SCJ429 wrote:Bladeracer, what sort of speed do you get from a 223 loaded with Trailboss? Do you use about 4 grains no matter the projectile weight?
4gn gives me 1180fps with a 52gn bullet.
3.6gn goes subsonic with the same bullet. 3.6gn behind the 80gn ELDM could possibly stop in the bore due to the extra weight and bearing surface, and probably wouldn't stabilise anyway. For cast bullets you'd need higher charges.
I've got a pile of .223 loaded at 8.0gn with the 52gn but haven't had a chance to chrono them yet.
You can load them to whatever speed you want, up to about 2000fps I would guess - I haven't chronoed a full Trailboss charge as yet. New ADI brass holds 9.2gn to the top and 8.6gn to the base of the neck. Fired PPU and Tikka brass I can fit 10gn into.
My absolute favorite TB load is probably 8.5gn in the .204 behind the 32gn ZMax at 2400fps (basically a .22 Hornet load), but I make TB loads for everything I shoot. 4.5gn drops them down under 1600fps. I have been down to 3.0gn but didn't have a chrono back then.