Howdy Again
I did a little bit of math regarding those Black Powder rounds.
14.25 grams converts to a tad over 219 grains for the bullets, and .9 grams converts to about 13.88 grains of Black Powder. The original loading of the cartridge was with a 246 grain bullet and about 23 grains of Black Powder. So if I did my math right, those loads are quite light compared to the originals. I use a 200 grain bullet and about 19.5 grains of Schuetzen FFg powder in my loads.
I cannot say for sure if those are Starline cases, but I have attached a couple of photos. One is of some Black Hills Cowboy 44 Russian cartridges. These are loaded with Starline brass. I included a couple of virgin Starline brass and hopefully you can make out the headstamp. It is a bit different than the headstamp on your ammo. I load a lot of Starline brass, and it all has the two stars and the curved line at the top. At least all the stuff that I have reloaded. You will notice that this ammo has Round Nosed Flat Point bullets, so it can be loaded safely in the tubular magazine of a rifle. Sorry, I don't have any of my own reloads on hand right now for a photo. Gotta catch up on my reloading.
Regarding cleaning up after shooting Black Powder, yes, it is different than cleaning up after shooting Smokeless, but it is nowhere near as difficult as some folks believe. All you need is a good water based Black Powder solvent and a little bit of elbow grease. It is crucial that your bullets should have a soft, gooey Black Powder compatible bullet lube on them. Regular hard lube for Smokeless bullets will cause problems both shooting and cleaning up after Black Powder.
The other thing to bear in mind is that a lot of the revolvers chambered for 44 Russian tended to shoot high at standard pistol distances. My own ammo shoots about 6 inches high at about 10 yards. I will probably try either a little bit less powder, a lighter bullet, or both.
Shoot me a question if you need any advice on cleaning up after shooting BP.