Lyman 401043 in 10mm

[RDub]

Well I've shot these in a .40 S&W and they did well, no I wanted to try them in a 10mm.

All these were shot at 25 yards. Seating depth is 1.265". Everything feed flawlessly through the G20.
G20-SF KKM 4.6" SS barrel.
Data in the targets from top to bottom;
Velocity
Extreme Spread
Standard Deviation
Temp F°

154406

The next weekend;

154407

Here is the Lyman 401043 boolit next to the RCBS 200gr SWC.

154408

Anyway this boolit is working out well in 10mm.

[Le Loup Solitaire]

My only 10 mm is a spare cylinder that came with a Ruger 38-40 Buckeye and i have used the Lyman 401043 in it. It shoots/groups well with no OAL or leading problems. LLS

[RDub]

In the 38-40 cylinder or the 10mm? In that revolver I'll bet you can load 10mm's up to meet or exceed any autoloader.