Variables
Hi,
Dyneema eyes can get down to a 1:1 ratio of rope to pin before break strength drops -- in the lab. But a loose cover, a tight fit in the sheave, and what is likely some component of strong lateral load all are variables here, and that is without taking into account relative load, grit, splice efficiency, or sharp spots.
The break strength on that core should be around 13 tons, and you also have a 2:1 purchase, so the load on the rope should be utterly trivial here; sounds like you could specify a much, much smaller rope.
Fair leads,
Brion Toss
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