Fresh experience here, just yesterday I equipped a couple mine launchers on my moderately engineered T-7, upper and lower hardpoints of course, just to see if they could be of any help for my otherwise helpless cow. It turns out that yes, they actually work somehow. Unlucky fellows of this evening consisted of a couple Eagles, a Viper mk3, a DBS Scout and a Courier, ranked as far as master. Also met a couple of dangerous ones (a Cobra and another Courier), they were on a far superior level and easily able to dodge mines even from a short distance, so no other solution than low-wake on them.
Anyway, just try to keep your pursuer exactly on your six, preferably under 2 km range, mantain a moderately slow speed (all pips to shields, the more you have the better), and be generous in your rear-ended delivery
It's tricky and not always succesfull, but I'd never expected to cash in bounties earned in a fleeing cow pooping high-yield explosive ordnance. But if you meet anything in the Clipper/FdL/FAS/Vulture range, just keep some dignity and leave the place in a composed hurry.
I don't think they can be of any use against the average human player though.