The weekend with my Evol HPS (high powered slug) tuning it to be an air sipping 18.13 monster!

I had posted this in the Evol thread but wanted to share with the rest of you

So the original Evol HPS is a fantastic rifle but did not fair so well with my slug testing, come to find that when it was released it was setup for a slug by NSA that Nick no longer produces. All that said I didn't really get it to be a slugger, I just wanted a second evol.

So friday I mounted my MDTTac SRS Short stock in FDE , took it out and shot some 25.39 monster redesigns, and well, you all were right when you warned me about the incredible inconsistency within the tins of these pellets. I opened a new tin, shot some groups, out of 10 I got one that was "acceptable" to me.

That brings me to Saturday. Saturday I degassed the rifle, tore it down, and by god are these things easy to work on and tune. It was actually a pleasurable experience, not a million and 1 little pieces to remove, special tools needed (aside from the barrel removal tool) , or headaches, purely simple.

Saturday I got an absolutely incredibly consistent tune but others had questioned the air usage, only getting 55 or so shots shooting 18.13 from the rifle and as the pics show, it was damn consistent, and accuracy was there.

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Well, thanks to members I chat with regularly questioning the air usage because Sunday, I wanted to tune some more!!!

I finally ended up here,

An Evol HPS Shooting 18.13 for 135 shots a fill at ~30 FPE , extremely quiet, extremely docile, and extremely accurate with such a light projectile.

I then got rid of all my MRDs. LMFAO!

I am loving the addition of the MDTTAC stock (the LOP is perfect for me) but I am still finding it hard to get comfortable behind the high scope , I noticed this when it was on my HUBEN at NAC, as well as when it was on the HPS with its original magpul PRS stock. I am thinking about going with a smaller objective lens to bring the centerline of the scope closer to the centerline of the barrel and provide me with a more comfortable position. Something with a better eye box and eye relief for me too. I realize if I go below 50mm objective I may sacrifice some mag.

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Not to rain on your parade....and maybe I'm misreading....but 18.13s @ 900 are more like 32-33fpe, not 45fpe.

Regardless, congrats on the large shot count and accuracy you're seeing from the 18.1s after your adjustments to the gun. I am am also a fan of not running a gun at the edge of what it's capable of, powerwise.
 
Not to rain on your parade....and maybe I'm misreading....but 18.13s @ 900 are more like 32-33fpe, not 45fpe.

Regardless, congrats on the large shot count and accuracy you're seeing from the 18.1s after your adjustments to the gun. I am am also a fan of not running a gun at the edge of what it's capable of, powerwise.
I am going to edit that! Good catch, you are absolutely right! I forgot to change the numbers in the settings on my FX Pocket Chrono, since they did an update its more cumbersome and I was too ecstatic.
 
Great tune! JSB's .22 18gr are the most versatile pellet in my humble opinion! I hope you really didn't chuck your Redesigns 😳...just need to get an inexpensive pellet sizer to get them much more consistent 👍.....
I didn't throw them away but I did sell them! i dont sort , i refuse to haha maybe that is what will hold me back from being a phenomenal shooter?!
 
I didn't throw them away but I did sell them! i dont sort , i refuse to haha maybe that is what will hold me back from being a phenomenal shooter?!
LOL! You are already a fantastic shot! Those .22 Monster Redsigned are notorious for not shooting accurately unless sorted and sized, definitely not your fault! I know, I shoot them occasionally thru my .22 RAW, same thing with everyone else, needs sizing to get accuracy. That's why like you, I detuned mine to shoot the 18gr....😂👍
 
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Shooting my .177 Saturday, and me normally shooting tethered.
But ! when i do something else i always close the valve on the 12 L bottle, but i forgot that at some stage, and i shot a lot of shots after that until i was finally not able to see where my little slugs landed at 82 yards.
By then i was also down to 130 BAR or so on the bottle on the rifle.

My REG pressure are down to 80 bar, and TBH next time i shoot i will try and turn it even lower.

Still push the 13 grain Zan slugs at 1010 FPS
That is with the Mavericks " micro adjustment " screw all the way in, and on hammer wheel setting #4, with a heavier weight

I will probably have to bring my original hammer weight, CUZ i fear i am hitting the valve as gentle as i can, at least going to hammer setting #1 and i only see like 10 or so FPS change.
The Maverick sound like a blowpipe more than a airgun :)

The shot string are still pretty bad though, on a magazine of 21 shots its like 15 - 18 FPS between slowest and fastest shot, and a couple of each in that many shots, so saw tooth graph in the chrono for sure.
Still fairly accurate, at least enough to enjoy shooting 82 yards.

If someone made a automated pellet sorter ( head size ) i would so shoot more pellets, but i absolutely can not be bothered doing that manually, even if i as a not working person have nothing but time.

TBH fellow .177 shootrs shooting at 100+ BAR i don't get that, or that is i do if they use the original hammer, but in the 700 mm barrel, with a heavier hammer ( i use the lightest brass hammer in a kit i got with 3 brass hammers in it )
The weights are of course not numbered with weight, but it is for sure heavier than the original steel hammer weight in a .177 FX rifle.
 
