💥.357 Sig Xtreme Defender💣 (2,200 FPS!?) VS 🧨.357 Magnum Xtreme Hunter👍🏻 (Defender) Ballistic Test 

I want to address something that has been bothering me lately, and that is the repeat comment in some form or another, about .357 Sig ammo price and availability. Paraphrasing 100 comments into one here - ".357 Sig is not available anywhere, and it's two to three times the cost of 9mm so it's useless". My question to these people is - what are you even talking about?! I know that a lot of physical stores do rack up the price because all they offer is generally Federal American Eagle .357 Sig, which is very pricey ammo. But to say that the cartridge is hard to find and to say it's like $60 a box in general, is very factually wrong. Going on ammoseek, there are 5+ pages of .357 Sig for purchase just like any other popular cartridge, and about a dozen of these retailers offer 50 round boxes of .357 Sig for $22 to $25. Also, defensive ammo is often about the same price if not less than 9mm+P defensive ammo. The fact is, .357 Sig is not all that hard to find and not all that expensive. It's not a lot different (at least online) than buying a 50 round box of .357 Magnum for cost and availability, but for whatever reason a lot of people are either seriously misinformed or have an agenda to make it seem as .357 Sig ammo is about as rare and expensive as .455 Webley (5 retailers online averaging about $65-$70).

357 sig! I wish more people would get into it so we could get the price down on FMJ's for practice! It's still one of those hidden gems that only few know the true power of! This load is what they were looking for when they wanted 357 sig to compete with magnum!

I chronoed the .357 sig defender against a 62 gr .556 from a 7.5 inch AR pistol and there was only about a 50-75 fps difference.

If anyone was curious, the felt recoil (for me) of the .357 Sig here was about the same as 9mm felt recoil. It's highly subjective, and take this coming from a person who thinks 9mm, .40 S&W and .45 ACP have the same felt recoil. When you shoot a lot of .357 Mag in snubs and .44 Mags in general, this tends to happen with your feel of recoil in auto pistols.

Please keep the 357 SIG content coming it's sold gold. It's makes me feel better about carrying it lol the price on the other hand does not lol 😂

The 357 Sig really impresses me. I have a conversion barrel for my 40 and a few rounds. Hard to argue with observable results.

357 sig is an outstanding cartridge, glad to see some renewed interest.

Because I have had a few people question the accuracy issue with this ammo, I am going to share a 75 yard steel shooting clip from an unreleased video with Hornady Handgun Hunter in 9mm and .357 Mag. Same revolver and the M&P 9 is exactly the same pistol as the .357 Sig, just a different barrel and magazine. In this clip you will see what I do on average. The Xtreme Defender ammo in .357 Sig was impacting about 4 feet low, as where in this video clip with traditional ammo, the elevation is right where I aimed. Hyper velocity ammo does this a lot. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-46NeB5eHUIo.html

Still think the Heavy 158 gr BBore 357 MAG was one of sickest rounds you’ve shot on here 1400+ fps out of 4” barrel That & .44 MonoMetal was a great episode too

This Video answered the question I had for Underwood Ammo about the 68 grain extreme defender terminal performance in 9mm out of a 16 inch carbine barrel, since the .357 Sig offering in a 5 inch pistol is getting the same velocity as the 9mm 68 gr. ED out of a carbine . Excellent video as always!!!!

Good stuff GSRA. Appreciate the time and energy. BTW I've routinely gotten 2098 from my 4" Steyr with that particular Underwood loading

You sir are the first to test this out thank you!!!!

This is awesome define more good reviews on this ammo. I've been talking very highly about this Underwood ammo for years about how it's the next generation defensive round and not a gimmick. Every test I've seen has proven that and now Wilson combat has a glowing endorsement of the product.

Awesome video. As always love your content.

All interesting, Sam.👍 I’m usually not a fan of super light high velocity handgun ammo, but this has potential.

The Underwood 357 Sig 65gr Xtreme Defender averages 2250 fps from my Glock 22 with a 6" KKM 357 Sig barrel installed. Definitely a fast mover.

Good stuff as always. .357sig for the win 🥇! Throw some cardboard behind that target maybe so you can see where those misses are going at 75yds.

THOSE ROGUE WATERMELONS WERE ASKING FOR IT 🙂 love the video man. Great job.

Awesome video! Thank you!

I noticed myself, and the shooter in this video, enjoys the follow up shots. This round is actually fun to shoot.

Great video Sam and I can vouch for you usually being pretty good at shooting 75 yds with most ammo. Some ammo just doesn’t shoot well at long distances. 👍👍

Holy Cow! That 357 sig is SCREAMING!!!

