Page 3 - JSB Exact Monster, .177 Reviews

The jury is still out on these as both my .177's are HW 35's. I have to shoot them thru the Chrony to get an idea of the velocity. If I can get 700 fps+ out of them then they will be comparable to CCI CB Shorts or Longs which will make them great for pest control. From an R1 in .177 these would be serious long range pellets. My R1 is .22 Cal and The Monster Pellets weight twice as much and hit hard..

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You need a powerful airgun for these.

They are hard hitting and accurate and my gas piston Gamo loves them a lot. ..

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They're really close in weight and all chamber easily

Great .177 pellet! They are the best Pellet for my Swarm, groups are tight out to 25yds, pellet on pellet at closer ranges.

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Recommend at least trying these. Every barrel shoots differently. You might find a winner in these!

Great pellet!! I use in my TR-77, RWS 350 magnum compact, and my Benjamin titan.

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Obviously use in higher powered break barrels or PCP.

Every pellet was in perfect shape. Very accurate pellet for .177 cal guns!

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Highly recommend these!

Hand Weighed the entire container. Individual weights ranged from +/- 12.9 to +/- 13.95. Split the pellets into three groups. Test group averaged +/- 13.43 to within .05 grain. Lowest weight group averaged 13.28 with a maximum variance of +/- .3 grain. The heaviest group averaged +/- 13.60 and varied +/- .35 gr. Shot from my air arms S-510, the 10 shot test group averaged 879 fps 1' ft from the muzzle on my 18 yard indoor range, and 793' fps at 18 yards, providing muzzle energy of 23.06 and 18.76 ft lbs. respectively. The BC calculated out to be .0235. The 10 shot group measured 1/2" at the widest point, creating a very tight group.

I found these pellets to be very uniform, to feed from the magazine very well, and to hit with authority.

Even though these pellets are heavier, the JSB Exact Heavy pellets at 18.3 grain actually had a little higher energy level and shot even tighter. I am anxious to get some nice weather to move outside and try some 50 yard groups.

This is a correction from my previous review. I was on the wrong pellet before. These are very good the size is consistent, they fit well in the breech they shoot very good and they're fairly accurate. Weight and shape are good.

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I have a GAMO Magnum .177. These fit nicely into the breach. They work good for this gun.

Weight.

Make size consistent.

I have a Gamo Magnum.177 and so far only about one out of ten of these will barely fit into the breach. Most of them are too big to even get the head into the breach. They do not work good for this gun.

Great cylindrical pellet, good knockdown power for a .177

Would not change anything.

Hi impact Good weight

Would like to see a hollow point for hunting

Retains energy for that long distance shot.

Like the JSB sorted premium match boxed 8.44 & the 13.43 should also be sorted out because it shows very good potential.

Currently the JSB brand rules most of the airgun competition.

Shot from an Air Arms S500 Extra and an Daystate Huntsman. These are the most accurate pellet from both guns. From the S500, average of four, five shot groups was .209" CTC. From the Huntsman, (same shooting session) group average .228". Conditions: 30 yds, benchrest, 1-2 mph breeze, temp.65 F, 200 - 175 BAR gun pressure. This pellet is consistently the best grouping with the fewest flyers of all that I've shot.

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A steal at $12.99

Shot from an Air Arms S500 Extra and an Daystate Huntsman. Most accurate "heavy" pellet from both guns. From the S500, average of four, five shot groups was .332" CTC. From the Huntsman, (same shooting session) group average .316". Conditions: 30 yds, benchrest, 1-2 mph breeze, temp.65 F, 200 - 175 BAR gun pressure.

Screw on lid would be better.

These are the most accurate hunting pellet from both guns mentioned. They group in virtually the same point as the JSB Exsact Heavy and Air Arms Field Heavy pellet making an easy transition from target practice to hunting. Excellent for a .177 hunting choice.

