I use Georgia Arms 230gr .460 Rowland GD JHP rounds in my Clark custom 1911.
They do indeed come in plain vacum sealed plastic bags but packaging aside they are of very good quality.
I have taken two deer with this loading and find it to be very effective and accuracy averages 6.4" for three rounds @ 100 yards.
I am sure it is me not the ammo that is keeping the group size somewhat larger.
In calibrated 10% gelatin covered with three layers of heavy denim this round penetrates 20.5" and shows an average expanded diameter of .72". Weight retention is very good averaging 228grs.
Muzzle velocity from the 6" Clark gun is an average of 1,320fps, I did log two rounds that hit 1,365fps and 1,370fps.
The wound cavity in the first deer was very impressive, the bullet entered just behind the front left leg on an upward angle and traveled up through the right side of the neck where it exited.
The exit wound diameter was quite large and blood lose was high, estimated penetration depth before exiting was approx 15".
The second bullet remained in the torso lodged in the hind quarters.
The bullet traveled a distance of approx. 18" inches, the shot was placed into the right chest/lung area from an off camber forward angle.
Both animals were in the 100- 125lbs weight range and the rounds dropped the deer within 10-15ft and a second shot was not necessary.