I'm not sure what you consider useful speed, but I shot 280 fps with pseudo taper 1842 and 3/8 steel. What speed are you getting with the triple tubes?
I learned that hard way, when I got therabend silver tubes...it must meant to be welded by a terminator, it was heavy like a scuba spear gun bands. And when I shot it speed was slower than normal tubesOf course pulling harder doesn't always guarantee the speed increase expected because of the way elastics operate.
Audacity can be tricky to interpret, but if you are getting consistent readings, you are probably doing it right. You should be getting over 200 fps with the 3-tube slingshot and .50 cal lead. That setup screams for heavy ammo.Somewhere around 200 fps, measured in audacity, didn't measure pseudo but it was waay slower....I know I'm doing something wrong but what? I also got fingers slapped each time with pseudo
That pouch should work fine if it's not too thick. Most of the pouches I use weigh 1.5 grams or less. For speed shooting, I use home-made pouches that weigh about .5 gram. For power shooting, I use my home-made pouches made from fairly thick leather. They measure 3x1 inches and weigh about 3.0 grams.Thats the pouch i salvaged from marksman tubes If any vendor has reasonable shipping costs to Europe I'll try light pouches. Dont have access to heavy ammo, 3/8 steel and 8.5mm(00 buckshot) lead is my choice so I have to build on that. And 250-280 fps with it is very useful. What about this pouch - Non magnetic- Performance size; 68mm long (2 11/16 in.) 5/8 with 5.0 mm (3/16) center hole?
I think they're pretty good. they've got some grit.Don't use the ones you find on the beach. The sand is bad for them.It will be nice to see some actual tested theories for a change. We've just been wandering through this hobby with no guidance or theories to what to shoot. I use old condoms for bands because I have no idea what I'm doing.
Those are great lifetimes. Can you describe your pseudo-taper tie and, if relevant, your fork tie that lets you get so many shots? (What is a "cocktail"?). Also, can you tell me the lengths of the single and doubled sections of your pseudo-taper that had 182 fps. Also, when you say "single loop" of 1745, do you mean a single strand (e.g., tied at fork and pouch), or a single strand folded back and tied only at the pouch, which really acts like two strands? Thanks.My newest configuration is 1745 tubing cut to 17¼". It pitches a .38 cal. lead ball w/34" draw 182 fps, but the clincher is the life. I retired the first set after 1467 shots. It was still working but power was down about 1 fpe. I am on the second set with over 1500 shots and see no real noticeable power lose. I still use double bands pseudo tapered and a cocktail, but for general shooting that single loop of 1745 working great for me and my pocket book is thanking me.