On advice from another poster here I started buying Sig brass a couple of years back. I have been more than pleased with it and say that it compares very favorably to Lapua but way cheaper in price.
I saw the Federal deal at Grafs, that does seem cheap. I just remember the Federal 308 brass lost primer pockets pretty early iirc. Haven't seen any Sig but I'll have to check that out. I'm not opposed to Starline or Petersen either, they're probably all pretty good.
I toss out federal brass or save it to trade for other brands. I just don’t trust It. I’ve had a lot of cracked necks on factory loaded ammo after the first firing. Other than that I’m not a 243 brass snob. I mainly use Remington and Winchester brass in all four of my 243’s with excellent accuracy. I have brass Of both brands I’ve shot almost 20 times with no cracking or loose primer pockets. I do anneal all my 243 range brass pick ups before resizing and trimming. I then anneal again after every couple of firings. I finally lost a couple of cases last year that I bought back in 1999 that were fired so many times I lost count and never annealed once and I also loaded them to long causing excessive pressure. My fault.
I’ve ordered and returned a bag of bulk federal lake city look alike 223 casings not to long ago that were all trimmed .4” shorter then minimum Sami recommended specs.