Canadian Airgun Forum

We’ll just recently I decided to buy the Seneca Dragongfly MK2, as I wanted something that would allow myself to be independent as well as ready to go. The Stormrider PCP is my baby but I’m allows needing my fire buddies to fill my tanks.

So I purchase this model from Wes @ airgunarcheryfun, as he is my go to guy. Thanks again Wes.

It’s been decades since I’ve owned any pumpers but I did start my step son off with a crosman 766 a few years back. Now he own CR600W and loves it.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

For the money the build quality and fit and finish were top notch. I just love the simplicity of these snow peak airguns.

Out of the box I found the cocking effort to be extremely heavy as well as the trigger pull (3.5lbs). I worried that the bolt handle may fail over time with such resistance to cock the action. But these pumper can not have a balanced valve/ hammer spring setup due to the fact the pressure valve needs to completely empty after each shot to assure consistent air pressure from shot to shot. So I knew I needed to reduce the pressure valve spring tension so I could reduce the hammer spring tension somewhat. After my 6 times disassembling this model and slowly making changes I have the trigger down to 2.5lbs with very little travel and now the cocking effort is exceptable. Once pumped up past 10 pumps it seems to retain a bit of air in the valve so I need reduce the valve spring a hair more.

I also removed the trigger blade and rolled the inner face as I hate blocky triggers, specially when they pull weight is higher then 1.5lbs. While I had it out I also adjusted the set screw in the trigger blade to reduce the travel, if it’s going to be heavy it better be a short pull.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

Before shooting I removed the barrel for cleaning, polishing and a re-crown, just like I did to my stormrider. The way this models muzzle end cap/ front sight mounts to this rifle, always be aware the thread adapter is also tensioning the barrel so always use caution when reassembling.

Out of the box I found many screws loose so I’ve addressed that using ‘pipe thread tape’ so it can still disassemble for tunning. Once tuned and proven some fasteners will get the lok-tite.

Like most pumpers the pump end of the stock doesn’t lineup 100% to the fixed rear stock but that’s due to allowable tolerances in the pump mechanism. But I can live with it. I also shimmed the pump arm in the wood stock a bit to reduce this misalignment a bit.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

Well after hours of thinking I find I have a question that I’m not sure if I’m right about. I like to do a lot of theory work before making mods or adjustments on airguns, as it doesn’t take much to go from great to garbage.

In this model of rifle the valve uses one spring which controls both the check valve and the firing valve. That being said everytime I reduce the spring in the valve I also reduce the spring tension on the check valve. So my question is this: Will the check valve tension affect the compression of the air from the pump? I really think it won’t and it’s the hole size from the pump chamber to the valve that creates the restriction to flow. Reason I ask is I’m so close to being happy with my tune that I just don’t want to go backwards or go to far that all is lost. Plus its a heck of a lot of work disassembling this model, plus I find it spits a lot of oil after a reassembly. Thanks everyone

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

This rifle definitly requires some wing span to pump using the two handed grip, which isn’t a problem for me. But my young teens had a heck of a time pumping and complained about the weight they are use to the CR600W. They also complained about the 3lb trigger as the CR600 is half that weight.

Definitely at 15 pumps this model hits the marketed velocities, using 7.33gr lead pellets. 15 pumps gets old quick after years of PCP. But this rifle fills a practical void in my collection so I’ll live with a heavier trigger and hope to get 3/4” or better @30yds. Pumpers are work out, when testing and tuning, which may also play apart in my group sizes.

As much as the above complaints bother me, I do really enjoy this model. Once the sun comes back and I finish the carbon barrel sleeve, I’lll get shooting it.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

Nice work. I have dragon fly .22, from Wes too. I didn't do anything on mine as it is very accurate at 40-45 yards( can hit a spoon countinusly in this range., which is good enough-afterall it is just about 650-680fps with 13.3gr and in this velocity 40-50yard will be the best range for it. Although I can strech it out to 60-70 yard but after 50 wind drift start to make more errors
Trigger is not a problem for me as I am get used to crosman springer triggers, they are much heavier and very long travel compare to this.
The only problem is, I noticed with10-12 stroke it already reached best fps. After 12 it actually start declining. I'm not sure if it is just not break in enough however it is not really a bad thing as I can save hell lot of pumping.

