When I've tried steel with NV at 1,000 ... I rode down and put ir-beacons on the target ... that worked.
As to using aiming laser at short distance for hogs, yes that works, it is faster! But you can use any laser for that, don't need an expensive combo unit. Put the ELIR-3 on the bolt gun for long distance and and a separate aiming laser on the hog gun for short distance fast engagement.
I have two laser max ir-lasers from amazon ... they are cheapo .. but they are still working after 4 years. These days they are around $160 a piece including the pressure pad. Neither of my pressure pads will work any more, but the on/off switches do. The units are not water proof, so I clean the contacts with isopropyl when I change the batts.
Step up from that is Steiner CQBL those are around $700 on Amazon last time I looked.
I got a paq-4 on ebay for $400 around 3 years ago ... that is roughly equivalent to the CQBL. The PAQ-4 is a little lighter, but also a little larger and does not have a vis light laser for zeroing support.