NEW .22cal 34gr. JSB Jumbo BEASTS just came in! Initial review...

Tominco · Jun 21, 2017

WOW!
These things are LONG! Are they even going to fit into a magazine?
Since I had my pellet sorting stuff out anyway, I decided to put them through some measuring. I grabbed 7 off the top and kept the same 7 through all these tests.
These are the smaller 150pc tins.

Next to an 18g JSB Diabolo

18gr = 7.7mm 34gr = 10.84mm

FX .22 magazine. Uh... NO! They're too tall to allow the magazine to cycle.

Visual skirt inspection. They look a little beat up.

I would have used my Speedy Pellet Inspector but....

What the heck head size are these??
Let's find out...

WOW! I'm beginning to worry about my breech O-ring.

Weight testing results...
1 each at...
33.40
33.52
33.70
33.96 - Correct weight, per the front of the tin.
34.32
34.36
34.42
I expect some variation in weight but, it's usually in the hundredths of a grain, not in the tenths. Not to mention being .5 +/- off in either direction. That's a full grain difference from lightest to heaviest.

I dropped one off the coffee table by mistake. It fell about 2'. These are made from some very soft lead! Head damage, as expected. Skirt damage goes about 1/3 of the way up the skirt.

It's hard to show the heads in a picture due to their shape. But, I see more flats, nicks, and smileys than I expected.
(Lost in photobucket)

It's Summer Solstice so, there's daylight out still! Hooray!
I'm not expecting great results at long ranges. But, I hope to be proven wrong. I'll try to post up some pics later on tonight or maybe tomorrow.

Initial thoughts....
Jeez JSB, what happened to quality control? These are all over the place.
Happy Shooting!
Tom

Dirte · Jun 21, 2017

Wow! Those are beasts. It would be nice if they fit in the Crown's magazine, with all the future barrel options.

Tominco · Jun 21, 2017

Wind = calm.
50 yards
(Lost in photobucket) 1-1/4" group

Wind = calm. If it did blow it was 1-4mph right to left (Yes... Right to left!)
100 yards
(Lost in photobucket) 5-3/8" group

50 yards (During Chrony testing) Wind = Didn't pay attention. Nothing notable, guessing 1-4mph.
(Lost in Photobucket) 1-1/2" group

Chrony numbers...
609
608
604
621
614
599
617
611
627
623
For comparison purposes...
The same gun on the same setting shoots the 18's at 890av.
All things the same this rifle shoots the 18's in 1/2" groups at 50 in it's sleep. I'd guess... 1" to 1-1/2" at 100 yards.

I had high hopes for these. I thought they might bridge the gap between the wind bucking weight of the .25 heavies and the accuracy of the 18gr. .22's. I'm not sold on them. Tomorrow I'll try running them through my AA S-510. Maybe traditional rifling will like them better?
Tom

@Dirte - The pics of the Crown show it with Impact magazines, which (IIRC) are the same thickness as the Royale's. Unless they have an indent on the inside to let the head clear, I don't think it's going to work. But, I shot these through my Royale using a single shot loader. So, they can be loaded into a Royale size mag opening. Want a tin of these? PM me your addy.

Maineiac · Jun 21, 2017

"Tominco"Wind = calm.
50 yards

Wind = calm. If it did blow it was 1-4mph right to left (Yes... Right to left!)
100 yards

50 yards (During Chrony testing) Wind = Didn't pay attention. Nothing notable, guessing 1-4mph.

Chrony numbers...
609
608
604
621
614
599
617
611
627
623
For comparison purposes...
The same gun on the same setting shoots the 18's at 890av.
All things the same this rifle shoots the 18's in 1/2" groups at 50 in it's sleep. I'd guess... 1" to 1-1/2" at 100 yards.

I had high hopes for these. I thought they might bridge the gap between the wind bucking weight of the .25 heavies and the accuracy of the 18gr. .22's. I'm not sold on them. Tomorrow I'll try running them through my AA S-510. Maybe traditional rifling will like them better?
Tom

@Dirte - The pics of the Crown show it with Impact magazines, which (IIRC) are the same thickness as the Royale's. Unless they have an indent on the inside to let the head clear, I don't think it's going to work. But, I shot these through my Royale using a single shot loader. So, they can be loaded into a Royale size mag opening. Want a tin of these? PM me your addy.

