Less recoil, and improved accuracy. At the price of power and speed. Ohh, and some time and money!
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HW/Weihrauch Skirtless piston
- Thread starter Temesvar
- Start date
Only did it on my 77k as despite what everybody says, found it hold sensitive, hard work, and unpleasant. In the end opened TP to 3.8mm (to compensate for weight loss) running a meteor spring for early 11's. Truth is I don't like super fast cycles really, but....it was something to do....
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you are in the sweet spot. 15 ft lbs in a .22 nets you sighted in top of dot at 30 yards good to 50 with 1/4 inch drop
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Try a.177 Longbow if you like snappy fast.
. Same gun in .22 might be one of the best built 12 ft lb guns. Of course tuned wellUpvote 0
Hard to beat a sorted .22 springer (but then I'm coming at it from a hunting perspective only!).Try a.177 Longbow if you like snappy fast.
Am a sucker for a chifle though, and have a .177 TH208 arriving soon (missing its piston/ trigger) as a project. Have a T01 piston and trigger set on the shelf for the easy route, but....considering sleeving it down to 24mm. That transfer port though....its a lengthy beast
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I hunt. I rarely paper punch. Getting around a long port is tough. I’ve tapered reamed before but you need more piston weight and pre load to off set the volume gain. Especially in .177.Hard to beat a sorted .22 springer (but then I'm coming at it from a hunting perspective only!).
Am a sucker for a chifle though, and have a .177 TH208 arriving soon (missing its piston/ trigger) as a project. Have a T01 piston and trigger set on the shelf for the easy route, but....considering sleeving it down to 24mm. That transfer port though....its a lengthy beast
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Will have to see what stroke I can squeeze out of it before making any decisions (assuming it's close to 90mm already?). The set up on the recent cometas has proven to make for a nice cycle, despite the accepted wisdom surrounding what makes for a good tune, but then again....I guess that boils down to personal preference again
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I missed that you were inquiring about skirtless for a 97.
I do like the skirtless set-up in my TX, but it’s target only and sub-12. Running bronze bearings machined for fit in the comp tube, and set as far apart as possible helps with stability. Having a perfect or near perfectly straight rod is necessary too.
As with any tune, everything needs to be in balance….piston weight, spring rate, port size, stroke and pellets being used. Go too light on the piston, too light on spring, too small on port size or too heavy on pellets and you may see some accuracy robbing bounce. I’ve got mine set up at 90mm stroke and just over 155 grain piston weight including tophat and tuned for 7.87 to 8.44gr range.
Steve
I do like the skirtless set-up in my TX, but it’s target only and sub-12. Running bronze bearings machined for fit in the comp tube, and set as far apart as possible helps with stability. Having a perfect or near perfectly straight rod is necessary too.
As with any tune, everything needs to be in balance….piston weight, spring rate, port size, stroke and pellets being used. Go too light on the piston, too light on spring, too small on port size or too heavy on pellets and you may see some accuracy robbing bounce. I’ve got mine set up at 90mm stroke and just over 155 grain piston weight including tophat and tuned for 7.87 to 8.44gr range.
Steve
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Very nice, and interesting....my 77k has the 25mm comp tube and I ended up at about 165gr and 90mm stroke
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