JSB KnockOut Slugs, Image 1
JSB KnockOut Slugs, Image 1
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JSB KnockOut Slugs .177 Cal, 13.43gr, Hollowpoint, 400ct

rating
5.09 reviews

$19.99

$0.050 / Rd

Model:MK I

MK I
MK III

Projectile Weight:13.43 grain

13.43 grain

Quantity:400 count

400 count

Quantity:

1
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Description

These new .177 KnockOut slugs feature a deep hollowpoint that offers excellent expansion, as well as a superior ballistic coefficient when compared to a standard pellet. Find out what you’ve been missing, and step into the ring with JSB KnockOut slugs!

JSB KnockOut Slugs .177 Cal, 13.43gr, Hollowpoint, 400ct

  • 13.43 grains
  • .177 caliber
  • 4.52 diameter
  • Hollowpoint
  • 400 count
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Specifications

Brand
JSB
Caliber
.177 (4.5mm)
Ammo Type
Slugs
Suggested for
Hunting
Projectile Weight
13.43gr
Ammo Shape
Ammo Diameter
.1776 (4.51mm)
Quantity
400
Price per Round
$0.050
Ballistic Coefficient
0.066

Overall Rating

rating
5.09

Ratings

5 star
9
4 star
0
3 star
0
2 star
0
1 star
0

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9 of 9 JSB KnockOut Slugs .177 Cal Reviews

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

I like the fact these are accurate in my Kral Puncher Knight. Turned my .177 into a viable pesting tool. First slugs I have ever tried in .177.

Nothing.

These go 860 fps out of my Ktal. Penetrate 3" in Clear Ballistics Gel at 12 yds. Expand to .25". I've shot Eurasian collared doves out over 100 yds with these little guys. The higher b.c. than pellets keeps them shooting flatter and further than pellets. Try them in your PCP and see how they do for you!

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Good shape, Good hollowpoint, Great Punch on impact, even with medium velocity (821 fps)

nothing

With pellets of the same weight and even heavier, would not do what these slugs do at 50, 60 and even 80 yards out of my Talon. If you should start with a single tin of these and test the different velocities for right tune for your rifle, see if the accuracy is acceptable for your needs, then by all means, get more and use them for what they are intended for.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

They look like a real bullet

Nothing really.

They are good for the price.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

These are the greatest thing to happen to .177's in a long time.

Put a screw on lid on the 13 gr.

They don't require a ton of power but they do like to go fast. I've had good luck shooting them at just about any speed above 900fps on up to about 990. Way more impact than a pellet in the 40-75 yard range and expand enough to not produce a pass through. Great for pesting.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Arrived well packed - zero damage to tins. Shooting these around 920 FPS from my DreamTac in .177. Very accurate little slug!

Sandy May 23, 2023

Brian check out Air Venturi Avenger. $349 and 60 day return period. I love mine and bought 2, one standard stock and one Bullpup. They have externally adjustable regulators, externally adjustable hammer spring, 2 stage adjustable triggers and shoot VERY tight groups.

BRIAN May 21, 2022

ill look up your Dream Tac,for personal knowledge lookin for a second air rifle i have a Ruger Blackhawk Elite in .177,it states 1200 fps with "Alloy Pellet" and a Velocity of "1000 fps" im just startin in "Air" i don't know Velocity but in your opinion would these cool slugs fire in this air rifle? im just gettin some opinions/ guidance if they are worth it,yeh this is a first for .177 a slug i think YEH ! ok end....is that better in language? P>A>

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Overall rating
rating
5
Value for money
rating
4
Size/Shape Distribution
rating
5

Accuracy

They are a little pricey

I havent shot these extensively because range trips in 20 degree weather are short. However, out of my 15 year old Falcon FN19 these are extremely accurate. Looking forward to letting the cavernous hollow points work their magic on Starlings and Squirrels when the weather co-operates. Absolutely no complaints regarding this transaction with Pyramid- Thanks!

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Overall rating
rating
5
Value for money
rating
3
Size/Shape Distribution
rating
5

Size and accuracy

Nothing

Worked very well in my gun better because of diameter than the 10 gr

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Jsb are one of the best pellet and slug manufacturers. Not much else I can say

Make a break barrel friendly version. Now that break barrels shoot >1000 ft per second, it would be great to have slugs that fit them. Target practice and small game hunting without needing air fill supply is just much simpler and more fun.

The 13 grains do not fit in all .177 rifles. I tried them in my Gamo swarm with no luck. They do work great in PCPs though.

ADOLFO Jan 16, 2022

Re: Things I would have changed: Make a break barrel friendly version. Now that break barrels shoot >1000 ft per second, it would be great to have slugs that fit them. Try H&N Rabbit Magnum Ii 15.74gr. Worked best for me. Re: What others should know: The 13 grains do not fit in all .177 rifles. I tried them in my Gamo swarm with no luck. I had the Same experience. The rear skirt is thin and the slug fits too tightly. Pushing (forcing) the slugs to close my breakbarrel Gamo, the skirt would crimp, and the deformed rear affects the accuracy and consistency of grouping.

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Overall rating
rating
5
Value for money
rating
5
Size/Shape Distribution
rating
5

Internal,external,and terminal proformance. Quality, and consistency is there, JSB speaks loudly and carries a big stick. As far as a 1:16 twist 18" Lothar Walter barrel in a HP Airforce talon the 13.43gr slug has good surface interaction, excellent groups at 35yrds,

Nothing

#1. Bearing surface is critical. If 13gr are too heavy the Bearing surface is better. The 10gr may be more in the grain size you like, the Bearing surface may be to short and not engage correctly. Do your test I was shocked how well the longer bearing surface did. #2 Airforce barrels have a slight jump to the rifling. You have to seat the slug or it could fall out. That's just the way slugs work, no skirt. Have not tested to 100yrds yet. I have not myself tried 10gr KO's. This info was from testing other .177 slug. So I went straight to 13gr KO's.

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