I got in on the good deal that Nick B. found and posted
on 30 Mar 20 for the 44 caliber 180 grain XTPs from
Third Generation Shooting Supply

I didn't know how slow the Hornady XTP's could be shot and
still expand properly. Yesterday I asked Hornady's help desk
and they said minimum of 800 feet per second.

I use Herco powder because during the 2008-16 drought it was
about the only powder I could get.

The 1987 Hercules load data chart has a 44 Special load of 10
grains which yields 1050 fps from a 7.5" barrel.

The 44 Mag load is 13.3 grains for a velocity of 1495 fps.

My recoil tolerance and need for speed has been replaced by
follow up shot accuracy. With that in mind in an attempt
to generate a load suitable for 300 lb varmint class encounters
I settled on 10.2 grains. That should be in the mid 1100 fps
range for a 4" model 29. 300 fps above the minimum speed but
some times you have to cover your bets.

It is a well mannered load. It is accurate and burns clean.

As a comparison, Unique's 44 Special load is 9.5 grains/ 1010 fps.
For 44 Mag it is 13.3 Grains/ 1495 fps.

__________________
never get out of the boat