The 2 triple 7 pellets are equivalent to 100 gr. of black powder. The actual weight is different.
I don't see why this is so confusing???
Because one would assume that the 50gr connotation on the pellets is related to its 777 measurement and as we all know 2-50gr 777 pellets is not the same as 100gr of 777 powder. For these newer pellets to make any sense they should be listed in a measurement that equates to the same product in its original form (powder). If I wasn't in the habit of shooting over my Oehler, I would never have known that when I switched from 100gr 777 powder to 100gr 777 pellets that I lost a whopping 200 ft/sec in MV. To me, that is ridiculous. 100gr of 777, in any form, should produce roughly the same velocity.
Not everyone shoots over a chronograph and not everyone reads these forums. Many ML shooters are working in the dark and making a lot of assumptions. Assumptions can often be incorrect.
Please do not think weight. It is volume equivalent of blackpowder. A 50 grain Pyrodex pellet equivalent of black powder weighs 37.3 grains by my scale.
I don't think a single person on this thread is "thinking weight". It seems that everyone knows what a BP equivalent measurement means. Including me, I've been shooting BP, Pyrodex and 777 for over 30 years. (as the powders became available, obviously) If 100gr of 777 is measured by its volume equivalent of BP & 2-50gr 777 pellets are measured by their volume equivalent of BP; could you explain why they don't shoot to the same velocity. Keep in mind that I an not even mentioning the actual weight of the 777 in any form.
It goes back to the 15% reduction when shooting triple7 loose powder. That 15% applies to 100 gr. as it goes 150 gr.
Here it what has worked for me when I was working up loads in my Encore. I wanted to find out if I used triple7 powder, what gr. I would have to use to get the same impact as 2 of the 50 gr. pellets of triple7. I found when I was using my 195 gr. PR bullets, if I used 85 to 90 gr. of loose triple7 it would impact the same point at 100 yards as 2 triple 7 pellets. Then I did the same in my Encore Pro-hunter that I use T/C bonded shock wave 250 gr. bullets. I shot it with 3 triple7 pellets and then I shot loose triple7 powder, I started at 110 gr. and finally got the same impact area when I reached 120 gr. of loose triple7.
The reason I did this was, when I go out hunting I use the loose triple7 powder, I do all my range shooting with loose triple7 powder. But what I wanted was to be able to reload quickly with triple7 pellets if I took as shot and need to reload quickly. I find it a lot quicker to throw in 3 pellets than pour 120 gr. of loose powder down the barrel. So if you notice, the powder is reduced by 15% or very close to it to achieve the same results.
I put in a lot of time at the range and the work paid off. I hope this helps you understand the 15% confusion with the triple7 powder.