I use either 3/64" 7x7 or 1/32" 1x19 Stainless steel ,most of my rat snaring is done in brackish water.I cut the cable 14 1/2' long use a BMI mine lock with a swivel.
I find the snare out proforms all other traps when set on dry land trails for Mink and Muskrat.In other sets like bank holes,runs ect., you can use a snare where ever you can use a 110.
The spring is the time to use lure with the rat snares.I have found that the muskrats will make scent posts high on the banks of tide water creeks.I set my snares in the runs/trails leading to these scent posts.
When i cant find one of these scent posts,I will make my own where I want it.(I do the same with beaver castor mounds.) In the skin'n shead I save some muskrat dropings . Out in the marsh I kick in a narrow trail leading from the water,to where it is easy for me to set a snare,on a high bank above the high tide line Place some muskrat dropings at the head of the run.Then use some of my "MUSKRAT LOVE" lure on the dropings .Most of the time muskrats cant pass up this set.