I am a big fan of the Peacemaker and have more than one.
I recently bought a vgc second hand boxed one in black -cheap.

Poor accuracy until I cleaned the barrel then fine!
I thought it was the shells but not so.

I have a couple of SA6s and although they are stripped, polished and have wood grips they are a bit dowdy compared to the newcomer.
They shoot .22 pellets loaded at the front and are a few decades old now!

There is no comparison in accuracy.
The SA6 wins
At 6 yards standing one hand shooting the bull vanishes.

The Umarex has the fps and the looks and the occasional bull.

The SA6 can be fanned too -with no accuracy!

Pellet gun wins again.

I fired up my old Hahn which shoots H&N lead ball for another trial and this one is much less accurate than the Umarex.
So maybe a fairer comparison and shows how far BB guns have come.