Magazine feed lips dimensions. Does anyone know what they are or where to find it?

[aaronb]

I found the dimensions to the magazine feed lips on line somewhere a while ago. Now that I need the numbers I can't find out where I wrote it down or where I found it at. I've tried every word combination in the search function and they all come back with no information found.

Does anyone know where I can find that info?

Thank you?

[aaronb]

And I was looking for specifically how far the magazine feed lips could spread before the magazine was unusable.

Thanks again!