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Huben Huben GK1 Target Groups (photo thread)
- By steve-l
- Air Pistols
- 61 Replies
Like most things in life, compromises must usually be made everywhere. Revolvers are no exception. In rifles bullet jump after ignition is controlled by limiting the headspace when cutting the chamber to just a few thousands of an inch. The shorter the bullet jump the lesser the shock of striking the rifling because the bullet is traveling slower. That, if great enough will upset the bullet's balance which causes inaccuracy. A revolver has more issues that must be dealt with as well, like magazine alignment to the barrel and the physical difference in projectile length in relation to the length of the magazine's bore. Revolvers use a forcing cone at the mouth of the barrel to compensate for magazine misalignment, that extra length causes a longer bullet jump. Add that to a potential magazine length difference with a bullet and that jump and subsequent shock becomes even greater. For example, yes you can shoot 38 special cartridges in a 357 magnum pistol, but because of the greater distance the bullet must travel, the 38 special is not as accurate as the same bullet loaded to a 357 case. Well, the same rule also applies to the K1 and GK1,but we are dealing with much lower pressures and lower velocity, so yes, Greg is correct, but is this issue significant? I regularly use the 25.4 grain JSB pellet in 25 cal GK1s and they are much shorter than the magazine's bore, but the guns still shoot one ragged hole at 25 meters from a rest and I off hand usually hold a 1" group at that same distance.If you look up YT vids by Gregor K he recomends seating the pellets all the way for best accuracy
I think Kelly at Krazcool agrees as he sent a pellet seating pen with my last gun purchase
Let me give to you another example this with an air gun. In the earlier models of the FX air rifles, they used smooth bore barrels that were only rifled at the very end of the barrel. Pellet jump was many inches, yet they were amazingly accurate.
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Thomas Air Thomas Air Rifle #0411 is smoking it
- By boscoebrea
- PCP Airguns
- 21 Replies
Beautiful,love the machine work,you have no excuses now,
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What did you do airgun related today.
- General Discussion
- 2416 Replies
Had retuned the uragan for more power yesterday. Did some testing on slug performance. At roughly 32-50 fps higher velocities.
All shot into a Medium to simulate a pigeon, a roughly 2.25" diameter ball of Lard and Beeswax wrapped in a thin leather pouch, Backed with a fleece roll.
All shot into a Medium to simulate a pigeon, a roughly 2.25" diameter ball of Lard and Beeswax wrapped in a thin leather pouch, Backed with a fleece roll.
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What pistol did you shoot today
- By borne2fly
- Air Pistols
- 2167 Replies
The wife wants to learn to shoot some of my PB's. She's never shot anything before so I figured one of the replica airguns would be a good start. The Springfield 1911 came to mind. Turns out, she likes it ... a lot. I might never see it again
Once she gets consistent groups we'll talk about playing with the noisier stuff.
Once she gets consistent groups we'll talk about playing with the noisier stuff.
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EDgun Tuning questions for Edgun Matador R5
- By G1122123
- PCP Airguns
- 13 Replies
These holes are supposed to have air coming out of them when you fire right?
I assume from the design
I assume from the design
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Latest gx cs4
- By cyknife
- Tanks, Pumps, Compressors
- 9 Replies
Well I just got a CS4 with a build date of 3/15/25 and it already incorporates the radiator rotation mod. They also put a protection diode across the motor leads. I noticed this during an hour meter install. I'm impressed with this compressor especially at 495$ to the door from GX. That's for the external power supply version of course. Hoping for long-term success with this compressor.
