Huben GK1 .177

[denovich]

How do you got about coating them? I imagine you'd be able to seat the HP on a toothpick and then bake them

I put powder in a container with slugs and gently shook them around. Individually mounting each slug on a toothpick is way more work than I'm willing to do.

 

[miksatx]

Installed a Huma Reg set at140b shooting the rws 9.3 supermag 640/630. Filling to 300b.

 

[airgunmike56]

Is that your 177 thats sick, I got a LDC kinda like that I cant find where I bought it from? I have to bore the exist hole a little to keep the 25 from clipping ,
If my 22 comes back and loads as good as my 25 I may have to try a 177 caliber, Who made that LDC for you , You can PM me if you have to, I bet you dont have any pest birds in your backyard,,
You got to take a picture with all three of them together
Mike

 

[airgunmike56]

Not as pretty as yours , But works great,

 

[airgunmike56]

I will call that a double chamber moderator , The smaller one you sent me works just as good as this big one , I did have to open the exeat , end a little
Works great.

 

[JaceSpace1369]

Have any of you tried the JSB 16.2gr pellets? Or the 13.43gr RDM? I had an experimental Huben K1 in .177 and the 16.2gr Beasts did the best in it. Might be worth a try.

If you still have the Gk1 .177 try some NSA 12.5gr slugs I've read a few reviews stating that they are actually .181 size rather than .178

 

[miksatx]

I'm still shooting rws supermag 9.3 wadcutters sighted in at 16 yds 825fps. Killing sparrows and fox squirrels out to 25yds.

 

[JaceSpace1369]

How many shots per fill?

 

[miksatx]

How many shots per fill?

I haven't counted. I shoot from 350 down to 200 and refill from there. I'll check. 50shots, with a high of 870 down to 791.

 

[JaceSpace1369]

I haven't counted. I shoot from 350 down to 200 and refill from there. I'll check. 50shots, with a high of 870 down to 791.

Damn, that's steep

 

[miksatx]

Damn, that's steep

Guess I'll give my reg setup a try. Never had it shooting 825 on the reg before. Only lower fps 600+ .

 

[Airgun-hobbyist]

Curious to see how that turns out. My concern long term would be any type of "shimming" rubbing off with each round through it.

I will say I am blown away with the easy power of the GK1. Still messing about a learning the pistol. I'm about 1 1/2 turns out from where the pistol came tuned and pushing the JSB Redesign @ 930 fps for ~26fpe. 26 fpe in .177 is beyond the ability of many rifles and this tiny pistol has much more in the tank. (once I refilled to 300 bar I put in some 16.2gr and they chrono'd at a ridiculous 980 fps for 35 fpe!!! WUT!!?!!)

I'm hoping for some ~15-17gr slugs that fit well. Someone's gotta be able to do it.

What kind of shot string are you getting with these heavy pellets shooting that fast? How many magazines per fill? ...etc?