Anyone who isn't lazy can 'tube up demonstrations of extreme-range stock handgun shooting, other than these below.
That the same glock scoped would have been hitting MOA, and probably sub-MOA from a rest, is not even debatable.
The point? People commonly confuse inaccurate shooting for defects in the gun, rather than imperfect aiming, as they alternately misconceive that the degree of a gun's accuracy is proportional to its barrel-length. The reality is the opposite on everything they believe they know.