hate to see a 444 go good bye... I have one I purchased in 1981.... and its always been a tack driver...
I can tell anyone who loads for one, that if you use 44 Rem Mag Data for say a lever action.... in the 444 case, it will still give the same muzzle velocity... if mine is an example...
so if someone wants lighter 444 loads... 44 Rem Mag or 44/40 data will work just fine...
I've tried a lot of different of those loads thru mine and never experiences a disappointment...
