Armalite Super SASS vs Knights Armament SR25EM

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14 years 4 months ago - 14 years 4 months ago #5036 by Room 055
Replied by Room 055 on topic Re:Armalite Super SASS vs Knights Armament SR25EM
Barry,

Thanks for the information. It sounds like that ceramic coated barrel probably has multiple purposes. I would imagine heat dissipation is one big benefit of ceramic, as is natural light absorption. I have a carbon barrel on one of my 308's, more for weight and stiffness, but heat dissipation might be another benefit. It's a project that is just getting finished up and I'm planning on recording barrel heat and dissipation as part of my final review.

Much appreciated!

*************************************************


BMS,

Please don't respond to any more of my threads. Your latest PM to another member, which I have read, was deplorable. If you have something to say to me, then say it to my face like a man. Your type of back stabbing little weasel would be fodder for multiple blanket parties where I come from. In my opinion, you are not worthy of the company of men, and you should be vanquished to the womens table for good.

Good day to you, child.
Last edit: 14 years 4 months ago by Room 055.

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14 years 4 months ago #5039 by Engineer
Replied by Engineer on topic Re:Armalite Super SASS vs Knights Armament SR25EM
In my work I have to do heat transfer calculations at times. The ceramic layer actually does three things. The emissivity (heat radiating characteristics) is much better on a dark rough surface than on a shiny surface. The standard stainless barrel is similar to fresh blasted steel which has an emissivity that is quite low, so the primary cooling is by conduction and convection. Over a lot of firing the ceramic coated barrel will radiate much more heat and stay cooler. On the other hand the ceramic is an insulator so that less heat is transferred to the air that passes over the barrel. I am sure that the engineers have done the calculations and measurements. Finally the covert enhancement.

Thanks,
Barry

Do I need to move to another thread?

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14 years 4 months ago #5045 by Room 055
Replied by Room 055 on topic Re:Armalite Super SASS vs Knights Armament SR25EM
Nice explanation on the ceramic barrel. Do all the Armalites have a ceramic treated barrel, or just the SSASS? Just out of curiosity since you are an engineer, do you carbon dissipates heat better than steel, especially stainless?

Thanks in advance.

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14 years 4 months ago #5053 by BUILDING MY SASS
Replied by BUILDING MY SASS on topic Re:Armalite Super SASS vs Knights Armament SR25EM
Room...Personal attacks will not be tolerated...I have informed our administrator as to the situation
You apparently came here to cause trouble and there is no place for it here.....thank you for complying.
BMS

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14 years 4 months ago #5055 by Engineer
Replied by Engineer on topic Re:Armalite Super SASS vs Knights Armament SR25EM
I wasn't very clear on the post about the ceramic coating. The coating is on the outside of the barrel. Shiny bright objects like polished stainless don't emit energy by radiation. They depend on air passing by and picking up the heat or conduction by having the energy conducted to an attached device. The ceramic is like a very high quality, high temperature paint. On the other hand ceramic is not a good conductor of heat, so convection or conduction is reduced a bit. More than likely ArmaLite needed a dark finish that could survive high temperatures and the ceramic worked out well for them. One thing about radiating heat is that the barrel is mostly covered by hand guards. The ceramic coating should cool the barrel and make the hand guard hotter. Maybe someone like Uncle ArmaLite may jump in and give us the factory's development thoughts.

Thanks,
Barry

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14 years 4 months ago #5058 by Eleven Bravo
Replied by Eleven Bravo on topic Re:Armalite Super SASS vs Knights Armament SR25EM
I decided to make one last post before pulling up stakes here. Barry, you have been great and I thank you. Room 055 will not be back into this thread because he was banned (probably by BMS) for personal reasons.

BMS, you posted that personal attacks will not be tollerated but you don't seem to have a problem personally attacking a forum member to another forum member. That e-mail you sent me was absolutely uncalled for and very unprofessional as a moderator. You told me to forward it on to Room 055 and I did. You didn't like his reponse and he was banned. Okay, I went ahead and sent your e-mail on to Martin.

