I put my deposit on a GK1 .25CAL, can't wait to get it, I'm reading everything on here about it, sounds like there's a difference in pellet size fitting in different years of production, anyone have 2024/25 , what pellets are you shooting?
Huben GK1 Pellet size
- Thread starter Michiganman313
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@Michiganman313 I like 25.4 grain JSB King Diabolo and 34 grain FX Diabolo pellets shot from my GK1 V3 in .25.
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The 25 shots great, The GTO pellets are the best, There are a lot of 25 pellets that fit fight in the magazine , Just be glad you did not pick 22 caliber
The only pellet that fits good in the 22 is the GTO pellets ,,
Mike
The only pellet that fits good in the 22 is the GTO pellets ,,
Mike
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I heave the 2024 V3 .25 it loves JSB 25.39 & JSB 33.95. just have to experiment with the power adjuster.
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Anything that has a standard round nose will fit. The "common" weights and popular name brands all shoot well in the magazines. Both JSB and FX pellets in 34 grain with a medium power tune is good for one magazine of shots per fill, and the respective lighter 25 grain pellets can be tuned for two magazine's per fill (with pretty flat extreme spreads for accuracy).
Experimenting with the pointed pellets is asking for trouble, as they tend to jam.
Experimenting with the pointed pellets is asking for trouble, as they tend to jam.
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I have written in other threads about this subject. On my .25 GK1s, I have both a Gen 1 and a Gen 3, both have a magazine bore of exactly .250" measured with precision pins. The pellet retention mechanism is a light chamfer at the mouth of each mag bore. This chamfer is designed to hold the oversize pellet skirt, which is .010" larger than the pellet head at .260". This prevents the pellet from shifting forward in the magazine causing jams. All the JSB pellets work flawlessly in this manor. I recently shot two tins of H&N pellets and the skirt diameter was small and allowed the pellets to shift forward and jam. So beware. always check your chosen pellet's skirt size before buying too many. I have not tested other brands, so that is on you. I shoot the 25.4 gr pellets because they are very accurate and less expensive than the heavier 33.9 gr size.
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