22 Cal PMA Neck Turning Mandrel Size Question

[Fire4Effect]

I just received a PMA neck turning tool with a 22 cal. neck turning mandrel. How loose of a fit should there be between the outside of the neck turning mandrel and the inside diameter of the case.

Measured O.D. of 22 cal mandrel: 0.2015”

Measured I.D. of a resized 223 case: 0.2215”

0.02” seems loose.

If I use the 22 cal expander mandrel it increases the clearance even more. The expander mandrel measured 0.2220”outside diameter.

Thanks

 

[dnellans]

Is it marked as 22 cal? sounds like you got a .204 cal mandrel.

you should only have .001 between the expander mandrel and the turning mandrel you use. so if the expander is .2220 you’d expect the turning mandrel to be .2210

 

[Fire4Effect]

Is it marked as 22 cal? sounds like you got a .204 cal mandrel.

you should only have .001 between the expander mandrel and the turning mandrel you use. so if the expander is .2220 you’d expect the turning mandrel to be .2210

Thank you for the quick response. The bag it came in is marked PCM-1022. This is the correct model number for the 22 cal carbide neck turning mandrel.

 

[dnellans]

Thank you for the quick response. The bag it came in is marked PCM-1022. This is the correct model number for the 22 cal carbide neck turning mandrel.

Give em a call today, I bet there is a mixup somehow. Because as you say, .020 isn’t right.

 

[Fire4Effect]

Looks like a mix up by the manufacturer. The bag was marked 22 cal carbide, but the end of the mandrel is marked C20.

 

[dnellans]

Nailed it! Glad to hear they'll get you sorted out.