Nothing really wrong with BC but nothing special about it either.
When using steel on pheasants, it is best to go with loads that contain #2 or #3 steel pellets. Steel shot lethality research conducted on pheasants by Tom Roster showed #2 steel to be more effective (at all ranges) than either #6 or #4 steel. Yes, #4 or #6 steel loads will kill'em too, but a little extra pellet energy is a good thing on wild pheasants where shots are often taken at longer going-away angles. The research also showed #2 steel resulted in fewer cripples than both #6 and #4 steel; and Roster speculated that the #3 steel pellet would be a good compromise between pellet count and downrange energy.
Here’s a link to an article on the study.
Steel Shot for Pheasants | North Dakota Fishing and Hunting Forum (nodakoutdoors.com)
Here are a few of my pattern numbers to give you an idea of how some #2 steel loads perform, in my gun/chokes!
Patterning results from a 12-gauge 3-inch Remington 870 Special Purpose with a 28-inch barrel and factory flush Rem-chokes (pattern average of five, 30-inch post-shot inscribed circle, yardage taped muzzle to target, in-shell pellet count average of five, and true choke constriction from bore gauge).
40 YARDS – IC REM-CHOKE (.009" const.)
Federal Speed-Shok 3" 1 1/4 oz #3 steel (186 pellets) pattern 112 (60%)
Remington Sportsman 3" 1 1/4 oz #3 steel (193 pellets) pattern 113 (59%)
Winchester Xpert 3" 1 1/4 oz #3 steel (195 pellets) pattern 109 (56%)
Remington Sportsman 2 3/4" 1 1/8 oz #2 steel (139 pellets) pattern 85 (61%)
Federal Speed-Shok 3" 1 1/4 oz #2 steel (154 pellets) pattern 92 (60%)
Federal Ultra-Shok 3" 1 1/4 oz #2 steel (147 pellets) pattern 82 (56%)
Federal Black Cloud 3" 1 1/4 oz #2 steel (144 pellets) pattern 88 (61%)
40 YARDS – MOD REM-CHOKE (.018" const.)
Federal Speed-Shok 3" 1 1/4 oz #3 steel (186 pellets) pattern 128 (69%)
Remington Sportsman 3" 1 1/4 oz #3 steel (193 pellets) pattern 146 (76%)
Winchester Xpert 3" 1 1/4 oz #3 steel (195 pellets) pattern 131 (67%)
Remington Sportsman 2 3/4" 1 1/8 oz #2 steel (139 pellets) pattern 116 (83%)
Federal Speed-Shok 3" 1 1/4 oz #2 steel (154 pellets) pattern 115 (75%)
Federal Ultra-Shok 3" 1 1/4 oz #2 steel (147 pellets) pattern 109 (74%)
Federal Black Cloud 3" 1 1/4 oz #2 steel (144 pellets) pattern 92 (64%)