10-22 magnum converted to 17hmr

[Prebanpaul]

I have a 10-22 magnum that I have placed a butler creek barrel on. I am having some signs of pressure issues. The bottom 16 of the brass is bulging in a perfect round shape. My gun feeds them accuratley and eject perfectly fine. The gun shoots .5 to .75 inch groups.

any way to stop this

also if I thread the barrel could I use my 223 suppressor on this,,,,,

 

[thickstrings]

Re: 10-22 magnum converted to 17hmr

Could be a chamber issue, do you have a chamfer on the face of the chamber? Clean and polish your chamber,maybe that will help. Could also be timing.If you are having presure problems, I don't think a suppressor would be advisable...Bottle neck cartridges and blowback actions are a delicate balance... See here http://rimfirecentral.com/forums/showthread.php?t=455075

 

[762frmafr]

Re: 10-22 magnum converted to 17hmr

Did you do anything to the bolt? I would venture to guess that if you didn't, the bolt does not have enough mass. The pressure curve of the 17's is completely different than the 22's.

 

[Prebanpaul]

Re: 10-22 magnum converted to 17hmr

I actually have the tungsten carbide charging handle to add weight to it.

 

[762frmafr]

Re: 10-22 magnum converted to 17hmr

Not enough weight.

 

[RWSGunsmithing]

Re: 10-22 magnum converted to 17hmr

I tried doing this once. It never did run very well no matter what I did. Save the headach and buy a volquartsen.

 

[CastleRocker]

Re: 10-22 magnum converted to 17hmr

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: RWSGunsmithing</div><div class="ubbcode-body">I tried doing this once. It never did run very well no matter what I did. Save the headach and buy a volquartsen. </div></div>

That's exactly what I ended up doing. Love my VQ.

That being said, I'm still going to try the same thing with a Magnum Research 22 WMR I just got. I'll just have to figure out the barrel porting size/location as MR doesn't have a tungsten bolt.