My burys are always at least 6 inches never had one slip
I am new to the forum but thought I might share what I found when making my slings. If you look on the Sampson website http://www.samsonrope.com/splicing-instructions.cfm
the designed bury should be 2 &1/4 fid lengths for Amsteel (12 strand) and 1 fid for Tenex (12 strand) on the locked brummel. A fid is 21 times the diameter of the rope. I have made several from 7/64 up to 1/4 Amsteel and all have held with no slippage.
Glad you weren't injured, but yeah I use a 4 inch bury in all but the first set of whoopies I've made. The first I did a 6 inch bury, and sat down very carefully because I thought there was no way such a thin line could hold me.
stitches can be substituted for the locked brummel and the strength will be the same. Again, the stitches do not add strength, but keep the bury from slipping out when there is no load,
A proper locked brummel splice requires 1 less fid length of bury than a normal stitched splice, which uses 3 fids.
One can test this buy inserting a knitting needle into the braid of the line say 1" from the end, and trying to pull the needle lengthwise down to the end of the line. It should pull out easily. Now insert the needle say 6" up from the end, and do the same thing. The braid itself is just as strong as the line, if you can keep it together. The splice aids the lock by not just normal constriction, but by keeping the braid from separating.
When you say that the lock will support 3/4 of the rating of the line, does that mean that the line will snap at the lock? Or that the splice will open at 3/4 of the rating? How does that compare to a straight brummel splice, does that achieve the full line rating?
Stevebo: I received my Amsteel from Dutch today. Because of your post I made sure that when I made the locked brummel for my Woopie slings I buried at least 6" of tail.
Sorry that you took a fall, but I'm sure your advice is saving us from falls.
Glad to be of service! (I was thinking of a second career as a crash test dummy---I seem to have a knack for it! )
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