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I had posted this in the Evol thread but wanted to share with the rest of you

So the original Evol HPS is a fantastic rifle but did not fair so well with my slug testing, come to find that when it was released it was setup for a slug by NSA that Nick no longer produces. All that said I didn't really get it to be a slugger, I just wanted a second evol.

So friday I mounted my MDTTac SRS Short stock in FDE , took it out and shot some 25.39 monster redesigns, and well, you all were right when you warned me about the incredible inconsistency within the tins of these pellets. I opened a new tin, shot some groups, out of 10 I got one that was "acceptable" to me.

That brings me to Saturday. Saturday I degassed the rifle, tore it down, and by god are these things easy to work on and tune. It was actually a pleasurable experience, not a million and 1 little pieces to remove, special tools needed (aside from the barrel removal tool) , or headaches, purely simple.

Saturday I got an absolutely incredibly consistent tune but others had questioned the air usage, only getting 55 or so shots shooting 18.13 from the rifle and as the pics show, it was damn consistent, and accuracy was there.

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Well, thanks to members I chat with regularly questioning the air usage because Sunday, I wanted to tune some more!!!

I finally ended up here,

An Evol HPS Shooting 18.13 for 135 shots a fill at ~30 FPE , extremely quiet, extremely docile, and extremely accurate with such a light projectile.

I then got rid of all my MRDs. LMFAO!

I am loving the addition of the MDTTAC stock (the LOP is perfect for me) but I am still finding it hard to get comfortable behind the high scope , I noticed this when it was on my HUBEN at NAC, as well as when it was on the HPS with its original magpul PRS stock. I am thinking about going with a smaller objective lens to bring the centerline of the scope closer to the centerline of the barrel and provide me with a more comfortable position. Something with a better eye box and eye relief for me too. I realize if I go below 50mm objective I may sacrifice some mag.

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Why don’t you add to your comb ( where your cheek rests) by putting a block under the plastic part, or even possibly a couple spacers under with longer screws? I find a slightly higher scope to help sweeten the flat spot in the trajectory compared to the distances i shoot. If you’re right above the barrel it brings the flat spot too close
 
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NICE TUNE!!!

I have mine a little slower than yours and am getting around the same numbers. Shooting in the yard has been a blast, though I am working on finding some land to hunt on as well.

I agree with the tearing these down and working on them, they are a breeze and honestly fun to do.
What's your regulator at man? Also what barrel length? I'm just curious the differences in tune needed in relation to barrel length.
 
LOL! You are already a fantastic shot! Those .22 Monster Redsigned are notorious for not shooting accurately unless sorted and sized, definitely not your fault! I know, I shoot them occasionally thru my .22 RAW, same thing with everyone else, needs sizing to get accuracy. That's why like you, I detuned mine to shoot the 18gr....😂👍

Thank you man I appreciate that compliment and glad there are others that thought like me!
 
Cool post and nice looking rig! I like MDTs stuff, too.👍
Thanks a lot man! I unfortunately have to remove the MDT stock, playing with it yesterday and figuring out that while the LOP is good the real-estate on the picatinny rail on the older HPS is much more limited unlike there is on my newer mini, so I cannot get good eye relief unless I really crook my neck back and I am not about to do that , defeats the purpose of setting it up to "fit me", and I despise using ANY type of rail extender lol It stinks because the LOP is great , until I put the scope on haha
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You inspired me to mess around with the setup on my .22 Mini. I don't need it for any high power shooting so I detuned it for the CPP 14.3gr @ 800 fps and JSB 15.89 @ 755. Right around the 20fpe mark.

I dropped the reg down to ~1250 psi according to the gauge and with a 3800 psi fill I am getting ~70 shots on reg. It's also much more quiet with the stock STO insert now and even more so if I throw a larger can on the end with w/ a DFL adapter.
 
You inspired me to mess around with the setup on my .22 Mini. I don't need it for any high power shooting so I detuned it for the CPP 14.3gr @ 800 fps and JSB 15.89 @ 755. Right around the 20fpe mark.

I dropped the reg down to ~1250 psi according to the gauge and with a 3800 psi fill I am getting ~70 shots on reg. It's also much more quiet with the stock STO insert now and even more so if I throw a larger can on the end with w/ a DFL adapter.
They are so easy to work on and tune I think it would be silly to not at least try something different, very easy to return it back where it was if need be. 70 Shots out of your mini?! Sean, I think you have no inspired me to do the same. I have to ask, whats the accuracy like with the 15.89 at that speed?
 
They are so easy to work on and tune I think it would be silly to not at least try something different, very easy to return it back where it was if need be. 70 Shots out of your mini?! Sean, I think you have no inspired me to do the same. I have to ask, whats the accuracy like with the 15.89 at that speed?
I'll try and do some 45 yard shots in my backyard tomorrow during the day and report back, but indoors @ 12 yards it's still one tiny whole for a full mag.
 
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