Clarity, physics, logic, why weren't you teaching at my school?! Well done Mark, another gem!

@markandsamafterwork

5 ай бұрын

Lol, thanks man, Cheers

I’ve been paying attention and watching this through dozens of rifles over two decades and I can tell you he is completely spot on and correct without a doubt. Well done Mark.

@markandsamafterwork

4 ай бұрын

Thanks Man, Cheers

This, in my opinion, is your best explanation on such matters. I always wondered about that carbon ring. Thanks Mark.

@markandsamafterwork

5 ай бұрын

Thanks John, glad you liked, Cheers

As usual, you are a fucking legend, mate. Solid, concise, and informative.

@markandsamafterwork

4 ай бұрын

Thanks Man, Cheers

Just found your channel. I'm very impressed with it. I've been a reloader for years and never give any of this any thought. Thanks for making it clear.

@markandsamafterwork

5 ай бұрын

Thanks Danny, Cheers

I had an unusual issue with a 6.5x284. It was at the end of it's life at 1200 rounds. Cases were indicating low pressure (soot all the way to the rim) and high pressure (stiff bolt and shinny ejector swipe) at the same time. My theory is the very worn throat was not allowing pressure to build up until the bullet traveled a few inches then the bullet stopped until rapidly building pressure got it moving again. I've never seen that before or since and I've been reloading 50 years. Replaced the barrel with no further issues.

@markandsamafterwork

5 ай бұрын

Thanks Man

@fyisense9312

5 ай бұрын

Yes, I had a very old 30-30 passed down to me and a normal 42k psi load would blacken but a 165gr Hornady boat tail with a stiff load of 4198 would not (the same load I used in my Contender). Incredibly it was very accurate. Annealing is also imperative.

@lz3572

4 ай бұрын

Thank you for sharing your experience. I’m sure it will help others .

Thanks Mark and Sam. I’m not a shooter, never owned a gun, but I really enjoy your videos and have shared them with several mates. Big thumbs up👍👍👍👍

@markandsamafterwork

5 ай бұрын

Cheers man, thanks

Funny you did this video just a week after I was trying to explain to a fellow shooter at my club. Will forward it to him as you explained it in greater detail. 👍👍 His issue is he might be over sizing the shoulder bump a bit too much as the carbon burn is also down the sides of the case.

@markandsamafterwork

5 ай бұрын

Cheers Man, thanks

Thanks again, Mark. I always find your talks interesting and informative. Much appreciated.

@markandsamafterwork

5 ай бұрын

Thanks David

Always good information. Succinct and to the point. Thank you.

@markandsamafterwork

5 ай бұрын

Thanks Man

Amazing stuff, Mark, as always. Thank you.

@markandsamafterwork

5 ай бұрын

Cheers Man, thanks

You explain this very well. Excellent.

@markandsamafterwork

5 ай бұрын

Thanks Rob

Thank you Mark, I’ve been having this issue for a while, particularly with ADI brass even after I’ve annealed it. It seems to be a very fine line between dirty necks and clean but with signs of pressure. Your video has really given me something to work with, thanks so much.

@markandsamafterwork

5 ай бұрын

Thanks Man

Thanks for the new video brother. I've been watching for almost a decade now. I show this channel to all my shooting friends. We love your content.

@markandsamafterwork

5 ай бұрын

Thank you, all our best man, Cheers

@WanderingBass

5 ай бұрын

@markandsamafterwork you're welcome. You two have taught me so much throughout the years. I always show your videos to people who say certain rounds can only go so far.

Thanks for sharing Mark.Enjoyed

@markandsamafterwork

5 ай бұрын

Awesome, Cheers

Wow. That was excellent. Lucid, well executed and overall great presentation. Thank you! Having been a hand loader for almost forty years I have experienced this condition in most “cases” (pun intended) you describe! Your newest subscriber, Vince

@markandsamafterwork

5 ай бұрын

Thank you Vince, Cheers

Half way through watching and had flash backs to ''The Curiosity Show'', great explanations mate.

@markandsamafterwork

5 ай бұрын

Lol, Cheers Greg, thanks

Hmm. Makes sense when you explain it. Information received. Thanks for doing what you do.

@markandsamafterwork

5 ай бұрын

Cheers Thom, thanks

Add a suppressor to a semi-auto, and it is all painted black. Gratuitous song reference. Another concise, well explained video. Thank you.

@markandsamafterwork

5 ай бұрын

Thanks Digger

@henriklopperi6686

5 ай бұрын

With piston + flow through can I get still glossy brass.

Thanks Mark. Good stuff.

