I too have a Funk drilling with a like mount. Mine only have the forward stop, but no matter. The width of the dovetail on my mounts is 15mm. The width of CZ 527 small rifle dovetail mounts is 16mm. Buy one of their ring sets, take off the adjustable side and mill or file off 1 mm. The scope will be tight!! The trouble with Warne rings is if the width of the dovetail is different than the width on your drilling, the verticle split ring will not allow you to remove any metal without decreasing the diameter of the ring itself. The original CZ ring is the one I deemed best for the conversion, although one Leupold ring for the mod. 527 might work, as well as a set of millet rings that adjust from both sides. I have not been able to find a QD ring set in 16mm size--most are actually one inch. Good luck, and BTW the CZ rings are working great on my Funk.
