Very interesting!!

Methinks a good man with a Big Double would do well in that event vs those bolts.A loaded gun with 2 cartridges held in the forehand grip hand would make for reasonable initial speed for the first 4 shots(one reload) with some real firepower.A belt cartridge carrier would make for decent access to cartridges for additional shots.

No doubt a good bolt man shooting followup shots off the shoulder would be faster than those shooting on the video but give me a Double for something like this!!