@markandsamafterwork

5 ай бұрын

Thanks Jack

I saw the title for this yesterday and just got back from the range this morning. I noticed my brass was black around the neck on my new .308 AR10. I made a cup of coffee and had to watch this, and I feel better now. 😂

@markandsamafterwork

5 ай бұрын

Lol, Cheers man

Thanks for sharing this information. 👍🇺🇸

@markandsamafterwork

5 ай бұрын

Thanks Dwayne

Thank you. Knowledge is a good thing.

@markandsamafterwork

5 ай бұрын

Thanks Man

Fantastic buddy, Makes great sense😎

@markandsamafterwork

5 ай бұрын

Thanks Bill

Here for this education! Great info as always 🤝

@markandsamafterwork

5 ай бұрын

Thanks man

Excellent content, thank you!

@markandsamafterwork

5 ай бұрын

Thanks Shane

Great bit of information…especially the relation to crimping and case fill.

@markandsamafterwork

5 ай бұрын

Thanks Bob

Relevance as usual Mark thx!

@markandsamafterwork

5 ай бұрын

Cheers Man

Very Clear. Thanks Mark

@markandsamafterwork

5 ай бұрын

Cheers

Great Explanation Mark Thank You 😀😊 😊👍🏼

@markandsamafterwork

5 ай бұрын

Thanks Chris

Great stuff as always👍👍👍

@markandsamafterwork

5 ай бұрын

Thanks Jeremy

Thanks Mark great explanation. As this residue is more like soot than baked on carbon, what I have been utilizing is a very small amount from a product known as Ballistol oil spray on a rag/tissue and then I just rotate the neck onto the rag, usually only requires one or 2 turns of the case; no scrubbing and necks come out spotless.

@markandsamafterwork

5 ай бұрын

Yes, for normal amounts, same here, Cheers

@RejeanBoucher

5 ай бұрын

Auto spell check gets me every time, LoL I edited my post the product I utilize is Ballistol not Ballistic.@@markandsamafterwork

@markandsamafterwork

5 ай бұрын

👍

What I've noticed with my brass is more carbon present when using double-base powders, especially ball powders. So two ways to get around this is to use single base powders or nickel-plated brass. Besides that, everything was spot on. Great info!

@markandsamafterwork

29 күн бұрын

Cheers

Great content thanks for sharing. Very informative

@markandsamafterwork

5 ай бұрын

Thanks John

Great video, very informative, thanks!

@markandsamafterwork

4 ай бұрын

Cheers

I run a lot of lower pressure, AA5744, in 45/70 and they soot up pretty good. If I switch to Unique it’s such a fast burner I don’t have any soot at all. Great info session as always thank you!

@markandsamafterwork

5 ай бұрын

Thanks Man

Good all round info. Just reloading my 6.5 Creedmore. A new perspective on what to look for to be consistent. Thank you.

@markandsamafterwork

5 ай бұрын

Thanks Peter

Another excellent explanation Mark.. Thanks. I've hand loaded everything for two barrels in my 6.5 X 47L. Last summer I purchased factory Lapua ammunition for the first time ever for this caliber. The fired rounds came out perfectly clean at the neck! Which I scratched my head over. Im guessing the factory stuff was crimped. It grouped very very well but was almost 100 fps slower than my handholds with the same bullet. So I have lowered velocity in my handholds and they group amazingly!

@markandsamafterwork

5 ай бұрын

Thanks Man

Thanks Mark . Working up loads with 2206H 100gr 6.5SE load, I had a lot of carbon on the mid pressure loads . Its good to know why .

@markandsamafterwork

5 ай бұрын

Thanks Paul

GREAT VIDEO MARK ... !!!!!! WELL EXPLAINED ... !!!!!! DOUBLE G. !!!!

@markandsamafterwork

5 ай бұрын

Thanks Gary

@davegrimshaw7318

5 ай бұрын

Stop shouting Gary..😂

Good stuff to think about! Thanks!

@markandsamafterwork

3 ай бұрын

Thanks John

Completely makes sense to me. I see the carbon discoloration on the necks of my 300 Weatherby much more than I do with my tight-chambered 270WSM. The Weatherby has some freebore in the throat where the WSM is usually right on the lands, depending on bullet I'm using. Great video, as always!

@markandsamafterwork

5 ай бұрын

Thanks Man

Great lesson man. Thx M&S 🇺🇸

@markandsamafterwork

5 ай бұрын

Cheers Tate, thanks

Thanks Mark. YT did a survey question on if this was a good recommendation for me.

