We have filed square every round front sight we ever found on any of our guns.
That said for 30 yards you almost don't need sights at all. I've done fine with a shotgun bead and no rear and smoothbore with round balls to 30 or 40 yards with an old 1800s musket.
And whether you have X or Y front at 30 simply really isn't going to make a difference. Only 2 things that help would be big enough rear ap to have light to see. And bright enough or contrasting enough front to see, rather than shape.
At the other extreme, I killed one running whitetail at 20 yards with a fixed 6x scope. This was quite a while ago, when hunting in pretty open country in eastern Montana. Didn't expect to get so close to one, but a buck got up out of some tall grass, and I got the rifle up quickly--and the reticle on the back of his neck. At the shot he crumpled--and the rifle was chambered for that lousy .243 Winchester--which at the time many hunters thought was "too fast" for close ranges.....
Mounted a 6x fixed on an 1100 years ago. Just to become more proficient with scope and quick use. It took awhile to learn to shoot doves with it. but IMHO it sure helped my brain and scopes work a lot better/quicker...
We can keep Larry Root and all his idiotic blabber and user names on here, but we can't get Ralph back..... Whiskey Tango Foxtrot, over....
