I see a lot of confusion on here about what is the "1600" vs the SM 98...
First off, HVA only got the '94/96 patent liscence, so they could not make a "real" '98.
They used the patented features of the '94/96, which means; the breeching system, incuding the barrel shank, the staggered magazine box, the claw extractor, the small front ring design and bolt head shape design.
They added a modified ejector/ bolt lock, slim bolt release lever, they moved the ejector slot so it won't cut the left lug in half, they added a third bolt lug, they streamlined the bolt shroud (3 years later, FN will follow the same shape for their Supreme line), they used a hinged floorplate, and a side thumb activated safety. The bolt was modified to better handle any escaping gas from a case failure. Then, they used forged modern alloyed steel for the receivers, instead of the low carbon almost pure forged and surface hardened steel used for both the '94/96 and '98 used from the 1800 up to these days of the '50s.
The '98 have a different breeching system, the Brno uses the "C" type, FN developped the "H" type around 1947-48.
Theoricaly, the '98 is supposed to handle free escaping gases better than the "1600", ut in practice, the "1600" proved to handle it very easily too, and it's much better than the '94/96 does.
So, wich is better between the Brno 22/22 and the "1600" ? Having used both for decades, I can say, none, but one may don't like the double set trigger used on the vast majority of the Brno.