A 350Legend case is basically a straight 223/556 case.So the 350L case will only hold about 25 grs 3031 seated to the base of a 200 gr bullet?!! I was under the impression it was a larger cartridge than that, never having seen one in person.
In reality, it is nothing more than a 357 Max which will function in an AR, and not that big of a case. Same basic size as a 357 Max case, which is a 357 Mag case with an extra third of an inch of length. Not all that capacious. It's BIG, when you think of it as a 35 cal revolver round, but not so much even compared to the 30/30 or 7.62x39.So the 350L case will only hold about 25 grs 3031 seated to the base of a 200 gr bullet?!! I was under the impression it was a larger cartridge than that, never having seen one in person.
I like to shoot 1000 fos loads in my bolt 450. I use a Lyman 450g bullet and Unique. Herco didnt have the pop and needed 1400 ta preform. Then all of a sudden they wasnt stabile. So I switched to a 380g Lyman still fun and fully stabile.Getting back to this…
I‘m not sure why, but I ended up loading 3 rounds in the 450 Bushmaster with 15grs of 3031, enough poly fill to fill up the airspace and 235gr cast bullets. Yeah, I know this is a 350 Legend and I’m scratching my head as to why I loaded 450bm this way and I have no freaking idea.
Anyways, took the 450 out with these loads and some others yesterday and figuring there could be a problem with these I shot them last. Actually, only shot 1. Sounded like a bottle rocket launching and I had to pull the bolt out to check if the barrel was clear. It was, other than about 14 grs of unburnt 3031 in it. . I didn’t bother shooting the other two, I’ll pull the bullets and save the components. So lessened learned, 3031 doesn’t work for light charges!