Herco loads great 1 1/4 oz "pigeon loads" and higher velocity hunting loads but it really does not shine with lighter loads. For 1250 fps 1 1/8 oz handicap loads, Alliant Unique is IMO a much better choice.
I presume you already have Herco in possession as to why you ask. As such you will need to load her up into the 1250 fps range to have much luck. I will also tell you to find a load using a Federal 209A primer in a AA or STS case. I believe Alliant's web site may have some.