Huben .25 Slugs for GK1?

NSA .254 slugs, which actually measure .255, are by far the best slugs for the gk1.

33.6gr slugs are great if you're looking to optimize the cylinder capacity for a full magazine.

Here is a 17 shot mag dump at 15 yards using a bag rest @ ~1 shot/sec using primary arms slx 3x prism.

View attachment 472048
Any chance you could upload this in something other than .HEIC file? Like a simple Jpeg version? I can never get these to open, etc.
 
Any chance you could upload this in something other than .HEIC file? Like a simple Jpeg version? I can never get these to open, etc.
Avs is a better choice the lead composition is softer so they are easier to stuff into the magazine. The nsa have antimony in them which makes the lead harder and the avs are pure lead so they are a little softer. This info was procured from Kelly @ Krazykool who has helped me through the ins and outs of both my k1 and gk1. I’ve used both and he is correct. The 253 fit better but the 254 shot better. Also the zan are pretty good. A little silicone lube also goes a long way.
 
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Why slugs in the GK1?
I’m genuinely curious.
Pellets are super accurate and never cause jams.
I’ve only shot pellets in my GK1 once and they were not as accurate as slugs. My slugs shoot MOA groups out to 110 yards and are sized at .253 diameter which fit the GK1 perfectly. For $50 I can send you a sample pack via priority mail of my slugs: 100 count each in 33gr, 36gr and 40gr for you to see for yourself. Send me an email at [email protected] for more information.
 
New observation. I’ve been shooting aea 34 grain pellets in my gk1 and found that either they are slightly smaller dia. Or skirts thinner but when you seat them they travel too far into the mag and are causing jams and air dumps. I was hoping to standardize my pellets and move over to all Aea but alas I guess that’s not going to happen. Upshot is that I learned how to disassemble and reassemble my gk1. Not something I like to do unless it’s necessary but found it to be easy. Word of caution is make sure the gun is completely degassed or removal of the air tank will turn into a large projectile (air cylinder) will go sailing across your workspace and definitely startle you.
 
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