I do not bother with a fired case to ensure that I am getting an accurate ogive dimension. The shoulder is the datum and not the base of the cartridge, so what counts is the distance from the shoulder to the ogive. That is the difference between the headspace dimension and the ogive dimension. Regardless of the headspace dimension, the difference between the ogive and the headspace will always be the correct number to use. I set bullet length to the difference between the ogive and the headspace. Whether you are using a new case or a fire formed case will not matter if you set your bullet to the difference between ogive and headspace.

Man, great video, I was expecting you'd have more people watching at this point. Thanks for making it. Have a good one.

If the trigger is 2 stage, is there any way to switch it to single stage? Or maybe replace the trigger? Plus, can you replace the stock with an after market one?

Very useful information, thank you

147 from a 5-5.5” barrel would seem to gain enough velocity to perform much like the 124 has in this test. I’d like to see that.

One point - the Hague Convention speaks specifically of expanding bullets. This waste of lead and copper fulfilled that requirement. Better to use a controlled fracturing bullet - it doesn't expand, but it surely makes a more devastating wound than either a FMJ or a non-expanding hollow point. BTW, a +P+ round that's slower than a standard pressure round of the same weight? Ridiculous.

A bit disappointing for not expanding. Good accuracy and velocity/energy but not a good choice for EDC or home defense. If you can get the 147 Gold Dot +p I think that is a good option. I had 115 +p in my wife's 9mm for a # of years back in the day. In 2014 I switched her to 124 +p Gold Dot for a few years then switched her and my daughters who carry 9s to HST 124 standard or +P. Thank you.

Good information and explanation as always. Appreciate the consistency and system. Look forward to up and coming tests. I don't think I would choose this G9 myself but it is another viable option. Options are good. Enjoy.

The speed of sound changes by temperature. The air pressure over density is constant. Frequency, amplitude, wavelength have no influence on the speed of sound. If we talk ideal gas and not 100 km high near vacuum or inside a pressurized car tire.

I agree. Poor choice. 147 grain loadings are usually the worst personal defense loads from what ive seen. I enjoyed the video as well. Thanks for doing this one.

Super informative! Learned several new things today. Thank you.

Ahhh, I believe Winchester is fibbing on the +p+ pressure,, I got a chronograph and do a little ammo testing ever now and then my self, and I’ve got more speeds out of standered pressure 147gr, from a couple of my 4 inch barrel guns, and the regular +p ammo I’ve tested I get around 1100fps, and with a couple of my 5inch barrel guns they get around the 1150fps range, give or take a few feet per second

I wonder if the failure to expand is related to the short barrel velocity. I was under the impression (possibly faulty) that the 9mm +p+ was brought about to use in the uzi and hk mp5 style weapons which have a bit more barrel length to extract more from the load.

I use the 147 gr ball works great while using can

Please add Defiant Munitions 9mm 115 grain + TCX to your PAC-T testing plans.

Consistent ignition is key. High load density aids consistent ignition. The deeper seated bullets increase load density.

Strange thing When mountainsMulletsMerica Ran the 300 prc in a barrett vs an rpr the rpr outshot the barrett. I've never seen an rpr that wasn't lights out and I've see rprs out shoot AI & Barrett rifles. As far as cartridge I'd go 300wsm in a long action

That looks like it already had a light strike from a firing pin...

Wonderful, would you please test the 10mm Woodsman for the same brand?

You shooting innocent people with critical duty. I need new ammo 😮

Does your S&B have the laserschutz filter? I know that feature is intended to protect the user but would it potentially, in addition to the ARD, prevent glint? How realistic is using an ARD at night time? Wouldn’t the commensurate loss of light transmission negate the use at night? P.S. cheers to your son for operating the arty 😉

Is there also a chance we could get a full review of the Schmidt 3-20 you were using?

Hey thanks for giving us the kind of content we don't think to ask for but need!

Actually SS109 is NATO designation of the cartridge, M855 is US designation of the cartridge. The bullet itself has no name

I’m curious how it looks in the dark probably puts off a huge fireball I’m leaning towards the efab

Best brake on the market for flash hiding (90% reduction ) and recoil (56% reduction). Overall I think it is the best AR brake in general. Need more recoil reduction without flash hide? Try Precision Armaments slim hypertap. They do them in ALL calibers and reduce recoil up to 86%. There are uglier brakes but none better.

Excellent test! Thank you for sharing your experience with these shells.

Would you recommend the go juice for pistols and the Alg grease for rifles?

I picked up yesterday 147 gr yesterday 9mm

Just gotta say thank you, even 2 years later. I was gonna spend the money on an app to do it for me, but why when I can get a set of calipers out and do a little math. Your spread sheet is a AMAZING, thank you immensely for that!!

You need a new barrel.

Great explanation! Thanks for the details, while still being very easy to understand. Quick and easy! Love your videos.

i think you missed your control variable with the scope. the exact angle of the mirror glint should've been matched with the scope.

Did you conduct this test on the defense and duty .45? Can we extrapolate the 9mm results to the .45 or would they perform better?

If you pay close attention to what you pick up you can get good once fired brass. Certain headstamps are a no go.

Hard to swatch

Great video as always. Imo the Critical Duty is one of the worst hollow points where terminal performance is concerned. Barrier blind usually means terminal performance suffers.

Since I’m in south Alabama I can’t really do these extreme cold tests. I’ve been told standard rifle primers are not as reliable for ignition compared to magnum primers in extreme cold conditions. If y’all have any exceptionally cold spells this coming winters, please consider a comparison. (If they all still fire, maybe a chrono tests would reveal something)…

Like some of your other viewers here, I'm a bit surprised at the Duty version performance. I know the PAC-T protocol doesn't necessarily allow for multiple shots, but maybe someday you could try shooting a few more of those into the gel, getting a sample size of three or five. The Hornady Critical line is carried by so many, myself included, that these results are concerning.

Humm,, the critical duty ammo surprised me that it didn’t even try to expand,,

Thank you for very good demonstration, data and description. Surprised that the Duty failed. The Defense seems like a 380 +p more than a standard 9mm. It isn't a failure. If one is looking for light recoil and less penetration with some expansion then it is a good option. Appreciate the good content.

What I want to know is where in the world were you where it's 52 degrees in July???????????

Combined Over All Length? Cartridge Overall Length

well if you look very closely you can actually see a little glint from the scope, but not as much from the mirror 😂

This rifle and cartridge combination is so inaccurate that you can proof absolut nothing with it. Not one thing. The last group is as big as the first. I dont get it.

I wish I could stop my heart from beating when taking the shot@😮😅

Great video, I think your explanation matches what I was taught at a marksman course, and helped me greatly. One question what reticle do you prefer in your S&B 3-20 US in this video? also would you consider doing a video going over reticle pros and cons? thanks for all your stuff I really appreciate how succinct it is - Cheers!

Breathing techniques all use are useless in the real world No grizzly bears wait for you to take your breath You’re dead meat 😂 Try my method Inhale and expand rib cage to maximum and lock it then switch to shallow breathing by diaphragms You will never run out of air and still maintaining rock solid hold This technique will work for any shooting Try it you’ll like it

1) Start off closer to the lands. 2) Control A) neck cleaning B) neck tension from .0001 to .0002

You did that for pistol, but what about rifle brass, I shoot a vanguard 243 & have found some brass short?