GuysModel94
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Are there any drawbacks to the lightweight barrels Delton sell's in it's rifle kit's. The gun is to be a truck and plinking gun built as cheaply as possible.
AR Barrel Question???
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Their just more prone to verticle stringing with prolonged shooting. You probably won't get benchrest accuracy either, but I'm betting it will hold 1 to 1.5 MOA at 100 yards. You get the advantage of a nice lightweingt gun though. Hope this helps, brian.
GuysModel94
Member
Thanks Gents, looks like i can built an AR for about $580.- plus taxes and fees.
HBAR barrels are sold on the myth of accuracy, when in fact a lot of shooters don't even know how accurate they are. Milspec is 2MOA from a government gun with issue ammo, and has been since the 1950's. Lake City documents are posted on the web from then, the test is the same: Ten shot groups at 100 yards must average 2MOA.
On the internet, that equals a .50" three shot group hand selected from a day at the range.
Lightweight, i.e. "pencil barrels" can do that, the weight of the barrel really does little to protect accuracy. What's intended - by benchrest shooters in sleds at ranges- is to avoid moving the POI from inclusions and stresses inherent in button rifled bar stock barrels. If they were bigger, the term "billet" would apply - a big chunk of metal straight from the foundry, machined to shape. As a class of barrel, they don't reliably expand as they heat up, and the barrel bends one way or another, at random, moving the muzzle and point of impact. That's what billet gets you, the heavier ones just accept more BTU's of heat before reaching whatever critical temperature that barrel starts distorting at.
Hammerforging eliminates a lot of the bending, which is why the European combat guns are more inherently accurate. The inclusions and defects in the steel are literally pounded out forming the barrel, and the molecular slip planes become much more concentric around the mandrel, instead of left in whatever natural random shape the foundry rolled into them.
In any case, shooting from a cold barrel on the second day of hunting is much more likely not to need another 6 oz of dead weight. There is a valid point to the argument about where the first round goes, that's the one you need sighted in hunting or in self defense. Compromising that with long range target precision and extra weight is a tradeoff many make, only to complain about it and buy something different. So do CCW carriers, usually moving out of steel receiver large caliber guns, into smaller polymer autos simply because that's what they really do with them - carry it, not shoot it all day.
Most hunting guns sold retail use lightweight hammerforged barrels precisely because of it, it's the AR industry still stuck in the past with button rifled guns tied to a 1950's military specification. Time to move on.
On the internet, that equals a .50" three shot group hand selected from a day at the range.
Lightweight, i.e. "pencil barrels" can do that, the weight of the barrel really does little to protect accuracy. What's intended - by benchrest shooters in sleds at ranges- is to avoid moving the POI from inclusions and stresses inherent in button rifled bar stock barrels. If they were bigger, the term "billet" would apply - a big chunk of metal straight from the foundry, machined to shape. As a class of barrel, they don't reliably expand as they heat up, and the barrel bends one way or another, at random, moving the muzzle and point of impact. That's what billet gets you, the heavier ones just accept more BTU's of heat before reaching whatever critical temperature that barrel starts distorting at.
Hammerforging eliminates a lot of the bending, which is why the European combat guns are more inherently accurate. The inclusions and defects in the steel are literally pounded out forming the barrel, and the molecular slip planes become much more concentric around the mandrel, instead of left in whatever natural random shape the foundry rolled into them.
In any case, shooting from a cold barrel on the second day of hunting is much more likely not to need another 6 oz of dead weight. There is a valid point to the argument about where the first round goes, that's the one you need sighted in hunting or in self defense. Compromising that with long range target precision and extra weight is a tradeoff many make, only to complain about it and buy something different. So do CCW carriers, usually moving out of steel receiver large caliber guns, into smaller polymer autos simply because that's what they really do with them - carry it, not shoot it all day.
Most hunting guns sold retail use lightweight hammerforged barrels precisely because of it, it's the AR industry still stuck in the past with button rifled guns tied to a 1950's military specification. Time to move on.
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