There’s a new Heavyweight Champion on the airgun scene, and this one is the King of the .25 pellets!
Heavyweight Kings in .25 caliber!
JSB is very keen to the demands of the World, and it feels as though they are especially in-tune with the US market specifically. The Czech Republic company has been manufacturing pellets for many years, and they began specifically with the 10-Meter match gun market. Over the course of business, they have added and included so many types of sporting pellets, hunting pellets, and more. Many years of hard work and dedication to detail have earned JSB a reputation for building quite possibly the best pellets around! When they jumped into the Quarter-bore market with the JSB King .25, they were met with huge success. As the market continued to grow in the .25 caliber, the power levels began to rise as well. So what have we come to expect from JSB? They respond with yet another great pellet…the King Heavy .25 at a dense 33.95 grains!
The JSB King Heavy .25 pellets are all around good looking pellets! They have a long, thick waist, with very little taper. At a glance, they resemble a cylindrical pellet like the old Sheridan .20’s. The skirts are good and solid, which will help the soft lead composition hold up with moderate use. The head is a shallow round nose, and is likely the best design possible, knowing the extent of testing JSB would have performed prior to committing to this profile! We have the King Heavy pellets in the larger 300 count tins, and they come safely packaged with foam liners on top and bottom of each tin for added security and support.
King Heavy (left) vs standard King (right)
In testing, accuracy is what accuracy always will be…hit or miss! No pellet will ever be the best in all barrels, and no pellet will shoot with accuracy guarantee. As with most JSB’s, we find they are more consistently the best pellet tested out of many airguns. The same held true with the King Heavy .25’s. Heavy hitters like the FX Royale 500 or the Daystate Air Wolf Extreme did surprisingly well with these new pellets. Velocity (of course) decreases, but overall power increases and BC gets better with these King Heavies! We tested the FX Wildcat .25 for fun and got these results:
King 25.39gr = 910 fps Average = 46.7 ft/lbs
King Heavy 33.95gr = 805 fps Average = 48.9 ft/lbs
As you can see, the power level of the rifle increased by over 2 ft/lbs, and the added weight retains the energy better down range. Also, due to the lower velocity, the pellet had a noticeably quieter report when exiting the rifle! All these features add up to great things for hunters!
Best of all, we waited to post this announcement until after we received our first large shipment. Let’s face it, reading a review and getting excited about a new product is very upsetting when you then learn that the product is not available yet! So, if you have a .25 caliber precharged airgun that is shooting hot, and you want to see if the new JSB King Heavy .25 pellets bring out more potential from your rifle, get a tin on order and give them a try!
Until next time,
Get out and shoot!
I recently purchased a Daystate Air Ranger from AoA in .25 caliber.I have been using JSB’s 25.39 pellets with great success for pest control on rabbits. Great accuracy and smacks them hard, a real hammer compared to my .22 caliber I’ve been using. Though I’m not impressed with heart/lung kills. I’m anxious to try out the new “heavy’s” that I just ordered.
Got the pellets today, sorted them by weight, established zero at 40 yards( they strike 1-1/4″lower than the 25.39. I have 3 magazines I use for my Air Ranger and everyone of them struggle to fit the majority of these pellets. The skirts are hanging up as the magazine is being turned to load each pellet, resulting in damaged skirts, a shearing effect, not good. They are accurate for the 30 shots I made in a strong breeze.We shall see how they do on rabbits tomorrow morning. For a pellet that is suppose to weigh 33.95 grains, the lightest was at 33.43 and the heaviest at 34.76.
My Mrod Gen 2 loves them, under 1″ groups at 52 yds
1 mil dot hold over accurate as the Kings. My Will P tuned long gun and carbine Sumatra love thes!!! Haven’t shot them over the chrony yet but, accuracy is deadly. On carbine full power shooting 6 shots at 52yds you can cover with a quarter, same with the long gun. Except on two clicks off of hi power. Great heavy hard hitter.
There is a considerable difference in killing efficiency when hit in the heart/lung shoulder with these heavier pellets. Many simply tipped over, DRT. I shot over 100 rounds and every magazine loading was a chore. You need clean dry fingers to spin the mag while loading it because It is difficult to rotate the magazine while loading it with these pellets. The skirts seem to sit a little higher in their ports. Working the bolt to run a pellet from the mag into the chamber takes a lot of effort too. This can’t be good. At a 100 yards, the 25.39 shot tighter groups. I’m sticking with
the 25.39 for now. So much more user friendly. Results may vary, again this was in my new Daystate Air Ranger .25 cal.
Today I used a “single shot follower” instead of the magazine. Much better groups, smaller/tighter at 100 yards. The magazine is where the problem lies with these pellets.
They fit too tight in the mag and have to be forced through it when working the bolt. Evidently it’s alternating the pellet in someway.
Gary what brand is your rifle???
Rigoberto, it is Daystate Air Ranger.
Side note. 31 grain Baracuda’s function fine in the magazine.