JSB Jumbo Beast .22cal @ 33.956gr!

Wow! They look like the .25 Mk2 heavies. Think I will order some and a heavier hammer spring for my 1st gen Marauder. It has a Hill valve, .160" transfer port and gauge block along with Huma .25 cal regulator. I'm getting 39 fpe now with 21 gr Baracuda's at around 920 fps but the hammer spring is maxed out. I wonder how fast I could push these? Only one way to find out. Thanks for posting this Z.

Ok just ordered 2 tins from Airgun Depot. Checked PA but they don't have them yet. Now just need a heavy hammer spring. This should be fun! Is it possible that my .22 Mrod could put out as much power as my .25 RAW HM1000x? Its shootin the 34 gr. Mk2 heavies at 866 fps for 56 fpe. Humm? Wouldn't get nearly as many shots that's for sure. But maybe with an SSG? Humm? Please let these be accurate pellets!

And yes I do have and use regularly a single shot tray. I'm betting at my current tune it will push them to around 800 fps. I'm very excited to play with these! Anyway here is a link to Airgun Depot's mini review: http://www.airgundepot.com/review-new-jsb-hunting-pellets-article.html

I ordered some for my Sumatra. I'm sure they will fit the magazines.

I ordered a tin and a few tins of other heavy's also,

Being these are new, but has anyone found the BC of these ? ...also does anyone know the BC of their 25 gr 22 cal pellet ?

Thank you.

wll

WTF!!!!!
59 ft/lbs if you can get these to 880 ft/sec.

Looks like I need another rifle.

Wow, that's a heavy pellet for a .22! It's as heavy as the .25 heavies!! How did they do that? .30 cal a and blackdiesel, please post your results. Not sure if my regulated rifle (JSB 15.89 around 885 fps) would shoot them fast enough to be accurate. 

chasdicapua they made them really long. To long for most mags. I'm sure blackdiesel's Sumatra will be a hammer with these. Probably up there with the Condor. Sounds like these are to heavy for your gun but there's only one way to find out. My Mrod shoots the 15.89 gr at around 1000 fps and the 18 gr at 960 so I'm thinking it should push these around 800 ish. My order shipped so I should find out this week. I will let you know.

That's huge. I wonder why they went so big/heavy? Even something around 25 - 27 gr would have been a big leap. One would need to have a gun that's pretty darn powerful to shoot that thing at a speed that would make it accurate, no?

Got to try the 34 gr. and 25.4 ultra shocks today. Both seem to be spot on, was really surprised at the accuracy out of my Bobcat MKII. The 25.4 gr was shooting 730 fps the 34's were shooting at 605 fps. It shoots the 18 gr JSB at 885 fps

WOW! I thought it was odd that the photo JSB had looked like the .25 heavies. Yes that will take some power. Think what the BC of these must be.

Whoa!
Need to get me some of them!
My take: The .22 cal air rifle is more common than the .25. They figure make a pellet that heavy for a larger market vs going for the smaller .25 cal market. 
Well, I own a .22 in PCP and break Barrel and one of the reason why I went with .22 vs .25 is I can find .22 at 2 local sporting goods stores. Sure, Crosman, Gamo, and even Stoger, but at least they have them. Never seen .25 in the wild other than the interwebs. 
Just my ought2 cents.

Well count my FX Wildcat out. Best that I can determine Beasts are 10.12 mm long and my WC mag is only 9.8mm.
Just found on the Yellow the Beast is 10.7 mm long. Once someone receives their shipment please post the length.

So I finally got to try the beast's out in my Marauder today. I was surprised at how slow they shot. The gun shoots JSB 18 at 925 fps and only pushed the 34's at an av. of 660. But I guess it stands to reason as they are almost twice the weight as the 18's. I got my new hammer springs yesterday a 10 lb and a 12 lb so I will play with those soon and see how fast I can get these to move. This gun has a Jim Gaska/TJ choked barrel so maybe the the choke is slowing these down more than the 18's? But on the up side the accuracy seems promising. I only shot about 20 rounds and ten were over the Chrony. I'm more concerned with getting the speed up and then will check accuracy.
They fit fine in the single shot tray b.t.w. and I had no trouble loading them.

Someone needs to run them thru an impact.

If you just have to shoot these things I would be willing to bet a bbl. with a faster twist would be needed. Still the velocity loss is too much for me.

Man, those things are HUGE! Even at only 660 FPS, I would venture to gain they would hit like a sledge hammer.

I got to agree, Got to be for some souped up 22 , To bring any long range with these big ones...
The drop would be like a rock,
Mike