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Because the carbine has a shorter barrel than the rifle, at the time the bullet passes the gas port the gas behind it is higher pressure. This means the carbine will flow more gas at higher pressure into the action during the firing cycle than the rifle. The mass of the buffer and the spring constant of the buffer spring must be matched to control the energy provided by this flow for reliable operation (ie- don't unlock the bolt and attempt to extract too soon or too late).
You can actually get a variety of buffer weights to help address timing problems. Lots of folks with worn barrels (eroded gas ports) find that going to a higher mass buffer can let them maintain reliable operation and delay barrel replacement, though accuracy still suffers from the wear.
What else can I help you with?
What is the difference between a rifle and a carbine?
A carbine is a type of rifle.
Can you use the fixed butt stock spring and buffer to put on a collapseble butt stock for an AR15?
It depends.. if you have a carbine length barrel and will be using it on a rifle with a carbine length barrel, then yes. If you took it from a rifle with a rifle length barrel, and are putting it on a rifle with a carbine length barrel, then it won't function properly.
What is the difference between a springfield 1873 rifle or carbine?
This Website will answer any question on Springfield 1873- http://www.trapdoorcollector.com/ A quick answer is the barrel on a carbine is shortened for cavalry use.
What is the range of a carbine rifle?
Depends on which carbine. No one carbine, no one answer.
What is a Winchester model 70 carbine?
A carbine has a shorter barrel than a standard rifle. I have a Winchester model 70 carbine in 270 win and there isn't really any difference between the 20 inch barrel and that of my Brother in law's standard length 24 inch barrel, performance wise.
What is meant by the term carbine rifle?
A carbine is a shorter version of a rifle. Named after a mounted French soldier that carried a shorter rifle- a Carabeiner.
What is the M1?
A rifle or carbine.
What is the difference betwee the marlin 336 336 c and the 336 cs?
The model 336 is the regular rifle,the model 336C was the carbine version,and the 336CS was the carbine sporter edition.
Difference between a carbine and a assault rifle?
An assault rifle is a rifle that has more than 22'' inches of barrel and has selective firing rate, while the carbine rifle has a less 22'' inches barrel and semi automatic. ^^ Wrong.. An assault rifle is any select fire rifle that is chambered for an intermediate cartridge... Barrel length has nothing to do with it. The M16 has a 20" barrel length and is considered an assault rifle. The AK47 has a 16" barrel and is considered an assault rifle... Carbines that are select fire and chambered in an intermediate cartridge are still considered assault rifles.
What is the difference between an AR rifle and a AR rifle?
There is no difference between an AR rifle and an AR rifle
What does acr stand for in mw2?
Adaptive combat rifle. i think... Or it might be "Automatic carbine rifle", because the ACR is a carbine, and it's automatic.
What is the value of a JC Higgins Cactus Carbine BB Gun?
The Cactus Carbine rifle was made between 1960-1970. One in good condition is worth around $25. But you did not state the condition of the rifle so it is impossible to give a better answer.
