post your M&P sport round count

[SSgt M]

If possible we should sticky this thread.

Now with the threads melonite over chrome lined M-4 barrels, I feel we should see what's what. So I found this US Army post.

The U.S. Army reported the Mean-Time-Between-Failures (MTBF) for M16A2/M4/M4A1 barrels is 9600 rounds. These are chrome lined barrels with a 1:7 twist made out of 4150 steel (just like Bushmaster & Colt use), and they see full-auto use. Also note the military is using full power M193 & M855 rounds, while most commercial .223 runs 100 to 200 fps slower (with the same bullet weight). The 1:7 twist barrels do burn out quicker than the 1:9, especially under full auto stresses. For a chrome lined barrel on a semi-auto only rifle 20,000 rounds (or more) can be expected. [Warning: More civilian barrels are ruined to over (or careless) cleaning than to being "shot out".] Stainless barrels won't last as long, 4140 steel barrels wear longer than stainless; but not as long as the Colt 4150 barrels (w/o the chrome lined bores). nor as long as the chrome lined bores (given the same shooting)."

 

[cyphertext]

I like this idea, but would also like to ask for folks to post any failures, and at what round count. Be interesting to see how these Sports stack up.

I would start, but mine hasn't seen any range time yet...

 

[SSgt M]

2 Weeks,
600 rounds,
zero malfunctions

Also, if a malfunction exists, please elaborate.
Magazine type
Bad round
Bad primer etc.

 

[TangoFoxtrot]

2000+ rounds (Actually NOT ENOUGH!!!) mostly run & gun not just static target shooting. My S&W M&P Sport is flawless!! .

 

[rojodiablo]

8 months, 5000rounds. Still tight grouping. No issues of any kind other than cheap Thermold mag induced FTF.

 

[Dragon88]

Few regular people have enough money for ammo to every put a significant round count through their ARs. Significant is not "1000 rounds with no malfunctions!", "200 rounds with no manfuctions!" as this thread will quickly become. 60,000 rounds were fired though participants in one stage of the military's M4 replacement program, and that was merely to collect data. The FN SCAR Light fired...a lot...of rounds in testing, making it the most heavily tested small arm ever, and was rejected by the proponent agency for purchase.

What do you consider a "failure" in a worn barrel? There are plenty of "shot out" M1 Garands and M1 Carbines out there still endangering X rings.

Sorry but your thread needs more thought and specificity IMO.

 

[Splittiebus66]

I've lost track of how many rounds.....gratuitous mag dumps. I feel sorry for those in Kalifornia.

This rifle is GTG.

 

[Splittiebus66]

Few regular people have enough money for ammo to every put a significant round count through their ARs. Significant is not "1000 rounds with no malfunctions!", "200 rounds with no manfuctions!" as this thread will quickly become. 60,000 rounds were fired though participants in one stage of the military's M4 replacement program, and that was merely to collect data. The FN SCAR Light fired...a lot...of rounds in testing, making it the most heavily tested small arm ever, and was rejected by the proponent agency for purchase.

What do you consider a "failure" in a worn barrel? There are plenty of "shot out" M1 Garands and M1 Carbines out there still endangering X rings.

Sorry but your thread needs more thought and specificity IMO.

Hmm you have a point I guess. But then again maybe something useful will come of this thread. Maybe everyone here can post their round count when the gun fails because of the lack of F/A and Dust cover specifically. I cant keep track of how many rounds I've shot. I've spilled a whole bottle of Hoppes 9 though and I think I did it on purpose. Its making everything fuzzy.............

 

[SSgt M]

The intent is two part, first, is to see at some point where and when our melonite barrels start having issues, if at all. Considering the initial post related to milspec barrels, which are used buy leading manufactures. It gives a kinda base line comparison. Second, to gather intel on malfunctions, and possibly over time see if there is specific wear based on higher round counts.
Keeping in mind this weapon is designed a little different, common AR platform tech is of little use.
It would be nice if this were kept to sport round count only.

 

[Splittiebus66]

Ok I'll volunteer. Everyone send me your 223/5.56 ammo and I'll shoot it till it fails. PM me your apprx. round count you are sending and I'll take off the appropriate stretch of work.

