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I was just about to say THIS.
There are hundreds of thousands of carbines out there which has proven themselves under the harshest conditions.
Is a middy better...yes...noticeably...maybe...but like myself and others have stated in carbine -v- middy threads before, has the quantitative testing been done to determine if there is a statistically significant difference? At least not yet.
It will be a helluva long time, if ever, before middies out number carbines.
I think it's pretty easy to demonstrate the principles that support the concept - shorter dwell, delayed extraction, lower gas volume, lower bolt speed, distance and arc of ejected cases, etc., can be observed and measured in a midlength. given these factors it's logical to assume lower stress to the parts of the mechanism.
I know you are asking for empirical testing that compares something like a large quantity of middies vs. CAR firing same ammo in same conditions and evaluating failures but do we actually have to do that to be able to infer, scientifically, that one is more longterm reliable than the other?
I mean, no one really knows what the atmosphere of Saturn is made up of but through radiographic spectral analysis, we can take a pretty good guess, right?![]()
never push a wrench...
I didn't really want to turn this into yet another science debate, I just wanted to point out that things that people have a tendency of going around spouting as if ffact are too often things that they are only repeating.
and yes, I'd still like to see someone quantify all these claims in some way other than grainy high-speed video.
and I'd also like to know if "stress on the parts" is considered to be high enough to be cumulative and if that cumulative stress really matters in any meaningful way. After the whole debacle of the HPT debate it's clear that many people have just enough knowledge of things to be dangerous and perhas too much to be willing to ask questions.
Last edited by rob_s; 11-08-10 at 13:41.
I have a POS Bushmaster 14.5" carbean upper with like 30k rounds through it. It still head spaces ok, and will hold under 2" groups at 100 as of last weekend.
If you're shooting only 1000 per year... you'll get at least 30 years useage out of it.... give or take.![]()
This thread is a big relief to me. I just purchased a ddm4 carbine about 2 months ago. I was sure that I had bought the best carbine in my price range until I started seeing the craze for midlength systems. I found thinking that I may have made the wrong decision and maybe should have bought a midlength carbine. I am new to the rifles and am trying not to get too caught up in the newest coolest shit craze. I almost bought a new lower to build a midlenght m4 recently but now I think that the money would be better spent on ammo and learning to shoot the carbine length system I have. I will probably shoot no more than 5k next year and I am sure the ddm4 will serve me well.
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