Well the big thing is location as they more or less don't ship. i am close to an airforce base, so i just have to wait until they come up.
Sounds like you need 140 for 70 calibers. If you can get 300 @ $5 I am sure you can find someone to take the others pretty cheap.
They do have a retail site also.
http://www.unclesamsretailoutlet.com...2938-p/144.htm