And Horne admitted their performances in the Heineken Cup had not been up to scratch.
"It was great to get the win and finish on a high," he said. "It by my no means makes up for all of the losses, but it does gives us a few positives to take in for our form in the league season."
Horne lit up the Scotstoun Stadium with a wonderful score in the final minute after coming on as a replacement in the second half.
A swerving run from the 23-year-old ended with the winning score and a try which will probably go down as one of the best of the season.
"Alex Dunbar gave me a great offload and I managed to get on a support line and pick up the ball," said Horne. "I tripped myself up a couple of times but I got myself over the try-line.
"After the first dummy I thought I'll just see what happens but then I got to the 22 I started to realise I might actually makes this. I was just delighted to get the try."
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