think it sticks into the receiver by a few millimeters. After some shooting you'll start to see the impression the bolt leaves by repeatedly impacting the base of the barrel.

With fit I suppose it's all hit and miss. I have one Dlask receiver (integral rail) into which a factory Ruger barrel goes in so easily it's pretty much only held in place by the V-block. Shoots nicely with a 2-7 scope, but I haven't done super careful accuracy tests since I'm not looking for tack-driving from a Ruger barrel anyway.

I have two other Dlask receivers (integral rail with 30 MOA cant), which received a Shilen and a Dlask barrel. They were both so tight that I could only get them halfway in, even though I used anti-seize compound. I ended up bringing the receiver+barrel to my friend who has an arbor press, and with some wood, brass, and painters tape to protect everything, used the press to squish the barrel home. I've mostly only shot the Shilen so far, and it shoots quite well.

In this situation, some people recommend a fine sanding of the barrel shank in order to let it fit into the receiver.

Like mentioned above, it's very important to make sure the extractor is lined up with the extractor cutout in the barrel.