@markandsamafterwork

5 ай бұрын

Awesome, Cheers Charles

Always interesting to listen to you. In my early days of shooting this info was hard to find.

@markandsamafterwork

5 ай бұрын

Thanks Man

Thanks for the lesson!

@markandsamafterwork

5 ай бұрын

Cheers

Good description.

@markandsamafterwork

5 ай бұрын

Thanks Man

Great explanation of the issues and reasons for sooty necks. My 6mm REM Ruger No1 always gives slightly discoloured necks. I use full charges of RL22 which is on the slow side but with 100gr bullets I get half MOA groups so I’m not too worried about the neck colouration issue.

@markandsamafterwork

5 ай бұрын

Thanks Paul, Cheers

Very well explained Mark. Personally I never experienced this phenomenon much when I was shooting, but then I was using the notoriously high pressure.45 ACP! Seriously though, speed of initial pressure rise, neck tension, even things like bullet inertia will affect all of this, as you explained. Thanks for another good video!

@markandsamafterwork

5 ай бұрын

Thanks Geoff, Cheers

Well done explanation!

@markandsamafterwork

5 ай бұрын

Cheers man, thanks

Thank you

@markandsamafterwork

5 ай бұрын

Cheers

Thanks for the information

@markandsamafterwork

5 ай бұрын

Cheers

I didn't think that it was a problem, but,thanks for the video explaining what actually happens, interesting to know

@markandsamafterwork

5 ай бұрын

Cheers

Nice video, thanks bro.!

@markandsamafterwork

5 ай бұрын

Thanks Man

Hi mark thanks again for your time and wisdom great video,very well explained as always mate,I’ve had similar signs with my 6mm ppc USA under loading by 1.5 grains to save components etc shows signs of soot at the case neck.hope Sam and yourself are well great job guys Regards Dave 👍

@markandsamafterwork

5 ай бұрын

Thanks Dave, Cheers Man

I have brass that I use that I got from my dad after he used it for about 25 years and I've had it for probably the last 20 years the cals are 270 and 22-250 most of it is Remington and some win

@markandsamafterwork

5 ай бұрын

Thanks Man

Thank You for sharing. I wasn’t aware of this or how gun powder worked

@markandsamafterwork

5 ай бұрын

Thanks Man

I've had overly sooty cases from using powder that's too slow. For example, I once loaded 55gr FMJBT in the 5.56 NATO using VitaVouri N135 powder. The load was as compressed as I could make it and they were heavily crimped. I had soot all the way down the side of the case onto the case head and covering the primer on some cases. I knew after firing a few this wasn't acceptable and I couldn't keep shooting them but here's the interesting part. The load was superbly accurate and the ES was pretty good. My velocities were around 3050 fps out of a 16.5" carbine. Thanks for covering this topic, I haven't heard it discussed in this detail before.

@markandsamafterwork

5 ай бұрын

Thanks Man, Cheers

I have experienced the gas 'blow by' to discolor brass. I long ago figured out it was 'blow by' doing the effect. However, I didn't realize the lower beginning of the powder charge the effect happens. Good information and good video. Slower powders are more prone. I prefer slower powders in my rifles to accommodate heavier bullets. I can live with more careful cleaning. I do anneal rifle brass every five firings or so. Thanks for the real information.

@markandsamafterwork

5 ай бұрын

Thanks Man, Cheers

I noticed this on my new 7mm PRC with the 175 gr ELD-X. All 18 rounds so far.

@markandsamafterwork

5 ай бұрын

Thanks Ian, Cheers

A great explanation and details. Perhaps worth mentioning that perfect seals around the bullet and cartridge are impractical otherwise it would be impossible to load and unload the gun, let alone fire a bullet along the barrel. There will always be some small gap where high pressure gas will blow by.

@markandsamafterwork

5 ай бұрын

Thanks Man

I agree Mark. For peoples info, I believe you need to remove this black soot (Carbon), off your cases, prior to resizing these cases. The reason I suggest this is, this Carbon (on your cases) is actually harder than your steel of your reloading die, so it can actually scratch the inside of your resizing die. So, how do I remove this carbon? I wipe it off with a clean rag, or if there is a lot of carbon, as you suggested, I also use a well used/worn 3M Scotch Brite pad, that I have on my reloading bench. Hope that helps. JB

@markandsamafterwork

3 ай бұрын

Thanks John, Cheers

Yes, I do see more on low powered loads. I do very light loads for practice and harvesting live stock. 30/06 at ≈1,000 fps with 110 grain cast bullets.

