The last of the 'cheap' .303 I saw was back in 2007 or so, for roughly $16 a box of S&B. That was before it shot up to $24-$30 for most of the regular brands.
The S&B is great stuff though. Probably the best of the factory brands. About the closest you'll ever get to Mk VII Ball.
I've pulled, weighed, and measured a bunch of Federal and Winchester ammo, and I can say it's not worth what you pay for it. The crimp strength and powder weight varied with every round, and to top it off; most bullets are .310 to .3105 in diamater. Not much good when most Enfield barrels are .311 to .312, going up to .314's.
Handloading is far from a hassle. It's the only way to go with old calibres. My $120 Lee reloading kit has paid for itself almost ten-fold by now with all the ammo I've made, and my group sizes have shrunk to boot. I love showing up at the range with hundreds of rounds, while others shoot a box or two, chuck their brass, and go home. How lame is that?