also some of the others that I've posted and some of my other posts.
I have some supersonic loaded with Lil gun and N110 waiting to be shot next days off.
At this point I've mostly been trying to figure out subs.
As to your question about Lil gun being hard on throats here is what I found in my book propellant profiles.Accurate 5744 has shown the most consistent velocities and smallest standard deviations out of all the powders I have tried, but it has been kind of sooty with incomplete combustion(unburned granules). Fouling has been easier to remove from outside of barrel under suppressor than the fouling from IMR 4227.
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All of the ball powders are touted as being easier on barrels than extruded powders. I have yet to prove it either way, but the broader my knowledge of propellants becomes, the more I question and seriously doubt that any extension of barrel life, if such does indeed exist, is a result of the so-called coolness of ball powders. The burning temps of stick(extruded) powders by DuPont and Norma of similar burning rate were 2500-3000 deg. Kelvin, while BL-C(2) was 2815 deg K. I believe that if ball powder are easier on throats it was probably due to them being less abrasive when being forced through the barrels throat that is heated to an almost molten state
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Rapid(auto)fire?
There was nothing in the write up on Lil Gun, but I think it would be similar in qualities to BL-C(2).