@markandsamafterwork

5 ай бұрын

Thanks Paul

Yep! I agree as to crimp versus non crimp, I had an issue and realized it was also head space and slight carbon buildup on an old 30-06. My brother borrowed my rifle and when I got it back was when I first noticed it but he also ruined rifles crown because rifle never shot the same. I went from a sub MOA to bullets all over the place.

@markandsamafterwork

5 ай бұрын

Lol, thanks Man, Cheers

always wondered why this occurred, thanks!

@markandsamafterwork

5 ай бұрын

Cheers

Great material. 👍 I'm just starting my adventure with ammo reloading. Pozdrawiam z Polski 🇵🇱

@markandsamafterwork

5 ай бұрын

Thanks Adam

I get this constantly with most factory ammo on my favorite hunting rifle , 7mm rm from weatherby . But it’s a shooter so I ain’t messing with it

@markandsamafterwork

2 ай бұрын

Cheers

When I get that, it is usually time to anneal or look at increasing the neck tension.

@markandsamafterwork

5 ай бұрын

Thanks Man

Interesting. Thank You. I tell people to always save brass, whether they reload or not. Cases tell a story. An example would be, someone tells me they're getting misfires. I ask, " do you have a fired case"? "Noooo". You try to help.

@markandsamafterwork

5 ай бұрын

Thanks Rob

@robertsansone1680

5 ай бұрын

@@markandsamafterwork Very interesting information. I learned some things. Thanks again.

@markandsamafterwork

5 ай бұрын

👍

My custom built falling block chambered in 223 does this with 4198 but still has produced some five shot groups in the .2’s 3’s and will average 1/2 inch 100 yard groups, so while informative it’s not a big deal.

@markandsamafterwork

3 ай бұрын

Cheers

I have had low pressure cause gas to move past the bolt and spit in my face. The answers are as you mentioned increase pressure and or soften the brass by annealing it. Driving pressure up can be done by crimping, by raising the charge and by reducing case capacity via use of fillers. Fillers also keep charge pushed against the powder.

@markandsamafterwork

4 ай бұрын

Thanks Man

I like to use H4895 for reduced recoil loads in my 300 Weatherby. I can plink all day long using that power and 150-grain bullets, but if I go too low, the necks will not seal, and soot will blow back all the way to the belt. If the soot is too thick, it can be difficult, if not impossible, to remove. It seems to impregnate the brass.

@markandsamafterwork

5 ай бұрын

Thanks John, Cheers

Hi Mark, I fired and resized 5 times and scrapped the brass, didn't want to experience case separation. Didn't know you could anneal the brass, thanks for the info.

@markandsamafterwork

5 ай бұрын

Cheers Will

@davesullivan972

5 ай бұрын

I use a straightened paper clip with a 1/8" bend (L) on the end and run it into the case to see if the case is thinning above the base!

@gristlepounder

5 ай бұрын

I've gone over 20 reloads on Lapua for F class competition by annealing. Use paper clip method below or bore scope to inspect.

All of my 308 subsonic loads come out looking like that. It worried me a little bit. Thanks for explaining the reasons.

@markandsamafterwork

5 ай бұрын

Cheers Man

I couldn’t find any videos to address this problem. Purchased a new rifle recently and it seems to be a lot of carbon on the neck and some on shoulders. This video will presents a lot more options to help reduce this issue. Thanks for info.

@markandsamafterwork

5 ай бұрын

Awesome, thanks Charles

I have also seen a reduction in carbon on necks when using hotter primers. Makes sense that the extra pressure early on would cause quicker chamber sealing.

@markandsamafterwork

5 ай бұрын

Yep, thanks man

Next Mark will give us rhe rundown on red necks😂

@markandsamafterwork

5 ай бұрын

Lol, Cheers

Not to knock your statement of gas getting in front of the bullet as shown in your high speed video. I’ve found it also to be common, and especially with surplus guns, to have the rifling eroded at the muzzle. I suppose this is the result of repeated cleanings, sawing with a steel rod, from the muzzle. This is easily found with gauge pins, and remedied by moving the muzzle back the distance of the length in the wobble of the gauge pin and recrowning. I brought this up, as I suspect it may also be a factor in the gas getting ahead of the bullet, in your high speed video. Thanks for sharing. Cheers

@markandsamafterwork

5 ай бұрын

Crown has a big effect on accuracy, but no effect on the necks an little to no effect on gas getting in front of the bullet, but yes that is a way to fix a poor crown, Cheers

At 3:50 the flame in front of the bullet is unburnt powder igniting. The air/fuel ratio is correct for combustion.