Please, lose my e-mail address and don't bother responding to me again. It is because of you that I am withdrawing from this site.

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14 years 4 months ago #5062 by BUILDING MY SASS
Replied by BUILDING MY SASS on topic Re:Armalite Super SASS vs Knights Armament SR25EM
I will reply to Barry and to the rest of the board...
I am sorry Barry and to the rest of you here, this was an issue that followed me from another site where..They are mods, I am not going to get into the details but I will say that they had no intention of buying ArmaLites and was just here to cause issues...
My personal email that he refers to was just that...personal and not from this site as many I have gotten from room from their site.
It was a OLD issue and unfortunately it just couldn't be resolved..
I am sorry that it turned out that way...Eleven Bravo is a good man and was a good friend..
I did what I had to do as moderator of this site in order to Keep the peace...
I am sorry my fellow AR-10 brothers and other members as well, this should never have happened...
I will be taking a leave soon after taking care of a few things and completing a project I am working on...I will soon be posting it for all to see...
If anyone has any comments, please PM me or send them to Mlotz our administrator...
Again my apologies..
BMS

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14 years 4 months ago #5064 by Engineer
Replied by Engineer on topic Re:Armalite Super SASS vs Knights Armament SR25EM
I had seen posts about DPMS, etc and thought that although the name Super SASS indicates ArmaLite, however everyone with any black rifle was welcome. Talking via this site about other manufacturers may help us out with our ArmaLites. The four or five sniper books I mention never say anything about ArmaLite, but they do tell us practical and useful information in setting up the ArmaLite. The chances that one of my rifles will ever be a sniper's rifle are extremely small, but I do think it would be interesting to understand their problems and what they did to overcome them. I am new to the site and have no control over anything, so if I am off base, please let me know. I will try to be informative and treat everyone the same.

It is best to try to keep friends, they are more important than the question over the best rifle. Hopefully there is room for all view points. I would be happy at any time to exchange e-mails with anyone. Maybe if someone puts down my family (or dog as the saying goes), I will have a problem with that, but as much as I like ArmaLite, it is just a rifle.

Best Wishes to Everyone,
Barry

ps. Where is MMSSHH??

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14 years 4 months ago #5069 by BUILDING MY SASS
Replied by BUILDING MY SASS on topic Re:Armalite Super SASS vs Knights Armament SR25EM
Engineer...you are right about that...Keeping friends is important..and we try very hard here to help people and make new ones all the time...But some people have issues that can't be reasoned with..to disagree is fine...as we do here...but if you look through the threads in all categories you will see even if someone is wrong we do our best to still remain respectful...that is what makes our forum one of the nicest ones around.
If a person is in error or does not know exactly what they are talking about all of us use our knowledge to help the topic straiten out...and we all learn at the same time...but telling people that they need to get training or need to take a class is just plain rude...People don't need to hear that from anyone...whether it is from a mod, amin, member or guest...we take our friends and members feeling into extreme consideration and do our best to help not hurt people...As we are all adults...we don't need to be told as if we are children...that is really what that was all about...I have learned over the last several years as to both ends of that spectrum...So rest assured you and all are welcome...Respect for the individual is most important, even if they are in error..we try to help and make them feel like they have learned but taught as well..
BMS

As for MSH...PM sent.

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14 years 4 months ago #5074 by mrraley
Replied by mrraley on topic Re:Armalite Super SASS vs Knights Armament SR25EM
Just a short note...

In the ArmaLite catalog and on their web site, they over exagerate the MOA on all their rifles. The reasoning behind that is that when a person pulls a rifle out, takes it to the range, and finds out that it can do better than what has been stated.

Alot of that has to do with the way the individual shoot has been brought up, the propper maintenance of the rifle, the type of ammo used in the rifle, the glass that is on the rifle, the alignement of the stars, the weather, and so on and so on.

So even though ArmaLite states 1 MOA and Knight will state .5 MOA, you can get .5 out of both, and as for 1000yd shots... well the AMU did a pretty good job of that out at Camp Perry almost sweeping the matches with their version of the ArmaLite AR-10NM.

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