I have done a lot of reading on how to refill used primers in light of the chronic nationwide shortage of small pistol primers. I have everything I need to produce the H48 compound shown in Marshall Thompson's updated (2019) primer course manual. I would be using this H48 primer compound in primers used in 9mm ammo to be used in a Taurus G2C, which I think is a gun that would be very easy to clean.
But I am more interested in the non-corrosive Lead Nitratohypophosphite primer also shown in Marshall's book. I have sourced all the ingredients for this (I think) except one - calcium disilicide. My question is how important such an ingredient is, and whether something else - like glass powder or calcium silicate - could be used in its stead. I would appreciate comments on this.
I found sodium hypophosphite, on ebay - but that may turn out to be shady...