|VOIGHTLANDER, of Rangefinder Forum, ordered a couple of straps from me and asked the following:
"A question ... your strap is it made from a continuous loop of leather or both ends are tied/hidden within the waxed thread. I need to know if it's the latter cos i will take care not to swing the camera around as the strap ends may just came loose."
There is a glued and stapled joint under the waxed thread. I've really pulled on these with my hands to test them, but I've been thinking about something a little more measurable. VOIGHTLANDER's question prompted me to do a test to see what the limits are. I first hung a vise and hammer that totaled 17 pounds. That worked fine so the only other thing heavier I had was an old monitor. It weighs 25 pounds. It hung there just fine, but the split ring was starting to deform.
At this point I didn't want to add more weight because I didn't want that much falling if it failed.
I think it's safe to say that if the camera you are carrying is starting to deform the split ring that you might not want to swing it around.