Powder measure for lee breechlock single stage

Yes the rcbs, redding, Hornady and Lyman will thread directly into your press. The Lyman uses a bushing, but it comes with it.

BTW you will need a Lyman universal expander die or equivalent to expand and drop.

No, they won't fit the lee powder thru die, but Lyman makes a universal expander die that comes with several expanders for about $25-$30 and any of the standard measures will work with it. It also has better expanders as they work like (M) expanders.

If you want to buy a RCBS powder measure,

You need this adapter.:

Actually thr LEE PPM is very accurate. It is cheap and flimsy but it is amazingly accurate and consistent. I have tested it with many powders compared to my RCBS. It actually dispenses stick powder with no cutting better than the RCBS!

http://www.uniquetek.com/site/696296/product/T1370

THE PERFECT ADAPTER™ - FOR RCBS® Uniflow™
Item No.: T1370-RCBS / Price: $15.95
The Perfect Adapter for RCBS Uniflow and Lyman Powder Measures The Perfect Adapter™ for the RCBS® Uniflow™ also works with Lyman and Redding powder measures, or any powder measure with standard 7/8"–14 threads. The adapter is custom manufactured from top quality 6061 Aluminum alloy. The top is threaded (standard 7/8"–14 threads) to connect directly to the powder measure, and the new hexagonal body makes for easier tightening. The bottom has two O-rings to secure the adapter inside a Lee Powder Through Expanding Die.* This setup allows you to expand the case mouth AND drop your precise powder measurement through the expanding die ... without changing dies!

* Also works with the LEE Rifle Charging Die (#90194).