Winchester Staball HD 7.5#

I have 7 1/2# left out of an 8# keg. Tried some in my 300 wby and it didn't work out for me. Stored in stable environment always sealed. Located in Whitecourt, Alberta. Not interested in shipping. Can meet up anywhere in Central alberta for a f/f deal. I'm looking for $500. Would trade for equal value of H1000.