Whether on not the receiver is single or dual conversion has nothing to do with the range, either one can have equal range depending on the internal design. You can not use a single conversion crystal in a dual conversion receiver nor visaversa as one uses an IF of about 455 KHZ while the other uses about 11.5MHZ IF. You are best served if you match the crystal manufacturer to the receiver manufacturer as the oscillator design internal to the receiver may differ quite a bit between brands and require different specs for the crystal, even when their fundamental frequency is identical.