Yeah in indirect fire with proper cover shooting the rifle with the stock in the leg was the way to go.
That’s also stated on German side that soldiers got used to the angle of the grenades /trajectory and the sights were less and less used… There are videos from ww2 with said grenades bn used.
I also found that. But for game purposes we can (and should) have it.
In the worst case scenario noobs will use it and pros will be skillful enough to not use it.
I wouldn’t mind an alternative firing mode for added range but as others have said the recoil forces for a rifle grenade did not preclude direct fire methods. This wasn’t like the Japanese knee mortar.
I have owned an M1 Carbine with grenade launcher sights. Now, granted, I never actually got to use it with a rifle grenade of any sort, but I recall the actual sight being useable when standing. In fact I think the only way you could use the rifle grenade sight with the butt on the ground would be to be prone behind it. I can’t speak whatsoever in regards to full-sized rifles firing rifle grenades, which includes the degree of recoil that would be experienced from shoulder-firing one (which, even if the recoil is intense, it might be more of a gradual push rather than one violent WHACK; different self-loading firearms have different recoil impulses after all).
The grenade launcher sights are indeed present for the M1 Carbine w/ Grenade Launcher, which I was delighted to see. A shame it can’t actually be used. I should hope that the kar98k rifle grenade, because it has the far more potent 8mm blank to propel it, either has a larger explosive payload and/or can be launched with further distance/better accuracy.
The Japanese ‘knee mortar’ to my understanding was not designed to be shot from the knee. Ian McCollum at Forgotten Weapons have done videos on it, and I’m pretty sure I recall him mentioning that if you actually tried to use it on your knee, that it would not go well. Don’t know where the ‘knee mortar’ nickname came from, but to my understanding it’s an inaccurate nickname.
You are correct. It was never intended to be fired braced from the knee and it could break bones/dislocate your knee if doing so.
Rifle grenades work off blanks or shoot through designs with real cartridges. Not enough energy to prohibit firing from the shoulder (As far as I recall).
The M203/320 40mm grenade launcher works in the same fashion, it can be fired like a mortar for indirect fire or laid in from the shoulder.