OK, good info. Assuming these really are .30 cal, then 4895 will work just fine. I've used it when reloading tracer bullets and they lit as well as with other powders. I generally use pulldown powder for several reasons. It's cheaper, or it used to be cheaper, and it's plenty accurate for its intended purpose. Tracer bullets aren't the most accurate bullets, so pulldown powder is fine. You're never going to achieve MOA with tracer bullets anyway.
Just be careful where you shoot them. They probably won't lite for about 100 yards out, and shooting them into a sand or soft clay bank will keep them out of the grass and weeds.