"O"- ring For LAM II

[Longone]

Does anyone know the o-ring size that is used inside the lubersizer on the stem? Mine finally gave up and I'd like to finish sizing the boolits I've got ready to go. I know RCBS will send you some but it hardly seems worth it to make them send an o-ring across the country.

Thanks, Longone

[Maven]

Longone, Take the piston with the RCBS "O" rings attached to Lowes, Home Depot or NAPA where the odds are in your favor of finding an exact match. Btw, the ones RCBS sent me didn't fit my piston. I wound up shimming it with some old plumbing washer forming stuff I had on hand (looks like leaded 1/16" rope). It works perfectly now.

[cgm]

Checked my O rings.....I have size 18 and 17. It must be 17 because I remember the first one i purchased was too big!

You might even try 16....

BTW... they are in the plumbing section at Home Depot

[Longone]

Thanks guys, I'm going to grab a couple so I have one on hand for next time.

Longone

[fishnbob]

It is supposed to be a #16 but you can match them up and they work ok. I think the thickness is more important than the dimension.

[cgm]

It is supposed to be a #16 but you can match them up and they work ok. I think the thickness is more important than the dimension.

Yes! 16 it is..... Went back to my box and I found some smaller ones that were unlabeled. They are smaller than the 17's and are indeed thicker and provide a tighter seal. Sorry for steering you wrong....