You're the reason I bought a 357 sig kkm barrel. It's amazing. Just got a good deal from Palmetto State Armory on some ppu 125 grain fmj. It hits like a hammer and is only 66 cents a round. The velocity on their website is over 1500fps. Great round and if tou have a .40 s&w you can get a 357 sig barrel and drop right in for less than 200 bucks. Thanks for the great videos.

That 357 sig round may be my next carry round.

Nice head to head line up.👍

Thanks Gun Sam another awesome video bro, I hope .357 Sig makes a resurgence I am starting to perhaps consider it's basically 9mm with some of its deficiencies corrected.

Sam, I personally liked the white background you used before, behind the watermelons better than no background. It looked like a more profound explosion on slow-mo replay. Just a thought.

This settles it. Once I get my FFL I’m picking up a 6” 1911 in 10mm and then fit a Bar Sto barrel in .357 SIG. If that extra inch manages another 50 fps then that’s 780 foot pounds. But still, even the 5” is incredibly impressive.

Very good video, thanks. I’d use the 357 Magnum Hunter as a preferred load. Too bad about the 357 Sig POA/POI, pretty typical of ultra fast/ultra light loads.

My carry load in .38 Super is the Underwood 90 grain Xtreme Defender. 1560 from a 4.25" Commander and 1650 from a 5".

Great video, tanks

Thanks. Good video. Take care.

I’m getting ready to order some ammo on Labor Day hoping for a sale 😊I ordered some of their hardcast cherry coated 150 grain 38special wadcutters should be delivered today 😊they have been sold out for awhile 🙁 I also love the 125 +p gold dots in 38 special I got they are definitely the hottest 38 special ammo I own my 638 air weight loves them I use a pachmayr gripper grip 👍 Love your channel 👍👍👍

I'm kinda impressed by that light zippy round. I think it managed to penetrate because it didn't disintegrate on impact like a jacketed lead round probably would. It's also interesting that your two hits with the Magnum on steel were almost on top of each other. It made me wonder why the others missed. Do you adjust for each shot, or do you maintain the same point of aim regardless?

Thanks I have some of their 125 gold dot sig 357 and to me they definitely have a bigger kick than my 40s&w ,9mm+p all Glocks g23 , g23 with a sig barrel,g45 or my 638 s&w with + p ammo

Very good test

Wow that's rifle type velocities out of the SIG.Hydrostatic Shock I've heard it called because when the projectiles hit tissue they displace the water in the tissue.They say that hydrostatic transmission occurs over 2000 FPS.

Great video! Looks to me that that bullet type would penetrate a car body easily and still be effective.

Another interesting comparison. Personally I feel the felt recoil of 357 Sig to be less than that of 40 S&W. My comparison is based on using my SIG P226 which came with 2 factory barrels. One in 357 Sig and one in 40 S&W. As a result my EDC is my P226 with 357 Sig barrel installed. Only exception to this is if I am hunting then I carry my Ruger GP100 in 357 Mag. A habit I got into from when I used to live in Florida and could come across gators or boars while hunting.

KKM makes the BEST aftermarket barrels. 😌

.357 Sig is a screamin demon!

I to prefer 38 revolvers and load 148 gn dewc for target and defense. I do also carry a 380 for connivance for which I also reload with 95 gn lead flat nose. I am aware of the performance of the 38 wad cutters but I am curious as to the performance of the 95 gn lead flat nose in the 380 and also loading it in a 38 special for which I tried out with excellent accuracy and with very low recoil. I do not have a way to record velocity but data for a 95 gn in the 38 was around 1000 fps. I use silhouette powder with which I’m very happy.

Hollow base like a foster slug, that 65 is incredible penetrator of barriers.

Love the 357Sig ...

9:38 excessively fun! 🤩

That 2200 FPS is the magic number for that rifle like damage!!!

Almost got your chrono! Lol I've shot one of mine before on accident...

My laser sight does 3x10 to the 6th power mps but the gel blocks are unimpressed.

Sam, I've watched all of your work. I trust your opinion, you're an expert. In your opinion, are these Extreme defenders as good as they look? The damage in gel looks worse than anything I've seen. But is it just because it's gel? Would it have this type of effect in flesh? I've heard some say these are fools gold, look amazing but really are just a by-product of the medium. What's your honest assessment?

Either round will deliver the goods that's for sure. .357 mag will still reign supreme in my book. I have both. .357 SIG has a tad more felt recoil out of a G23 C with a conversion barrel, and upgraded recoil spring with +2 lbs. Can't complain at all. 🎩♠️🎱🎯🇺🇲🏁🇺🇦🌻🔱💮🌼🌸🍀🔫👊

looks like a great round one thing I always wanted was a Glock clone with a tokarev conversion barrel because I don't think anyone's ever done it but would be fun

I have the Pro version of that M&P. ( KKM barrel 357sig) The main difference is fully adjustable fiber optic rear sight. Yes, all the light copper bullets hit low. My theory is, lead bullets are rear weight biased. Rear drops, nose goes up, bullet gains slight altitude. I think the copper bullets make a laser strait path to the target.

