44RM - Thank you for your kind comments about my Spanish. I can read more than I can write, write more than I can speak, and speak more than I can understand. My grammar is poor, consisting mainly of the present tense, but I can usually make myself understood. Understanding is a bit more of a problem, since I cannot choose the words used by the fluent speaker in reply to me. My vocabulary is mediocre in the extreme, as my Spanish is all self-taught.
About the blanks, I am almost ashamed to admit that after studying ammunition most of my adult life, I cannot answer as to the suitability of using a launcher cartridge as just a noise-producing blank. I have fired grenade blanks in .30-06, both with rifle grenades in tha Army, and with no grenades or grenade-launching attachment on my own, just for the fun of trying it. I can tell you they make a perfectly good “bang” and I can’t see why they can’t or shouldn’t be used as blanks with the same cautions one uses with any blank.
I can, of course, understand why blanks produced solely for the purpose of making a noise shouldn’t be used arbitrarily to launch grenades. They may not produce the correct pressures, or may have a “projectile” of some type that if shot in the back of a grenade could produce catastrophic results for the shooter. Of course, I don’t know exactly what the effects would be, because that is one “fun” thing I have never attempted with a rifle!
Most of my collecting life and study has been devoted to the self-loading pistol and its ammunition. I will prove my ignorance now and tell you that I don’t even know why, in my secondary field of 7.9 x 57mm, it was necessary for (especially) the Germans to make so many different types of grenade launching cartridges to lunch various types of grenades. There was a reason of course, I simply don’t know what it is. I have never read an explanation of any of these questions, as it seems to be taken for granted that everyone knows this information. I don’t. By the way, I am extremely opinionated, as everyone knows, but I am never afraid to say “I don’t know.”
Again, RM, thanks for your nice words about my Spanish. I try hard not to totally destroy the various beautiful languages that my dear friends in other countries speak. Sometimes I fail, unfortunately, and make them wince with my usage. I wish that I had had more sense in school, and instead of loathing foreign languages as a subject, had majored in them. I stand in awe of so many of you on this Forum that speak many languages with great fluency.