@markandsamafterwork

3 ай бұрын

Cheers

With a 300PRC w/N570 I got good performance but horrible soot - H1K, retumbo, N565 were all good. But in a 300NM w/same powder/primer my barrel/chamber were nicely clean.

@markandsamafterwork

5 ай бұрын

Will be in one or more of these details Paul, Cheers

Video came at the perfect time. Been having this with my 7mm-08 and wondering what was going on and how much of a problem it was.

@markandsamafterwork

5 ай бұрын

Thanks Man, Cheers

I have done a bit of machining in my life time, Basically I would say your skirting the main problem If gasses are escaping back at the neck of the brass, Then I would say that the chamber of the barrel was made a little on the lose side But who am I to say, since i'm no exert gun machinist But when brass comes out clean, I would be pointing my finger at the chamber.

@markandsamafterwork

3 ай бұрын

Nope, maybe watch the video, all explained, Cheers

I was actually thinking of my Mosin doing this before I saw the shot clip. I take notice on the 147 grain and 174 grain surplus military loads.

@markandsamafterwork

5 ай бұрын

Lol, Cheers Ron, thanks man

Have never understood where that carbon comes from. Thanks for the informative vid

@markandsamafterwork

5 ай бұрын

Cheers Man

THANX M N S

@markandsamafterwork

3 ай бұрын

Cheers

I got here so fast

@markandsamafterwork

5 ай бұрын

Lol, cheers

Allways new about them but no body could explain it Now that I lnow wont worry me either

@markandsamafterwork

5 ай бұрын

Cheers

Thank you, I was wondering why my 1919 Model 96, 6.5 Swede was doing that, when I changed powders it wasn't as bad, I thought it was too much pressure, I was wrong...... now I know.

@markandsamafterwork

5 ай бұрын

Thanks Man

Sooted necks is insufficient pressure to seal the case and powder fouling can get around the case mouth.

@markandsamafterwork

4 ай бұрын

Cheers

I always see this kind of blow-by in my hand-loaded 45 Colt cartridges. They have usually very little propellant in them (originally a black powder cartridge) and almost the entire case is black after firing.

@markandsamafterwork

5 ай бұрын

Yep, Cheers Man

I get that with my 338 Lapua with Retumbo,Thanks

@markandsamafterwork

5 ай бұрын

Thanks Terrance

I'm running at the upper limit of pressure, and I still get this black on the neck 223 rem 80gr sierra matchking with 24.5gr varget cci br4 primer lapua brass

@markandsamafterwork

5 ай бұрын

As said, more than just a pressure issue, Cheers

Black necks like that are likely to be normal if you have a POF armory chamber. Those chambers use gas to help eject the casing.

@markandsamafterwork

5 ай бұрын

Cheers

The simple explanation is that the pressure is too low to obdurate the case to the chamber properly, sealing the case pressure in the chamber. Powder burn rate or charge weight in a properly cut chamber may reduce sooting on the case!

@markandsamafterwork

5 ай бұрын

Cheers

Powder to slow burning a fast powder would seal neck and shoulder to chamber

@markandsamafterwork

5 ай бұрын

Cheers

I can see where the typical shooter might think he has to take this phenomenon to heart and start fretting over stopping the dirt smudges. A guy has enough to do just finding the load his rifle likes for accuracy, start worrying about stuff like this and you just unnecessarily complicate your life. The caveat of course is how bad the smudge is, which may indicate a problem needing attention. It is the nature of the beast, seldom do we get a perfect scenario because with cartridges and guns they are constantly changing in spec and character, like brass hardness, erosion of chamber surfaces and variances in shooting conditions and components.

@markandsamafterwork

3 ай бұрын

Cheers

nei libri di balistica , viene anche definito come un segnale di usura dell ' inizio della camera di scoppio , specialmente se diventa molto abbondante , ma può essere legato anche alla poca elasticità dell' ottone del colletto.

@markandsamafterwork

5 ай бұрын

Thanks Walter

Great video Mark, very informative. Are some calibres worse for this than other's? I am getting this on my .243. I will look at my loads and also try crimping as you have suggested and see if that helps. Cheers.

@markandsamafterwork

5 ай бұрын

All can have this issue, otherwise all explained, Cheers

I got the black neck for my 6.5 Creedmoor. My charge is in the low side of 40.1 grains H 4350.

@markandsamafterwork

5 ай бұрын

Thanks Paul

I figured the powder was showing me that the brass was needing annealing due to it being work hardened.

@markandsamafterwork

4 ай бұрын

Can be, but not the most common cause, Cheers