Author Topic: Barrel "freespace" ? (Read 517 times)

glockbox · « **on:** January 30, 2005, 03:49:53 AM »

I recently purchased a CZ 223. While cleaning the barrel I noticed a small (approx. 1/4" long) freespace in the barrel about 5" from the muzzle. What I mean by freespace is, while pushing a patch through the bore there is a spot where it feels like the patch exits the muzzle but it is still 5" from the muzzle. It's small, and doesn't seem to effect the accuracy of the rifle. Has anyone else experenced this? :?

jvs · « **Reply #1 on:** January 30, 2005, 04:17:53 AM »

I have experienced something like that in a Thompson Pennsylvania Hunter Flintlock. The ramrod moves easier in some areas of the barrel.

It doesn't affect the accuracy of my barrel, but then it is a blackpowder/patch and ball rifle and the apparent defect is much farther down the barrel than you describe. In mine I can compensate with a .003 thicker patch. And being classed as a 'Primitive', it is probably more like what they produced way back when.

If it was me, and I had a high powered rifle with a defect like you describe, I would contact CZ, just to make sure. You may experience 'blow-by' if the bore/bullet is too sloppy. You could end up losing accuracy and hitting power with a defect like that, if in fact it is defective.

I've heard of tools breaking during the rifling process and I've also heard of bores being out of center in other brands. All of which were taken care of through the manufacturer.

Kingfish · « **Reply #2 on:** January 31, 2005, 09:53:52 AM »

Sounds like good advice to me. I believe a call to CZ is in order.

Bill

gunnut69 · « **Reply #3 on:** February 01, 2005, 08:42:01 PM »

Those loose spots can be a factory defect or they can be caused by firing the weapon with oil (or water) in the bore..

Don Fischer · « **Reply #4 on:** February 08, 2005, 01:42:05 PM »

In the lare 60's I was working the rifle range a Sembach AFB in Germany. There I saw a rifle barrel like that. What it was was a bulge in the barrel. What caused it I don't know but we did turn it in to be re-barrled.