Quote from: harrygunner on December 13 2012 01:19:14 PM MST
I did test stability of Underwood's 220gr hardcast. Changed the test a bit. I compared groups between the Glock 29 and a 1911 with a Bar-Sto barrel.

Posted my results here: http://10mm-firearms.com/factory-10mm-ammo/underwood-220gr-hc/15/

In my opinion, the UW hardcast bullets are softer, with a slightly larger diameter that allowed them to stabilize in the Glock.

Thanks much for the quick response, harry.  Off now to check out the other thread. 

Quote from: harrygunner on October 03 2012 02:19:57 PM MDT
Ordered a few boxes of the Underwood 220gr hard cast. And will be picking up a chronograph.

Figured I'd place targets at fifty yards and slow-fire 180gr and 220gr ammo from a rest, over the chronograph.

I can then, compare group sizes. If the 220gr groups are reasonably similar to the 180gr groups, then that should confirm they stabilize.

I uncovered this thread while searching for info on possible lower 48 bear defense loads and was wondering if you'd ever had a chance to conduct your 50 yard stabilization testing.