_________________
A Bunch of
495fps Springers/CO2/PCP
PAL Rated plinkers and target rifles
Finally get my PAL after 1 year waiting

10-12 pumps is all I’m willing to pump myself.

The pump piston to valve clearance is what I’m slowly reducing now. Not wanting to crash them together and risk bending the piston, I’m reducing the clearance by 0.015” each time I disassemble. I don’t have long enough precision measuring tools so this the best way for me.

As found measurement from the pump rod to piston face was .740”, I’m now at .760

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

I'm quite surprised at the power level of this rifle, almost 17fpe with a heavy pellet in .177.
The .22 might be higher?

_________________
Best Wishes
Daryl

It is about the same FPE in .22 as the link below according to Seneca.
It is also very consistent as tested, usually only have 2-5fps difference with same pellet and same amount of pumps. Actually I usually only put 8 pump at about 40 yards, with JSB exact 13.4gr it is about 650fps and getting extreme accurate. And if play in basement 2-3 pump is good enough for about 8 yards, and usually can put pellets in the same hole at this range. Had to say it is the best pumper so far.
I also play around with 880s but it cannot be compared, even at 8 yards the groups are usually about quarter size.

https://airgunarcheryfun.ca/wp-content/ ... 995356.jpg

_________________
A Bunch of
495fps Springers/CO2/PCP
PAL Rated plinkers and target rifles
Finally get my PAL after 1 year waiting

I’d have to agree with you Atlas, this is a great pumper. But I know I can get a bit more out of it by making the compression stroke a bit more efficient by slowly dialing the piston to valve spacing. My last adjustement got me 10fps @4 pumps. Right now I’m shooting 10.34 (.177) @760 with 8 pumps and close 800 @ 10 pumps. I’d like to get close to 800@8 pumps ( if it’s possible) then I’ll be totally happy with this model.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

Well I’m doing my best do what I can on this Dargonfly MK2 barrel sleeve. Not wanting to have any open sights on this rifle, I’ve had to do some thinking as to how I could put a barrel band at the front. I find a floating barrel whips too much during the pumping process. I’m only at the test phase at the moment but this what I’m trying at the moment.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

It’s been a slow go as I don’t have any extra parts kicking around to make mistakes. But so far I’m liking it.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

As it sits in its rough draft form, the pump seems to work flawlessly with not interference from the new modified barrel band. Unknowns to me ( this barrel band has never been used, just stored for those just in case moments) the tensioning screw has no threads to engage with the bolt. So now I either have to up size the screw ( not sure what size yet) or I thinking about epoxying the band to front pump tube cap. More thinking to do….grr

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

Well I got back to the DFMK2 tonight. So I now have the piston set to .300” gap between the piston and piston rod ( the gap where the jam nut is). So now this pumper is giving me 700FPS with 10.34gr@8 pumps. I think I’m closing into the max efficiency as the piston shouldnt have less thread engagement then the piston thread diameter, for strength purposes. I maybe able to get another 10-15 fps, but that maybe not be worth the possibility of a damaged piston.

This model is very simple and not hard to work on, and no specialty tools needed. It feels nicely balanced due to the longer wooden fore end/ pump handle. A good selection of Allen keys, 17mm open end wrench and a Philips screwdriver and one can do everything.

And when assembly use small Allen keys to fine tune hole alignments with the valve and piston rod install. Do note the piston rod is pinned to the pump mechanism with small pin, there is a small hole in the pump tube where you must align in order to remove the pin.

_________________
Steoger XP4 .177
Hatsan AT44MW-10 .177
Daisy 953S .177
Artemis CR600W .177
Diana Stormrider .177
Seneca Dragonfly MK2 .177

That's 11 1/2 fpe - what happens now at 10 pumps?

_________________
Best Wishes
Daryl