This pellet is very accurate in my Marauder. In fact, it is the most consistently accurate pellet that I have tested in my Marauder. I have tested some RWS, H&N, and Beeman hollow points, JSB, Crosman, H&N, and Crosman domed pellets. My rifle likes to start at 2800 psi and shoots well down to about 1950 psi (42 shots). Pellets are pretty consistent for size. I measured 16 pellets from the tin and found the average head size to be 4.476mm with a standard deviation of 0.016mm. The skirts were an average of 4.621mm with a SD of 0.045mm. I have shot a couple of tins so far and all perform well. I think I have only had a couple of fliers so far. This will be the pellet I stick with for my Marauder.

Nothing really comes to mind - a good pellet.

We always want things to be less expensive but I think they are priced about right for what you get.

Quantity, consistency, cleanliness. Good energy at the muzzle, and good energy retention past twenty-five yards.

Not anything I can think of, other than, perhaps, the tin's top could be screw on.

These pellets are a fantastic combination with high powered break barrels, and do well at both closer and longer distances (past thirty yards). My Ruger Air Magnum is spitting these bad boys at a max. velocity of 894 fps, or just a few feet per second off of 24 fpe! At twenty yards, energy is still at 20 plus fpe! The pellet fits snug, but not too tight, and attenuates the violent recoil of the RAM powerplant. With these pellets, my .177 RAM is reaching, and surpassing, the energy delivered by my .22 cal Octane!

Easy loading in all guns tried. Remarkable energy retention at distance. Pellet consistency (finish, weight) and accuracy.

Can't imagine improving this accurate powerhouse.

Despite 13+g weight these shorties stabilize in typical .177" twist. So far the most accurate in new Benji NP2 and Gamo BC Bull Whisper, both within first 200rds OOB. We chrono'd at 15 and 30 yds and calculated NRG. >19 ft/lb retained at 30yd and 1" groups in either gun!! btw, extreme spreads and std deviations bely ability to group well. (Will test at greater distances in a future session) I have to re-order so we can test (& chrono) these in our now-shelved, humble Gamo Shadow 1000 springers. Expect to hand over a tin to anyone you encourage to try them and have to order more for yourself. (Next 'coon spotted had better wear a helmet. No doubt about potential penetration on such vermin.)

Shipped wrapped in foam and no dents in tins or pellets.Great for brake barrel guns.will slow down them high 1100 psi and higher rifles.

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If you gun likes these, they give your .177 the knock out power of a .22 cal. See comments below.

Nothing. Very accurate!

I have a Diana RWS 34 Meisterschutze Pro Compact, that didn't shoot well. I took the muzzle weight off and re-engineered it with an internal weight, and mounted it with o-rings instead of the rubber washer. Also put larger set screws in it and fitted them to the holes in the barrel with loc-tite so it will not come loose. The result was a very accurate gun. But still the gun didn't shoot as good as I wanted until I used the 13.43 gr. monster pellets. the extra weight on the barrel and these pellets make a great combo. This gun makes what looks like one ragged spot on my steel target at 32 yrds.

I like the tighter groups I'm getting with my RWS 350 Magnum and they seem to hit harder. I mostly shot HN,Beeman, or Crossman primers in 10.65 or the 10.34. I started shooting JBS 10.34 in my RWS 36 very accurate so with the power of my 350 magnum I thought let's try the JBS 13.4, I think I have found the best pellet for this gun. I shoot 25 yards right now and there dead on. Also getting rid of a lot nasty house sparrows.

Nothing just 500 in a can for the same price would be great.

I've found in shooting my spring piston guns that every gun is different and you have to just try different types of pellet and see what works, I'm finding that JBS makes a great pellet and there working great in my RWS. I would like to get a Pcp someday because I have 2 scuba tanks from past diving, so I'm already haft way there.

Just the way they shoot and hit hard, haven't shot past 25 yards yet but it's the best grouping of I've got out of my RWS 350 Magnum. I'm thinking I might have found the best pellet for this gun.

500 per can at same price would be great.

I've shot H N, Crossman primers, and Beeman but the JBS are shooting the best so far, not sure if it's the Xtra weight, or the shape, but as long as I can keep knocking out those pesky house sparrows I'm happy.