Costs time and money to round up grease, bottles, make labels, fill bottles and offer for sale. A little goes a long way and I would spill,lose or contaminate that big cartridge before I ever used much. So the convenience of FBT's little bottles is fine by me. and I'm a cheapass.1/4oz jar for $5 so pretty expensive but it's the only place around town I could find it. Also it's the cheapest thing I bought for the rifle and I still have enough for 4-5 more rifles. The rest of their stuff was decent prices though.