Hornady 150 FMJBT - $0.20 when purchased in bulk
47 grains of IMR 4895 (purchased for $22.00 per pound at Camp Perry during the National Matches) - $0.15
CCI LR primer - $0.04 each purchased in 1k bricks for $40 each
Loaded into LC 66 brass that I have on hand
That's $0.39 each, not counting electricity for the tumbler, wear and tear on my equipment, etc.
You can save $0.05 - $0.08 or so per cartridge if you use M80 surplus bullets.
For an extra $0.03, I can load using Nosler 155 grain Custom Competition bullets that I got from Shooter's Pro Shop online for $0.23 each a while back.
I generally stick to 155 or 168 grain match bullets in the M1, so I don't have any good loads for 175 SMK.
Some guys who don't mind using the rifle as a single shot are loading using cast bullets and Trial Boss or pistol powder. I want my semi-auto to work like a semi-auto, so I don't mess around with those loads. I do, however, load the following for my military bolt rifles:
110 grain .30 carbine bullet over 20 grains of SR-4759 with a CCI LR primer. Cost to me is about $0.23 each. The carbine bullets I am using are Armscorp from Grafs. They were $0.11 each last time I bought them, but they have been out of stock for some time. The powder was $28 per pound (20 grains is about $0.08 worth), and the primers were the same $0.04 each.
Those are a hoot to shoot from a M1903 or M1917. They have the recoil of a .22lr. Sadly, Hodgdon discontinued the SR line of powders, so once my couple cans of SR-4759 is gone, I will have to start from scratch for a low recoil tin can plinking round.
As always, consult a reloading manual before assembling any ammo. The loads I posted above are under the stated maximums in my reloading manuals.
Matt
ETA: I have fired the first load above using both the 150 FMJBT and the 155 NCC bullets at Camp Perry, and have walked off the line with a medal using both.