I’d recommend flat hop bucking and rhop or just the the flat hop.
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yes, I also expected minimum 70m eff. range... 
Already tried with many different hopup rubbers soft to hard. now a Maple leaf 70 is installed with flathop. Flight path seems ok. hop works as it should. still no range.
does anyone use it with close to 500 FPS with harder spring? (120-150?) May be too much for stock setup? Now wondering to put back a weaker spring close to 400Fps...
Heard of any issue with the barrel size or length? (though it does have same issue with tight bore, normal bore, shorter, normal) thx
Already tried with many different hopup rubbers soft to hard. now a Maple leaf 70 is installed with flathop. Flight path seems ok. hop works as it should. still no range.
does anyone use it with close to 500 FPS with harder spring? (120-150?) May be too much for stock setup? Now wondering to put back a weaker spring close to 400Fps...
Heard of any issue with the barrel size or length? (though it does have same issue with tight bore, normal bore, shorter, normal) thx
sounds great with 405fps! I just want to achive that 80 yards effective...whatever the fps is
have you tried what it does with higher close to 500?
can you please send your build, what are your internal parts?
have you tried what it does with higher close to 500?
can you please send your build, what are your internal parts?
Unfortunately there's not a whole lot of secret parts in it. Most of it is hand work. R hop, home made mosfet, altered bucking, and a whole lot of careful fitting. Most of the internal parts are stock including the barrel. The magic is in the hop. It's heavily modified. Different length, radius, etc. Gears are stock, piston is stock, I use an M110 spring and a 9.6v nunchuck. The magic is in how the spring releases and how efficient the hop is.
Something a lot of people forget is that with more fps you need more BB. At 405fps, a 0.3 works really well with an r hop. At 450 fps, I get good results with .4's. hotter than that and they go off course. You can 'over clock' a BB. It's just a little plastic ball. The path and distance of the BB is dependant on how the spin is induced and the duration. None of that comes in a kit. You have to tune it.
Any gun here with an electric motor is regulated to 420 fps and under. Because it has the potential to be made full auto, it's capped. Bolt guns can go to 500 fps here, but even then, there isn't much advantage considering the weight of ammo available and the terrain we play on. In this part of the world, with heavy foliage and such, we do need penetrating power to get through leaves, but the likelihood of getting 250 feet in a straight line through the trees is almost impossible. So, more importantly than overall distance, the BB needs to fly absolutely straight and predictably every time. That comes from tuning.
There's a misconception about what people do to a gearbox will matter. In a way it does, but in a semi auto rifle, it simply provides a measured and timed shot of air. That's it. Nothing more. The effectiveness of the shot is all in the front end of the rifle. taking that measured shot of air and maximising the transference of energy to the BB...there's the magic.
Oh, and by the way, 500 fps is getting ridiculous. Somebody's going to get hurt.
Something a lot of people forget is that with more fps you need more BB. At 405fps, a 0.3 works really well with an r hop. At 450 fps, I get good results with .4's. hotter than that and they go off course. You can 'over clock' a BB. It's just a little plastic ball. The path and distance of the BB is dependant on how the spin is induced and the duration. None of that comes in a kit. You have to tune it.
Any gun here with an electric motor is regulated to 420 fps and under. Because it has the potential to be made full auto, it's capped. Bolt guns can go to 500 fps here, but even then, there isn't much advantage considering the weight of ammo available and the terrain we play on. In this part of the world, with heavy foliage and such, we do need penetrating power to get through leaves, but the likelihood of getting 250 feet in a straight line through the trees is almost impossible. So, more importantly than overall distance, the BB needs to fly absolutely straight and predictably every time. That comes from tuning.
There's a misconception about what people do to a gearbox will matter. In a way it does, but in a semi auto rifle, it simply provides a measured and timed shot of air. That's it. Nothing more. The effectiveness of the shot is all in the front end of the rifle. taking that measured shot of air and maximising the transference of energy to the BB...there's the magic.
Oh, and by the way, 500 fps is getting ridiculous. Somebody's going to get hurt.
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