Altaros Beginner. Bought Tuned Aselkon mx5 6.35 need advice/help

Hello everyone! Long story short, I have had 1 pcp gun before, 6 years ago Walter dominator 5.5, so i am beginner with these. Now i did buy Tuned Aselkon mx5 with Cnc machined 20cm silencer(the guy was cnc worker) that has shot max 300 rounds, and have alot questions. It is the 60 joule factory model. There is no outside regulator, but there is? somekind "regulator" on there when you remove Air bottle or something. The guy had Drilled the hole there to 0.5mm bigger(he did not remember what it was on stock, he said maybe 2.2-2.5), and if i did understand, some other hole also 0.5mm bigger. Idk did i hear right, that the "regulator" was stock 130bar, but now it is based on his Calculations 160 bar. Also the Spring is Tightened 2 rounds. It is currently shooting JSB Exact king heavy 2.2/33.8g pellets 74-77 joules (chronograph). It is pretty damn accurate, I have not shot over 5 years, and did test shoot 1 magazine, and landed full magazine to 60-70m distance in size of Snus can (around 10 cm wide and 10cm high, or what is the size of Snus can). So now comes the questions! How much more i can get power out of this, and what i need to do ? Also, he has not try slugs, and i am going to go buy Slugs, So what Weight slug should i pick and how long do go in the magazine ? i did read somewhere it was 12.7mm ? not sure at all, so i wont buy wrong size. Zan/H&N and Altaros lead free is available. Also, Should i pick the size of 6.35 or 6.34 ? i would realy appriciate all help i can get :).

Oh i did forgot, he allways filled it to 200 bar that is the max? or is it 220. And shot 20 accurate shots, then it drops to 160bar and then he did fill it again.
 

https://aselkonarms.com/urun/pcp-mx5/


Not familiar with your gun, but a quick search found this. Maybe you could do the same?There is a specification chart that lists max fill pressure. YouTube is another source.

Did you mean 10cm or 10mm for you group size @ 60-70M? 10cm would not be a great group, 10mm would.
It’s hard to answer performance questions about a gun that has been modified. Testing on your part is the answer. Each one (gun) is an individual.
 
thanks alot, the guy was also very beginner shooter, i need to test and practice. He just throw it "well they will go 80mm group" or something like that. Hmm, what size (lenght) slugs i can for sure put in my magazine ? or how do i measure it, what is the max lenght ? im going tomorrow buy slugs. What weight slugs you think i should buy ? if he has been shooting Jsb exact king heavy, that are 33,95 gr, and Near 80 joules with that one. How heavy i can use if it fits magazine ? can i use like 42-46g, the most heavy ones? Would like to have pellet/slug for maximum distance/accuracy and also other one For maximum penetration for fun shooting trough things, lol. I dont know what like 80 joules can go trough ?

Ofc it is not a top Pcp rifle, i did pay only 300 euro for it, with 100e scope attached on it, and Borner 310bar pump. Next one i buy, will definately be Huben k1 .25. I have allways wanted that one, or similar Semiauto with +100J in .25 category.
 
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I can’t tell you what max length slug will fit your magazine. I can tell you that a slug of equal weight to the JSB 34 gr. pellet will shoot at a lower velocity, without changing the settings on your gun. Slugs have more bearing surface, therefore more drag going down the bore. So I don’t think you’re going to get very good performance from heavier slugs, unless you just want to lob them at low velocity.

The velocities stated in the specifications for your gun are probably for 25gr. pellets.
 
I can’t tell you what max length slug will fit your magazine. I can tell you that a slug of equal weight to the JSB 34 gr. pellet will shoot at a lower velocity, without changing the settings on your gun. Slugs have more bearing surface, therefore more drag going down the bore. So I don’t think you’re going to get very good performance from heavier slugs, unless you just want to lob them at low velocity.

The velocities stated in the specifications for your gun are probably for 25gr. pellets.
thanks for the reply, that might be true for 62 joule stock version? i have not use it when it was stock, seller told me the difference is "day and night". I did call the seller and ask, it has been adjusted to that JSB 34g, 271 m/s average, so like 900 fps.
 
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271m/s = 889 fps (y) Savvy seller. A 34 gr. pellet flying @ about the same velocity as a 25 gr. pellet is definitely an energy boost. Sounds like you have all the answers.
Today i was testing it. Damn, pretty nice thing. I have not shoot for several years, i did adjust scope and managed to get 20-30mm to 70m distance. There is no way i could shoot the stock "70" or 75 round with it, i would guess more likely 40 with 200 bar. After 21 shots, it did drop from 200 to 110 bar. My next question is, There obviously is some Regulator inside the gun, the guy i bought it, did say he did fill it every time it did drop to 160 bar ? why ? so like 10 shots. The regulator should be something like 160 bar now. Does it mean when it goes under 160 bar, it wont be so powerfull anymore ?. I am not sure what Weight slugs i should start, and what would be max weight. But sure can go above that Jsb 34g.. but slug is different ?. I did fun shoot 300m to big targer, damn, it fly there "easy" like 1.5-2 sec and heard "SNAP" and i was using on those 3 shots H&N Silver point 24.3g, And there was "only" 120-130 bar left in the gun with those shots.
 
Today i was testing it. Damn, pretty nice thing. I have not shoot for several years, i did adjust scope and managed to get 20-30mm to 70m distance. There is no way i could shoot the stock "70" or 75 round with it, i would guess more likely 40 with 200 bar. After 21 shots, it did drop from 200 to 110 bar. My next question is, There obviously is some Regulator inside the gun, the guy i bought it, did say he did fill it every time it did drop to 160 bar ? why ? so like 10 shots. The regulator should be something like 160 bar now. Does it mean when it goes under 160 bar, it wont be so powerfull anymore ?. I am not sure what Weight slugs i should start, and what would be max weight. But sure can go above that Jsb 34g.. but slug is different ?. I did fun shoot 300m to big targer, damn, it fly there "easy" like 1.5-2 sec and heard "SNAP" and i was using on those 3 shots H&N Silver point 24.3g, And there was "only" 120-130 bar left in the gun with those shots.
 
As I stated before, I am not familiar with your gun so I have no idea what your regulator is set to. I thought you mentioned a chronograph, but not sure if you have a chronograph or the seller had the chronograph. That is the way to tell where your velocity drops off and therefore, where the regulator is set... approximately. Another way would be to have a VERY stable shooting position and shoot on a clean target... 50M minimum... and see where the shots start to hit at a lower and lower point. That would give you a good guess where the reg. is set.

When your pressure drops below the regulator set point, your velocity will begin to drop, and it will progress faster the further you go below set point. Slower velocity, less power.

If I were you, I'd forget heavy slugs for right now. As I stated previously, a slug of equal weight to a pellet will shoot slower due to drag in the bore. So, a 34 gr. slug will shoot slower there your 34 gr. pellet shoots now. In my opinion, stick to the 34 gr. pellets for right now... or try some 25 gr. pellets ... and find one that is accurate in your gun. You seem dead set on shooting slugs at long range. If that is so, I would try 25 - 30+ gr. slugs.

That's just my opinion, and I am certainly no expert. Just going from my personal experience with my .25 cal. guns.
 
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