Saw in my latest cheaperthandirt magazine that this company called "bitterroot valley ammo" is selling some +P .45-70 loads. A 400 grain @ 1900fps and a 400 grain @ 1600fps. Just wondering if anyone has heard anything good or bad about this ammo or company, any experience? anyone shot this stuff? At $20 per box it's the same price as the big 3 down-powered crap. I just don't want to blow my gun apart and my hand to save a few bucks