RCBS Powder Measure

[Totosdad]

Can someone tell me how to tell the difference in the small and large Measuring cylinder for a RCBS uni-flow measure?

I bought mine from a guy and not sure which cylinder it is and if it correct for rifle.

Kind of new at this , please don't beat me up....lol

[PhilC]

Large cylinder on mine has an ID of .683". Whether right for rifle will depend on powder charge required. I'm using the small cylinder for short action rifle and works just fine.

[Totosdad]

Large cylinder on mine has an ID of .683". Whether right for rifle will depend on powder charge required. I'm using the small cylinder for short action rifle and works just fine.
Thanks guess I have the large one.

[Orezona]

Thanks guess I have the large one.

You may try calling RCBS and tell them your situation. You bought the measure from a guy, you didn't know it was supposed to have two cylinders and you are missing the small one. I bought an early 80's rockchucker from a guy a few years ago. It was missing the primer catch try. I called RCBS, told them the story, they sent me a tray for free.