Recent content by icuppu

Spiraling at long range is because the translational velocity is slower than the rotational velocity, which does not slow down as much as the forward velocity, and past the apex, there is no upward component countering the downward gravitational force, only the gravitational component and the...

Consensus? I do not know, but the good => better => best caliber for extreme long range is the one with the biggest diameter because the bigger diameter, the heavier projectile you can fit, and said combination will give the biggest sectional density, and thus the form factor i in the Ballistic...

Wow! I say again... Wow! Makes my mouth water at the thought of a 22 caliber with an 800 mm barrel. I want to order one to be a 25 caliber (0.25" and not .25 cal, as that is less than the average human hair), with a 1,000 mm barrel, 1:26 inch twist, 26 degree crown, 0.25 inch throat before the...

JungleShooter, Any time you need help in looking at something, always look at it from someone else's point of view and it will either become totally confusing or clear as mud. The objective into understanding is to take the values one at a time, always label a number and write copius notes on...

Even hammers used as tools eventually fail, but what would you choose to use as a demolition hammer, the simple two part one, or the one that comes with an air condition cab? If the Maverick was improved upon as was the impact(s), there would be less sales because Maverick owners would only buy...

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Matthias, The coefficient of drag will be applicable to the projectile being studied as it will change with shape as it comes out of the muzzle. You could average it for a particular projectile coming out of the same barrel (caliber and type due to rifling lands and grooves width, depth, and...

Awesome! Amazing what two little spacers can cause so much preload. What Bar pressure did you settle at? How far from my 115 Bar? Lastly, do you get anywhere the 330 shots stated on many websites describing the 22 caliber FX Impulse M3? I'm thinking that marketing used the lightest pellet...

Marl3y, I forgot to mention the FX Impact M3 specifications, here they go: 0.177 35 fpe 375 shots 13,125 fpe total 4.9 fpe/gr. air 0.22 79 fpe 330 shots 26,070 fpe total 9.8 fpe/gr. air 0.25 89 fpe 160 shots 14,240 fpe total 5.353 fpe/gr. air 0.30 124 fpe 105...

Marl3y, I have a different take on looking at this situation, but first, I need you to fill your gun tank to capacity and write down the pressure, then start taking shots without valve spring, hammer spring, Macro/micro and write down the tank pressure drop at each shot or group of shots until...

Not to burst your bubble, but you cannot get an orange out of an apple, no matter how hard you squeeze. The laws of physics are not just really good ideas, and numbers do not lie, but you can lie with numbers. Since I failed mind reading 1-0-1, and I took it twice, let me begin with what is...

I hope FX takes over the market because I am waiting for an air gun to shoot 1,000 per fill, have a 100 cc bottle for light weight, 1M Bar, and sling pellets in the hyper velocity range that won't slow down to the transonic range at less than 1,000 yards. with a 10 dB report at the muzzle and...

wow! Cool spread sheet. What software language did you use to write it up? Is it Open Source so we can fine tune it to our specific guns such as caliber, pellet/slug mass, barrel length, transfer port diameter, regulator valve orifice area, barrel number of lands and grooves and their depth...

Nice! 9876.54