How to switch calibre for Snowpeak M60B

[Max115]

I recently got a .25 calibre conversion kit from Wes of Air Gun Archery Fun and I was able to do the switch quite easily once I figured it how. I couldn't find any Youtube videos out there on how to do this so I decided to a video so it might be helpful for those who might want to change their calibre.

Simple procedure to swap out the barrel and fill probe.

Enjoy.

 

[xsarfc9x]

Nice video, you should post it on the Zelos FB page as well.

How you liking it in .25?

 

[Max115]

@xsarfc9x Thanks for watching. I am not using FB. I haven't shot it yet. Just got the kit two days ago and it is raining this weekend.

 

[Perle]

What size bottle is that ??

 

[Perle]

You were one of the first to make a video and post here on the then new M60B …

It’s come a long way.



I have 2 Zeli myself. Zeli ? Zeloses ?

 

[Max115]

@Perle. Thanks for watching. I was able to go out this morning to the farm to try out my new .25 cal M60B. I shot the NSA 26.8gr slug using the factory setting of 130 Bar and HS preset from factory. I setup a target box 28 yards away and took my first shot. It landed at 5 o'clock on the bullseye. Wow, I got lucky with the turret setting that was on my Helix scope when it was on the FX Impact MK2. I didn't have to chase and find the POI.

I continued to put another 4 shots at the bullseye. They grouped together probably 3/4 - 1". I was excited with the result from my first .25cal gun. I repeated another 5 shots on the second bullseye. Similar result. I was happy because these slugs were getting along with this .25 barrel. What a way to start my tuning. The average speed was 835 fps. A bit slow for my liking as I wanted to have at least 50-60 ft.lb of energy with the 26.8gr slugs.

I adjusted the HS going clockwise and the speed didn't increase but rather decreased a bit to 821 fps. So I decided to go the opposite direction, counter clock wise, turning 1/4 turn at a time. I kept turning to the left and the speed began to increase to 850 fps. I kept on going till I hit a dead end with not more movement with the HS. My final speed was 863 fps with the REG still at 130 Bar. The 5-shots group were ok, nothing to brag about.

I then attempted to make adjustment to the REG to 140 BAR, but I didn't know how to turn the protective sleeve and access the REG nob. Plus, I didn't have the right screw to make the adjustment. I couldn't do any adjustment at all.

So I placed the target box out to 50 yards and began to record some scope cam footages on accuracy based on 865 fps. Again, the groups were not too excited, but it showed potential. It was windy as usual at this location by noon. I did the best I could and just shot a few 5-shoots groups.

The wind would pushed the slugs off course but I was quite happy with the results anyway. I will need to figure out how to make adjustment to the REG and continue to harmonic tune this .25 Cal M60B.

Stay tune...