As for cheaper stuff, I haven't had any problems with the Magtech 115 gr FMC at all. I also have some of their hollow points (Guardian Gold) en route to try out. As for light strikes, the only one so far was with the Remington UMC 115 gr FMJ, but just the one in a bunch. I haven't shot any known hard primer ammo thru it, so can't report on that. The 147 gr difference you're wondering about might be due to the lower velocity. I've shot both in various guns and can't really say it's all that noticeable of a difference to me.