Date: 25/5/2020 0:33
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JSB Redesigned Monster Pellets .177 400 ct.

4.017 reviews
JSB Redesigned Monster

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  • WARNING This product
    WARNING This product can expose you to chemicals including lead, which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to

JSB Redesigned Monster Pellets .177

  • .177 caliber
  • 13.43 grains
  • 400 pellets

These 13.43 grain pellets are ideal for small game hunting and target practice.  Easily dispatch prey whether paper or pest.

In stock

Item Code: JSB-546275-400 [PY-P-1421]

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Caliber.177" (4.5mm)
Ammo TypePellets
Suggested forSmall game hunting/target practice
Ammo Shape

other products by JSB

Average Customer Review

4.0 (17 reviews)

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5.0 5.0

By Thomas from USA on 2020-04-15
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Things I liked: I have now passed through the 2500-shot mark....with these Redesigned .177's in a AirArms S-500. Accuracy is (linearly) degraded with these specific pellets....when S-500 power is dropped (incrementally) below the highest power setting. I achieve 930FPS on highest power setting. It appears 910FPS (or below)..produces inaccurate results. I ascertain a 1.63" (10-shot groups...multiple times...consistently) at 100-Yds with a good heavy bench (yet; not a gun vise). I speculate a vise would generate approx. MOA (or very slightly below MOA) resultant. Remember; this planform does NOT follow diabolo (steep wasp-waist) velocity/speed incarcerations; hence, higher velocities are required. Aerodynamically, it is almost a 'slug'. The transonic 'window' on this substantially smaller; hence, authorization of (unsuspectingly) higher velocities are required (and encouraged). Down-range energy retention (measured in FPE) is superior for a (barely) diabolo design. I surmise BC = .039

Things I would have changed: Why must there be only ONE redesign pellet on the market....and as a extra-heavy entrant into this airgun World (with subsequent) --very limited-- restricted (niche) application. It is my strongest (geophysics) recommendation that a 10.34g (and 8.44g) redesign achieve invention/ the BULK of the airgun World can employ-and-enjoy this tremendous euphoric planform attribute(s). (Beating a dead-horse): THREAD the lid. (Still: No bent skirts 2500 rounds).

What others should know: It is my strongest recommendation these specific pellets should ONLY be utilized in PCP's.....AND.....that can generate ABOVE 910FPS. If not; you will not like this platform. (This is a VERY common --unsuspecting-- easy to make: error with this pellet; hence, sometimes the 'bad ratings'). Because I have a launch platform that can generate (just barely) above 910FPS....I (now) have ZERO other pellet platforms in my inventory. ONLY the redesigns. I am DONE with steep wasp-waist "air-brakes" pellets forever more. RID the diabolo wasp-waist's!


4.0 4.0

4.0 4.0

5.0 5.0

By John from USA on 2019-11-02
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4.01 rating

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Things I liked: Very, very accurate. Great fast shipping from PA.

Things I would have changed: Need screw on tin. A bit expensive. Provide head sizes ( I prefer this for all higher quality pellets, every tin should list them )

What others should know: These shot amazingly well out of my HM1000, tested at 50 yards they would group near or below MOA at about 820 fps. I'm guessing they'd shoot fine at faster speeds as well.


5.0 5.0

5.0 5.0

5.0 5.0

By Billy from USA on 2019-10-15
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Things I liked: Pest pellet for my .177 hatsan flashpup.

Things I would have changed: N/a

What others should know: Be careful


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  • Terry from USA asked:

    What's the length? I'd like to know if they will fit in a Marauder magazine?

    • Mark from USA:

      They will fit in the marauder magazine.

  • Joseph from USA asked:

    What is the purpose of the redesign?

    • Fred from USA asked:

      Any idea what the ballistic coefficient is on these?

      See all discussions

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