Running dangerously low on h4895 and varget. I use varget in a 308 fn a3g with 155s and a 18" spr ar with 77 smk. I use h4895 in a 6 br with 105 hybrids and also have a load worked up in the 308 with this powder. I have saw that 203b is very similar to re15 and 202 is close to re12. Have also saw many burn rate charts that show 203b slightly slower then varget and 202 slightly slower then h4895. Have also read on the net that 203b is really easy to tune and 202 is finicky, also read the complete opposite.lol. I have a 4 lbs of 203b coming but the place also has 202 in 8 lb cans. I know whatever doesn't work can be sold/bartered, but if the collective here has had better luck with one over the other i would appreciate a heads up so i can order while the iron is hot. I plan to develop my own load so not really a whats ur load question. Just looking for the correct powder choice for my application. Thanks guys.