[Elecraft] Tuner ranges

[Michael K Bottles]

Is the tuner range of the K-3 and the KAT-500 the same?
They seem to tune the same antenna differently, (of course the K-3 is tuning through a bit more coax with both the KAT-500 and KPA-500 on standby.)
They are tuning a 250’ Doublet via a short coax run (10’) to an external 4:1 current Balun, then via true 600 ohm open ladder line. 
(I tried a 1:1 Balun, but it did not have as great a range on 160 as using the 4:1.)
The K-3 seems to have a bit more range than the KAT-500.
Is that to be expected?
73
Kim - K7IM