Page 10 - JSB Diabolo Exact, .177 Reviews

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I've been looking for a good pellet for my .177 Benjamin Marauder and man did this meet my expectations. This pellet glides perfectly. I was able to put 10 rds on my targets bullseye at 50 yards !! To bad I can't upload the picture to prove it. Best pellet in my opinion.

Pellets visually appear to be very consistent. My first groups fired at 35 yds were easily within 3/4 of an inch fired from a Gamo Rocket with Gamo 4X scope

Haven't had enough experience with these pellets yet

After firing 4, 3shot groups I attempted to adjust my windage and elevation to move group to bulls eye when my groups fell apart. I believe this is due to the quality of the scope and not the pellets. I have ordered a higher quality scope and if the results don't change, I will update this review.

These pellets breathed new life into a cheap Beeman RS2 dual-caliber rifle that had been sitting in the closet for 6 months. The rifle is stock except for truing up and polishing the crown of the .177 barrel. With the JSB 10.3gr pellets, it is giving me 0.5" 5-shot groups at 25 yards consistently and an occasional freak group of 0.2" to 0.3". Groups at 42 yards are .6" to 0.75". They fit the breech loosely and I've come to expect poor accuracy when that is the case but not so this time. Measuring the heads of 20 samples from a tin purchased June 2013 produced: 0.1750" typ 0.1750" min 0.1760" max 0.1753" avg 0.0004" std dev I don't have super-precise measurement capabilities but checking with precision gauge pins gives me confidence to interpolate to one-half thousandth (0.0005").

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Pellets of this weight may shorten the spring life for many springers. Generally speaking, I would consider these suitable for a MSP or PCP rifles only. If you have access to a chronograph, check that energy (fpe) isn't falling off compared to typical 7 or 8gr pellets. If you get less with a heavier pellet, it is a sign the powerplant (spring) is not working optimally and may shorten its life somewhat.

In the case of my Beeman RS2, Crosman Premier Ultra Magnums of a similar weight (10.5gr) produce less power than 7-8gr pellets. But the 10.3gr JSBs produce more. The CPUMs fit very tightly to the barrel versus loosely for the JSBs so I suspect friction is playing a big role.

I've tried a lot of other pellets and different weights, but this JSB proves to be the best in my .177 air rifles. It's weight and shape are very consistent. Around 900 to 925 fps, I get a ragged 1 hole group at 40 yds. It works for me.

Please don't change anything.

In .177 cal., shot placement is the key for a one shot kill. Center of mass works very well for me. I'm 71 years old, so I don't try head shots. (any more)

Most accurate pellet in several of my guns. Good quality control (very few bent skirts). Good fit in chamber -- tight but not too tight!

Nothing with quality or design. A bit pricy...but I buy 3 and get the fourth tin free so that helps!

Pyramyd Air provides fast shipping. Their packaging of pellet tins in tight fitting Styrofoam circles is second to none.

accuracy, no dinged or dented pellets

the tin sucks. the lid falls right off, don't store them in a range bag or box unless you want to pick them out of the bottom.

These shoot great in my marauder, they are heavy enough to resist some wind drift at longer distances.

Excellent accuracy

Make them free (for me only)!

Great for tameing down fps and gaining stability in higher power springers.

it works fineothing else

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They are the best shooting pellet I've found for my AA S510

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These pellets shot consistently accurate through my .177 PCP Benjamin Marauder. 10 shots at 10 meters look like one pellet hole. Can't wait until good weather gets here to test accuracy at longer distances.

screw on covers.

These are terrific. Super accurate in my Hatsan 125 nitro, and subsonic (quieter for the backyard).

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I should have ordered more tins.

I thought I had found my magic pellet when I shot the Beeman Kodiaks out of my Talon SS. Didn't think anything would out do them. I decided to try the JSB Diabolo Exact Heavy and I am very glad I did. They absolutely the most accurate pellet I have tried. Once I am done shooting my Kodiaks and CP Ultra Magnums, these will be the only pellets I will ever buy. Shot 10 rounds from a table in my backyard at about 20 yards and the results put a huge smile on my face. 10 shots, 1 hole about half the size of a dime. I'm still in awe.

Screw-on lid would make this the absolute dream package.

I'm convinced this is the very best pellet for my Talon SS .177. I cannot see why it would not perform the same way in any other .177 caliber airgun.

Unbelievable Consistency And Accuracy!!!

A screw on lid would be a big plus

I use these pellets exclusively in an RWS 34 with a leapers 4x32 scope purchased as a package from Pyramyd Air in 2010. The combo this pellet and the .177 RWS 34 is amazing. At 90 yards, I can hit a 1/2 inch bulls eye - in fact, I can group 5 rounds in the same 1/2" bulls eye at that distance! Really!!! I never believed an airgun could maintain that degree of accuracy. I've tried other pellets over the years and the accuracy just wasn't there. They say certain rifles prefer certain pellets. That may or may not be true. All I know is that this pellet in Model 34 is deadly accurate.

So far the absolute most accurate .177 pellets for our Benjamin Marauder!! Getting 10 shot, 10 yard groups just 2 pellets wide!!! Very consistent from tin to tin.

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JSB has a sample tin with 7 different sizes and weights. Could not find them at PA.

Good weight, odd but effective design. Great, pellet here. I have shot almost a whole tin of these through my Talon SS and it loves them. I got a good tin of these with no damaged pellets. I shot them out to 105 yards today and got a 3" group. Not too bad. Fantastic pellet with wonderful knockdown power. Starlings at 60 yards don't stand a chance.

Price

Good pellet for more powerful airguns, or for someone who needs some good .177 knock down power.

Accuracy.

If these aren't working for you, change to a different type of pellet. Airguns can be sensitive to pellet diameter, shape, and weight. (Especially bores with high round counts.)

These shoot well in my benji disco pre-charged rifles.(3custom hybrids of 2250 lower, Discovery upper, with extra barrel bands. Built them myself:-) These are very soft with thin skirts. I still have a hundred rounds or so of them because they seem a little fragile for going afield, for my purposes. There are other pellet brands in the same weight that produce comparable accuracy but are more robust. If I were hunting from ambush these would be fine. From my canoe, not quite so.

Consistent, well-made.

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Second-best pellet I have found for my RWS 34P springer, which likes heavier pellets.

Pellets are very consistent. These are the most accurate of all that I have tried in my 3 air rifles. In my Benjamin Marauder, they are incredibly accurate!

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I had never heard of JSB before I found PyramydAir. I thought the only decent pellets were Beeman and RWS. Wow, so happy I tried the JSB's because none of the tried and true favorites in my FWB 124 worked good in my Marauder. Their weight, 10.34 gr gives them much longer range accuracy too.

These pellets are by far the best pellet i've used for .177, each pellet was uniform and there were none with damaged skirts. I used them in the gamo whisper deluxe i previously owned and i set up a table to shoot from and a pop can at 100yds and every time i hit it center mass. There's not much more i can say.

People say screw on lid but screw them the lid is fine.

Take advantage of the buy 3 get 1 free

Most accurate pellet in all my rifles.

We really need lot numbers/manufacture date

I had run into a couple very bad tins. PA replaced these and my replacement was back to the normal excellent JSB pellets that I expect.

Still wish JSB would go back to putting lot #s on the tins.