Yogi,Maybe I am misunderstanding something but I think you're missing a zero. I believe he said he's shooting at 100 yards.
Mad Dog? Did someone call my name?Yes, I was referring to 100 yards. The results have improved over time, but it is a frustrating venture. I clocked the velocity earlier today at 588.67 FPS with Ruger Superpoint in 17gr at the muzzle. This is very disheartening, for one of the reasons I settled of the D-EMS was it's advertised velocity. At the time of purchase it was advertised at 900 FPS, the following day pyramyd air corrected the exaggerated velocity to 860 FPS with a 4.3 grain round. Why they chose the 4.3 grain round to be the standard at which they advertised velocity is beyond my comprehension at this moment. I have yet to achieve a velocity over 700FPS with the current selection of pellets, my maximum velocity was around 686 FPS before the Vortek event.Upon last examination of the internals of the rifle, I discovered the piston had mushroomed a bit towards the rear. This was out of attempting to charge the rifle with the wrong spring, and was done so with only a modicum of force. It is this mushrooming that I believe is the direct causation for the lower velocity levels I am now receiving. The mushroomed bit is causing drag and slowing down the movement of the piston. With a solid oak dowel and a soft hammer, I will see if I cannot straighten the piston shaft out. Then I will take to removing all the sharp edges of the piston gently with a small file or honing compound. Hopefully, this will give me the result I have been searching for.
Are you sure the piston is mushrooming? Some pistons have a small expanded section and the rear that is meant to contact the compression tube (so the piston contacts comp tube at rear of piston and the seal contacts comp tube at the front of piston). Flatting out the mushroomed part may just make your piston loose. Try sliding the piston in the main tube without any spring attached. Should be some resistance (up to a couple of pounds) and generally the resistance is from the seal. If you move the piston in the comp tube with no seal on the front it should move freely.
A lot of guns come from the factory pretty close to their maximum power because they know that speed sells. That said, you might be able to get a little more speed by adding a few washers in front or in back of the spring. Pay attention to the shot cycle if you do this because if you over-space it can make the shot cycle harsh and that's not good for the gun and really not good for a scope. Also, if too much spacing is added the gun may not cock and you'll have to remove spacing until it does.
Just wondering, but what scope are you using. A 16fpe gun spitting out 16 grain pellets has a drop measured in feet on inches at that distance.Don't you run out of elevation and reticle?
My biggest concern is exactly where to place them.
Quote from: wchilton on June 05, 2021, 12:32:35 PMA lot of guns come from the factory pretty close to their maximum power because they know that speed sells. That said, you might be able to get a little more speed by adding a few washers in front or in back of the spring. Pay attention to the shot cycle if you do this because if you over-space it can make the shot cycle harsh and that's not good for the gun and really not good for a scope. Also, if too much spacing is added the gun may not cock and you'll have to remove spacing until it does.My biggest concern is exactly where to place them. I have some thick lug washers left over from replacing the passenger side rear axel shaft on the crown vic, one of those might be large enough. The only other things I can think about to increase the power, are frankly, out of my pay grade at this point in the game. There was that entire mechanical engineering degree that I neglected to earn, I just had to grow up to be an idealist to pursue theology and philosophy. Bugger me... Quote from: Yogi on June 05, 2021, 06:56:48 PMJust wondering, but what scope are you using. A 16fpe gun spitting out 16 grain pellets has a drop measured in feet on inches at that distance.Don't you run out of elevation and reticle? By sheer chance/luck I purchased a dovetail to picatinny rail adapter that gave me a few extra MOAs to play around with.https://www.pyramydair.com/product/utg-drooper-scope-rail-11mm-to-weaver-adapter-compensates-for-droop?a=4191Although if asked, I wouldn't recommend that particular rail adapter with my particular rifle. The stop pins are a smaller diameter than the holes provided for it, and have nothing to prevent the stop pins from being installed to far down into the action of the rifle. The scope that is mounted to it, is the UTG Bug Buster. Which I am rather pleased with, and feel it was a good deal. I had read about it on several websites, and had wanted to give it a try someday. https://www.pyramydair.com/product/utg-3-12x32-ao-bug-buster-rifle-scope-mil-dot-reticle-1-3-moa-1-tube?a=7972I still have more clicks left in the scope, probably two more full turns, which won't be breaking any distance records anytime soon. The biggest issue with the scope is the 3 clicks = 1 MOA configuration, requiring a little extra arithmetic to figure things out.
Yogi,I have one of those 3-12x32 Bug Busters on my HW30S. It is in fact a weird 3 clicks per MOA. No clue why it is designed that way.
How's it do at 25-50? I'd imagine quite a drop at a 100 with a 15-ish ftlb. rifle. Pellets like H&N FTT's, JSB 15.9's and AA 16's should do alright when pushing longer shots. In all honesty, I think DIANA side and under leavers are better suited for longer shots, in my opinion. They are a bit more powerful and I find much easier to shoot accurately. That's a lot to ask (100 yards) from any springer. The lighter 34 at full power is a fine rifle, just may be the wrong tool for the job. I'm sure its been done though.
Quote from: Bill_in_TR on June 06, 2021, 10:59:16 AMYogi,I have one of those 3-12x32 Bug Busters on my HW30S. It is in fact a weird 3 clicks per MOA. No clue why it is designed that way.Strange indeed....How many clicks for a full revolution?
Quote from: Yogi on June 06, 2021, 02:03:55 PMQuote from: Bill_in_TR on June 06, 2021, 10:59:16 AMYogi,I have one of those 3-12x32 Bug Busters on my HW30S. It is in fact a weird 3 clicks per MOA. No clue why it is designed that way.Strange indeed....How many clicks for a full revolution?Let me go check, my rifle is in the other room... Surprisingly, 24 MOA per revolution. So, I would adjust my estimate down to a rotation and a half left on her. The UTG Drooper is said to provide an additional 10' @ 30 yds. What that would be at 100 yds? I got around 33 additional inches. This brings into awareness the other issue I have with the UTG Drooper. If configured like it is currently, you can shoot at long distances, but you will be unable to correctly aim at anything less than 50yds. If you swap around the rail, then the inverse is true. So, it is a double edged sword.
Either way, you are looking at massive holdover......
Quote from: Yogi on June 06, 2021, 07:18:43 PMEither way, you are looking at massive holdover...... Holdover??? Is that like a layover, but they hold onto your luggage and refuse to give it to you?[/quote(Airline policy if over 3 hours you need to collect it and recheck it for your next flight. -Y
A new trigger issue has arisen, the trigger fully compresses, but the upper hook does not release. It feels like the trigger is sliding past the release. I have disassembled the rifle and inspected the trigger and did not find anything noticeably wrong.Any ideas.