 

[cyphertext]

Few regular people have enough money for ammo to every put a significant round count through their ARs. Significant is not "1000 rounds with no malfunctions!", "200 rounds with no manfuctions!" as this thread will quickly become. 60,000 rounds were fired though participants in one stage of the military's M4 replacement program, and that was merely to collect data. The FN SCAR Light fired...a lot...of rounds in testing, making it the most heavily tested small arm ever, and was rejected by the proponent agency for purchase.

What do you consider a "failure" in a worn barrel? There are plenty of "shot out" M1 Garands and M1 Carbines out there still endangering X rings.

Sorry but your thread needs more thought and specificity IMO.

I think you have a point. I guess I am just looking for data for when I get handed the "Your rifle is a ***...it doesn't meet spec." line. It would be nice to have some type of real world data points showing actual round counts. I agree, we probably won't see someone post up 60,000 rounds, but maybe 12,000 in a year....And, if we see that these rifles aren't holding up after 5,000 rounds (which I doubt), we would also have the data showing that we should have all bought the Colt.

 

[cyphertext]

Ok I'll volunteer. Everyone send me your 223/5.56 ammo and I'll shoot it till it fails. PM me your apprx. round count you are sending and I'll take off the appropriate stretch of work.

I couldn't let you go through all that trouble by yourself. I'll help!

 

[Splittiebus66]

I couldn't let you go through all that trouble by yourself. I'll help!

cool cypher sounds good. That way I can tell my old lady " hey me and cypher wore out the S&W Sport. I'm spending $2500 of our savings on an M1A."

 

[Dragon88]

What is the source of the "US Army post". Because you're basing your thread around it, and that quote has a lot of problems with it. The Army doesn't care about 9600 rounds being fired, that doesn't trigger or a barrel change or something. M16s/M4 get shot and shot with no record or consideration of round count. I have participated in 1000 round per day courses, and that's not even very big. By your posted quote, the way you are trying to use it, that means I should have started expecting "failures" in my M4 after 10 days of shooting. That is simply not the case.

Also I'm still curious what you think a "failure" from a worn barrel is. Extreme round count stress is used to test the entire system. You're talking about the melonite 1:8 5R because it's the big buzzword for the Sport, but I would be more concerned about the bolt, the extractor, gas key staking, etc etc in regards to failure.

 

[oneyeopn]

Dont laugh to hard but my round count is 42 yes thats right 42 big ones and it snowed again last night and is still snowing and I know she doesnt care but I'm not going shooting today!!

As I understand it, the military changes barrels, my cousin is a USMC armorer when it no longer fires accurately. So if we keep track of our rounds to where the rifle quits shooting accurately then we would know how long the barrel lasts against a chrome barrel...good luck!!

 

[SSgt M]

The post was from some army testing provision in 2000. To add, I'm also done with your tech dispute. If you shoot an M&P sport please share your real world data.

 

[Dragon88]

So whatever stats that "post" is based on, it ignores 10 years of war, 11 years of TDP updates, a magazine follower change, a service round change, and updated beliefs on training and maintenance.

 

[SSgt M]

Army posted, so I went with it. however if you can find reliable info in reguards to mil spec weapons, malfunction rates vs. round counts. Please post it.
I'm looking for m&p sport data, not your driven expression against an Army testing post.

 

[oneyeopn]

Army posted, so I went with it. however if you can find reliable info in reguards to mil spec weapons, malfunction rates vs. round counts. Please post it.
I'm looking for m&p sport data, not your driven expression against an Army testing post.

Sarge, I wasnt trying to offend you, I have very high hopes for my sport, and have been looking for other gun manufacturers who use Melonite or whatever they want to call it. Glock calls it Tenifer and then there are a few others who use it, Adams Arms, Drakes Gun Works, Coal Creek Armory and it seems that there are more daily. If you look through the other forums this is becoming a heated discussion in more than one. I really want to know how it holds up and if it meets all the hype, actually have my fingers crossed. Like you I would like to see real data just like you quoted from the Army, please remember the Marine Corps doesnt get rid of anything until it is so worn out that it cant be repaired just one more time, and usually they repair it then and then issue it. LOL

 

[SSgt M]

My reply was pointed at dragon. For those of us with the sport, this info could be useful. Which is why id like to see comments from members about there m&p sport.
Would be nice if this board didn't turn into m-4carbine.net or others like it.