Jsb .177 knockouts in daystate

[tigerhunter]

You never know how slugs are going to preform in a LW barrel but in my old and amazing daystate mk4 the new knockouts are a little under a half inch at 42yds. Definitely minute of chipmunk. I haven't tried chronographing them yet but I'm guessing about 850

 

[Peashooter]

That scope & magazine.

 

[Centercut]

I shot the JSB KO 13.4 grain version at the AZ State FT Championships last weekend. They worked great at 790 FPS from my .177 Daystate Pulsar standard (17 inch LW barrel). Very accurate, but not quite as accurate as the Monster Redesigns (13.4 grain) at 815 FPS. Close enough that it doesn't make a difference (nickel compared to dime at 55 yards).

 

[tigerhunter]

This same gun shoots the nsa 12.5 pretty well too but at only 700fps. I'm hoping for better velocity with these knockouts. They are lighter and have a deep thin skirt. Hopefully that will make a better seal. I wish it had more power but I love that gun

 

[Motorhead]

If your MK4 has the DISPLAY ? .... Install a HELIBOARD and POWER it UP !!!

 

[tigerhunter]

Sorry I missed your post motorhead. I put a high power heliboard in my airwolf 25. It was the best thing I ever did for that gun. I only use the mk4 for timber tigers so it powerful enough. But I highly recommend them to people looking for more power and all the adjustability of the daystate tuner built into the gun and easier to use also.

 

[drumie]

My MK4 Panther was shooting the JSB great. But I wanted a little more speed from them. I got the heliboard for it and now it will sling the 10gr ones at 1050fps. I turned it down a little from that. But the KO slugs and the heliboard go great together.

 

[Ydunn.223]

The JSB 13.43 Knockouts shot very good from my Daystate Safari at 945 fps 

 

[sharroff]

I've got a Daystate Airwolf MCT with a Heliboard. Its favorite slugs are the NSA 20.2s in .216 diameter. I've tried 216, .2165, and .217 diameters as well as other slug manufactures. Larger diameter slugs just fit tighter and slow down more.

20.2 are 850fps

23.0 are 790

17.5 are 893 fps

23.0 and 17.5 shoot fine, but the 20.2s are one hole at 50 yards just like JSB 18.13 pellets.

My only negative on the NSA slugs is they don't expand at those speeds, but JSB 18s really don't either. I'll take the accuracy and bc though.

I've just begun testing slugs in my Impact MK3, so more on that later w/balistic gel testing. Maybe around 1050fps I'll see expansion with the NSAs I've got all the .22 NSA weights slugs, Javelins, FX slugs, JSB knockouts, and another manufacture I can't recall.

 

[OldSpook]

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timber tigers

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