[Sevens]

In some cases, my experience has suggested that it means a lot.
Most glaring example I can relate is in two of my guns--both 10mm Auto.

I have a S&W 1006, full size with 5-inch barrel and all steel. It's a pig, big & heavy, most folks call it "a tank."

My carry gun is a Glock 29, 10mm, with a 3.78" barrel and obviously..a polymer frame. It's actually very close to the Glock 19 in slide slength and grip length, it's just quite a bit more fat.

In any case, the two pistols couldn't be anymore different, but when running the same exact loads through each pistol side by side, I observe more "felt recoil" or perhaps torquing muzzle flip from the much larger and heavier Smith & Wesson.

When you put the two handguns side by side, the difference in bore axis is obvious. I believe that it may be the largest contributing factor.