mcb
Member
While Hodgon just says "fill up (the free space of) the case" Vihtavouri insistes on load data. So it is not the same ...
Never claimed it was the same. I said Tin Star was a competitive powder to Trail Boss, intended for the same market/uses. Hence the name Tin Star, it was marketed for the SASS/cowboy-action crowd same as Trail Boss. It has similar characteristics being an artificially-bulky (through large perforated grain shape) and a fast burning power. They are not interchangeable just similar in characteristics and uses.
ETA: Hodgon also does not say "fill it up" either, not with pistol ammo. You can get into trouble with Trail Boss and doing that in a few cases. 100% full case under some heavy 45 Bullets in 45 Colt will result in pressures above SAAMI MAP. There is guide lines for rifle cases that, in short, indicates you figure out what a 100% full case is for you give rifle cartridge and bullet and then back off to 70% of that and work up to 100% if desired. It also warns to not compressed Trail Boss.
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