littlebird13
Full Member
found this at an old farm house only 1-2 inches down. Quarter in picture for size. Is it some kind of ball bearing. isn't rusted at all.
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The standard industry classification for the steel in these bearings is 52100, which means that it has one percent chromium and one percent carbon (called alloys when added to the basic steel). This steel can be made very hard and tough by heat treating. Where rusting might be a problem, bearings are made from 440C stainless steel.
Cwesfrye53 said:Gypsy, surely you don't shoot poor, defensless little birds with stainless steel balls in your slingshot?
Charlie P. (NY) said:Gypsyheart,
If you can wield a slingshot capable of hurling a 1" steel ball bearing fast enough to hit and kill a crow you are one mean motor scooter! What would that weigh? About two, two and a half ounces? Get that moving at 200 fps (the speed of a wood arrow in a good bow) and you could take down deer!