I normally use gun.deals to find the best prices and make it easier or from Midway, Graf and Sons, Brownell's, PSA, Cheaper Than Dirt, or MidSouth Shooters Supply. Or find the UPC code for whatever you want to buy and just Google that and see what comes up too
I've never had any issues with them. Honestly, the only way I can tell the difference between their blems and #1 stuff is the packaging. #1 stuff comes in a box and the blems come in a bag.
I’ve used the AmmoSeek app to find good prices. Believe it or not, if you catch Cabelas on sale and use the old “gift card” + 2% activejunky or military discount, their prices can be competitive. Otherwise, Midway, guns.com, etc. never tried shootersproshop, I’ll have to check it out.