The heart of an AR-15 the bolt and barrel. Right now I'm shopping for barrels and these 2 caught my eye. Both of these barrels are mid length gas systems with pre pinned .750 low profile gas blocks.
The BA barrel has a continuous taper and comes in at 27 ounces with most of the weight towards the rear. It has a nickel boron barrel extension and the barrel is nitrided with a 1/7 twist rate. The muzzle has an 11 degree target crown (IDK how those help). The reported gas port size is .0785" or .068"(there have been reports of these barrels being under gassed and not cycling lower grade ammo) and the manufacture claims a 1 MOA guarantee with good ammo. It is MPI and HPT. MSRP is $240.
The Sionics barrel is a medium contour barrel with an ever so slight continuous taper towards the muzzle and comes in at 29 ounces. It has a chrome lined bore and chamber with a 1/8 twist rate and the exterior is phosphate coated. The reported gas port size is .076" but someone else said .075" is the number he got from the manufacturer (IDK how important that difference is). It is MPI and X - RAY examined. MSRP is $220.
Anyone have any experience with these barrels and reasons as to which one I should go with? I plan to mainly shoot 55 to 62 grain brass cased ammo. Sometimes the good 77 grain match grade stuff. I just want a good general purpose rifle.
Does the slight differences in gas port size mean much?
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