Hey guys. I have a big problem with my new old stock 610-3.
My first shots revealed something interesting. My load was as follows:
Case: New Starline
Bullet: Hornady 200gr XTP
Powder: Bluedot
Charge: 9.3
OAL: 1.260"
I was using rimz moonclips. After firing I couldn't eject the spent cases. After tapping on the ejector rod, I was finally able to extract the cases. These loads didn't feel like they recoiled any worse than my 686 which I shot side by side. In fact, the recoil felt exactly the same.
Thinking that perhaps these were too hot (even though Hornady's own manual says 9.4gr of bluedot is max and hornady is typically conservative) I decided to lower the charge to 8.5gr of bluedot and use a MBC 200gr "steeler". I left the OAL at 1.260" since this is the max OAL for any 10mm cartridge.
Well I just came back with the results and I'm quite puzzled.
I fired one moon clip full of 10mm, and once again I could not get it to extract by hand. Next I fired a cylinder full without a moon clip. Every single case fell out except one. Once I got home and tapped out the brass I noticed that the case had ruptured.
Now I'm not exactly new to reloading, but I admit I'm not beyond making a mistake, so I pulled one of the bullets. Within 4 taps, the bullet released and as expected, 8.5gr fell out (well the scale shows 8.1, but a small amount of the powder didn't make it to the pan.)
Also, something else is odd about this revolver. All of my other smiths have a very smooth chamber, almost polished looking. This revolver does not have that. It has what appears to be a cross hatch pattern in the chamber. Almost like the last step of polishing was left out. I'm not sure if this is considered normal for 610's or not. However my 686, 629, 500 and model 60 all have polished chambers. Below you can see the cross hatches I'm talking about in the top chamber.
Now if you look at this brass closely, you will notice that you can see those same cross hatch marks on the brass. Once again, I've never seen this before.
Finally, something else that is odd about this revolver. If I take a piece of spent brass, it will freely fit into each chamber except one! Here is a video of that:
S&W 610 issue - YouTube
So considering all that, what the **** is going on!
Did I get a batch of bad brass from starline?
Are my chambers cut wrong or are unfinished?
Did I make a stupid reloading error and overpressure the brass?
Also here is a dimensional drawing of the cases before and after firing.
Thanks for any help.
My first shots revealed something interesting. My load was as follows:
Case: New Starline
Bullet: Hornady 200gr XTP
Powder: Bluedot
Charge: 9.3
OAL: 1.260"
I was using rimz moonclips. After firing I couldn't eject the spent cases. After tapping on the ejector rod, I was finally able to extract the cases. These loads didn't feel like they recoiled any worse than my 686 which I shot side by side. In fact, the recoil felt exactly the same.
Thinking that perhaps these were too hot (even though Hornady's own manual says 9.4gr of bluedot is max and hornady is typically conservative) I decided to lower the charge to 8.5gr of bluedot and use a MBC 200gr "steeler". I left the OAL at 1.260" since this is the max OAL for any 10mm cartridge.
Well I just came back with the results and I'm quite puzzled.
I fired one moon clip full of 10mm, and once again I could not get it to extract by hand. Next I fired a cylinder full without a moon clip. Every single case fell out except one. Once I got home and tapped out the brass I noticed that the case had ruptured.
Now I'm not exactly new to reloading, but I admit I'm not beyond making a mistake, so I pulled one of the bullets. Within 4 taps, the bullet released and as expected, 8.5gr fell out (well the scale shows 8.1, but a small amount of the powder didn't make it to the pan.)
Also, something else is odd about this revolver. All of my other smiths have a very smooth chamber, almost polished looking. This revolver does not have that. It has what appears to be a cross hatch pattern in the chamber. Almost like the last step of polishing was left out. I'm not sure if this is considered normal for 610's or not. However my 686, 629, 500 and model 60 all have polished chambers. Below you can see the cross hatches I'm talking about in the top chamber.
Now if you look at this brass closely, you will notice that you can see those same cross hatch marks on the brass. Once again, I've never seen this before.
Finally, something else that is odd about this revolver. If I take a piece of spent brass, it will freely fit into each chamber except one! Here is a video of that:
S&W 610 issue - YouTube
So considering all that, what the **** is going on!
Did I get a batch of bad brass from starline?
Are my chambers cut wrong or are unfinished?
Did I make a stupid reloading error and overpressure the brass?
Also here is a dimensional drawing of the cases before and after firing.
Thanks for any help.