Thompson center Icon

[mj30wilson]

At the end of the muzzle, the crown area, their is a 90 Degree sharp edge where the rifling ends. After running a cotton swab down the end strands get caught on the edge. You can even catch the edge with your finger.

http://www.gunblast.com/images/TC-Icon/DSC05524.JPG

Pictured is the end of the muzzle of the model of icon I have. This is a article written on gunblast. It appears this rifle has the same problem.
Thompson /Center garantees 1 M.O.A. and the target was included.
Will this wear of with firing? Should I send it in for repairs?

http://www.gunblast.com/TC-Icon.htm

Does anyone have any ideas? Should this be chamfered?

 

[DrMike]

What you describe should not be a problem with your rifle. It is not out of the ordinary with a recessed crown. Shoot the rifle and see if you are able to match the target you received with the rifle. It should be fine. When you shoot the rifle, you will quickly discover if there is a serious problem. However, the picture does not indicate a problem if yours looks the same.

 

[mj30wilson]

Thanks Dr.Mike

 

[Antelope_Sniper]

I agree with DR Mike. My son's Mossberg ATR in .270 win is the same way...it shoots sub MOA, and that with my stock loads....After I pay a little more attention to is I expect much better results.

 

[cloverleaf]

the barrel on my Mauser is of unknown parentage and has what I call a cut back crown. It fails the "Q-tip" test as well. And will shoot sub MOA. I almost let a "smith" talk me into having it "sent out" to be recrowned before I ever shot it. Boy am I glad I didnt. Guess its up to you. You could try it and send it back if it dont meet your expectations. They will tell you what they think. Thats sure. Were it me I'd shoot it first. CL

 

[DrMike]

If the crown is cut square to the rifling, it will feel sharp. This permits exit of the bullet without imparting a yaw, which contributes to accuracy. I like the recessed crown as shown in the picture. The two new Model 70s that I picked up this year have recessed crowns, as did the older Model 70s released toward the end of the New Haven plant.

It seems that this style of crown has become somewhat popular on some of the newer models of rifles rather than the 11 degree crown that prevailed a few years back. What is important is that the crown is cut perpendicular to the rifling. The Icons I have examined all appeared to have a fine finish.