Would the 25.39g .25's give you the wind bucking accuracy?

RusBear · Jun 22, 2017

I've tested those pellets with 16 - 17,7 - 20" twist rate barrels at the speed of 260 - 320 meters per second. 50 meters grouping is excellent, but at 70 meters the grouping is with the size of my fist and on 100 meters they sometimes just goes 90 degrees from the fire line... Don't know how to struggle with that.

Dirte · Jun 22, 2017

"Tominco"I had high hopes for these. I thought they might bridge the gap between the wind bucking weight of the .25 heavies and the accuracy of the 18gr. .22's. I'm not sold on them. Tomorrow I'll try running them through my AA S-510. Maybe traditional rifling will like them better?
Tom

@Dirte - The pics of the Crown show it with Impact magazines, which (IIRC) are the same thickness as the Royale's. Unless they have an indent on the inside to let the head clear, I don't think it's going to work. But, I shot these through my Royale using a single shot loader. So, they can be loaded into a Royale size mag opening. Want a tin of these? PM me your addy.

Hey...... I appreciate the offer but it looks like they a bit of a struggle to group. The good thing is your doing the leg work on a lot of testing and gunsmith type projects for me. I've got some good ideas from you. You need more youtube stuff. I like the tech stuff better than the hunting videos. That is unless your shooting those poor peeps.

Tominco · Jun 22, 2017

I'm really glad to hear that my vids are helping some people out. It's a lot of work and it's good to know it's appreciated.

Tom

Rey · Jun 25, 2017

Great work tominco!!!
The next question is what gun can push these pellets at 900 fps? These pellets are gonna be the same questions everyone has for the .25 king heavy and for the .30. Find a gun that can push these 900 and be as accurate. We will all be getting another gun at that point. Damn lead heads!!! Lol. It's a fun time to be an airgunner.

mmahoney · Jun 25, 2017

Thank you, Tominco. I really appreciate the information. I was hoping the quality would be better. It is hard to imagine tight groups at distance with such damage and variation.

Percula · Jul 17, 2017

Any chance of getting the pictures rehosted someplace that they will show up here?

Goodtogo · Jul 17, 2017

You can take pics off of your desktop now on AGN since they changed that a few months ago? (or out of your picture folder)

Tominco · Jul 17, 2017

"Percula"Any chance of getting the pictures rehosted someplace that they will show up here?

Yeah, I'll work on it when I can. This photo bucket thing sucks. I've got so many pictures posted it's like... "Where do I start?"
Tom

Edit: Uploaded the pics that I could still get to for you.

Mrv · Jul 20, 2017

my setup for heavy beast pellets. Leshiy 600mm barrel 270m/s=886fps.

Monkyshine · Jul 21, 2017

Just got some of the JSB 25gr redesigned pellets from Preditor International. Will put some through my buds kalibr carbine.

AirSupply · Jul 23, 2017

Monkyshine thanks for update. Look forward to your results. Have you got a smooth twist barrel to try them with?
Michael

Monkyshine · Jul 23, 2017

I shoot only .25 cal FX guns presently, so our testing will be the CZ barrel. It should not be to long before we report numbers if you want them. PM me to jog my memory if I don't get it posted. Lot of nitesite work here with coons and rats. Testing and setting up puerto Rico's new.25 wildcat for 9 days hunting out my way. He Flys up soon and I'm trying to get the new rig perfect. Don't forget the new .22 cal monster 25 gr pellet has redesigned stamped on lid.

Monkyshine · Jul 23, 2017

Sorry Tominco. Thought I responded on another string for the 25gr testing.

AirSupply · Jul 23, 2017

Thank you. I'm keen to try these pellets to and hope to see them for sale soon. I still haven't seen them anywhere except for Matts trials with them. Good luck with your hunting trip. 9 days!
Michael

Monkyshine · Jul 23, 2017

Ask for Dick at Preditor International and he will direct sale some tins to you. A pallet came in last weak. Distribution starts now.

Tominco · Jul 23, 2017

"AirSupply"Thank you. I'm keen to try these pellets to and hope to see them for sale soon. I still haven't seen them anywhere except for Matts trials with them. Good luck with your hunting trip. 9 days!
Michael

PM me your address and I'll send you a tin. (as long as your "conus")

NEW .22cal 34gr. JSB Jumbo BEASTS just came in! Initial review...

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