Hey there,
Bit of context on this one: I played guitar pretty much everyday aged 11-18, then fell out of it and picked it back up again on and off throughout the years. I've taken the opportunity (I think like a lot of people :) ) in recent months to skill up and fill in gaps in my knowledge with GuitarTricks.
Never really struggled with barre chords (from what I can remember - although it was a long time ago that I was 11!), but I've noticed a weird quirk that might be gear related rather than technique - or maybe both.
I have a few guitars I play with, a Hofner 173, a Fender 3/4 Sonoran and also get to play my dad's Squire Telecaster occasionally.
When I play the C# barre at the 9th fret on the Hofner, there's sometimes a bit of buzz on the B string - as if I'm not applying enough pressure. I don't have this issue of buzz on the Sonoran or the Telecaster. The Hofner is really hit and miss, sometimes it's fine and sometimes it sounds like I'm just not barreing right - but on the other guitars, the same amount of pressure is fine consistently.
The Hofner is a lot older (mid 1960s) and probably isn't the best guitar for small hands, unlike the Sonoran and arguably the Squire where the strings are SUPER close to the frets.
Would welcome any thoughts. If it is action related - I might have a measurement tool knocking around so can give a read if someone can help decode.