I must have stock in Underwood by now LOL. I shoot the 357 Sig 65g out of my Beretta 96a1 w/EFK 5.3 inch barrel. Quite effective.

.357 Sig….. the “S-400 hypersonic cruise missile” of the semi auto defensive pistol caliber world. I got mine! 😎

It's would be a dream to see underwood 100gr 10mm extreme Defender vs 68gr 357sig extreme Defender

Those watermelon never stood a chance 🍉 ☠️

.... I've been waiting for this one and I'm thinking about doing one myself. Great video! I carry this staggered in the 68gr/90gr Defenders and 115gr Penetrators (I also throw the Civil Defense 50gr into that mix as well). Your aim was not likely off. The ballistic coefficient is notably low because they are so light - which creates a notable degree of drag on the projectile and especially outdoors with wind/crosswind. Basically, they're designed for close-quarter defense. I have much better accuracy results with the 90gr Defender, but there is nothing that I've shot from my M2.0 357 Sig that even remotely comes close to the temporary cavitation that the 50gr Civil Defense and 68gr Xtreme Defenders impart. Extremely deadly rounds.

Both are effective, both are impossible to find. If you find it, it’s expensive.

Try testing them with soft body armor

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Clocked 2282 FPS from my 5 inch barrel Glock 22 with alpha wolf 357 sig threaded barrel

I might be biased... LMFAO

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Take your hat of bro! Let the moisture escape out the top of your glasses.

357 sig rules!! And with that round lol forget it

I am surprised the sig round helded up at that volisaty.

Underwood Extreme Defender bullet. I saw this non deforming bullet being tested in .32 auto. into gel. It delivers a 100 percent increase in PWC , it is said. Yes the Sig .357 is awesome but is it necessary and more capable to incapacitate in reality ? You know why the revolver will never be able to compete with the Sig .357 chamber because of the cylinder gap. Use what makes you happy, I'll say. Hopefully all of us will never be presented that need to defend our life.

My 357 bore measured .356 so I shot 9mm slugs .

The 65grn. are a machined bullet. The 68grn. are cast. The 65grn. will eventually be replaced entirely by the 68grn.

I feel like it’s not as accurate as the heavier rounds out of a Glock 32, but you can tell that it packs a wallop. Also, it sounds almost like a rifle bullet 🤣

You can not use 357 sig bullets in a 357 magnum cartridge reloading . 357sig is .355 ( just like 9mm ) and 357mag is 0.357 or 0.358

Glock 32 duty firearm!!

Guessing your cap bill is trapping your breath around your glasses (later part of the video).

At 2200 fps, it only needs to be 6 times faster, i.e., another 5 times it's current speed to permanently leave Earth's atmosphere if it had zero drag for the first 60,000 feet or so. In that case, coat it with Teflon, tweek it a little, and every government agency would knock at your door.

Try the 90 grain XTP in 357 sig, I loaded to avg 1660 fps, good combo of velocity, energy, and consistent groups. 68 grain is just too inconsistent groupings even at 20 yards

RoaR

2200 fps is Mach 2. The shock wave would jellify all the internal organs, especially if hit in the stomach due to hydrodynamic ram. Someone's getting the chair. Cheaper just to shove em off a cliff.

.357 Sig, every time

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357 magnum is still the daddy of them all...

still slower then Liberty ammo

You are disappointed at NOT hitting a target at 75 yards with a pistol? TWO of those .357 rounds hit dead center-heart! You have HIGH expectations!..........................elsullo

Screw driver bits

hi, to you ... !!! what's matter ... ?!? 🙄😟 a hottest cartridge unmanageable ♨️🤔 ... bye bye

Sure, the ammo is the reason for the misses. Riiiiight. Lol

Stupid shootin 75 yards off hand and think ammo is reason for not hitting target ....

I GOT NEWS FOR YOU!! YOU CAN'T SHOOT FOR ****.

SCREWDRIVER BULLETS ARE 100% SNAKE OIL what clear gel looks like doesn't matter that's not tissue....now the first few inches over 2200fps some not all tissues tear (all tear around 2600p fps) ..357 sig is an impressive cartridge. Lol idiots...any higher velocity round will do more damage first few inches when still at higher velocity until it's momentum/velocity decipates quickly. A lighter faster fmj does this too... flutes don't matter (until rail gun speeds) except to make it look great in easily torn Clear Gel....snake oil

People who like power need to try the 7.5 fk. 1950 fps using 95 -105 grainers. If it used 65 grain bullets they'd be going like 2400 fps. It's a beast of a round and can take down 500 lb animals within 100 meters. It's crazy awesome

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