DaveInGA
12-10-06, 13:22
Howdy,
I've got a 5.556MM M4 to the point it's about finished and am planning my next build and I'm considering a 6.8MM SPC. The plan is to use these as both a medium range "Spotter's" rifle and as a part time hog/deer gun. In thinking this caliber through, there are some questions that have come up I'd like to see if I can get cleared up.
1. What is the realistic maximum effective range of this cartridge of a skilled rifleman? (Note: Assume magnified Eotech setup.)
2. What is generally thought of as the optimum barrel length? Is it 18 inches?
3. Is a BUIS a worthwhile setup with such a rifle? Would it be better just to use a standard fixed power scope such as a 6X?
4. Are feedramps on the receiver and barrel considered a "necessity" in this caliber due to the larger diameter bullet tip in the AR15 receiver? Would the rifle function as a "semiautomatic only" just as well without the feed ramps?
Thank you in advance for your assistance in the thought process.
Dave
I've got a 5.556MM M4 to the point it's about finished and am planning my next build and I'm considering a 6.8MM SPC. The plan is to use these as both a medium range "Spotter's" rifle and as a part time hog/deer gun. In thinking this caliber through, there are some questions that have come up I'd like to see if I can get cleared up.
1. What is the realistic maximum effective range of this cartridge of a skilled rifleman? (Note: Assume magnified Eotech setup.)
2. What is generally thought of as the optimum barrel length? Is it 18 inches?
3. Is a BUIS a worthwhile setup with such a rifle? Would it be better just to use a standard fixed power scope such as a 6X?
4. Are feedramps on the receiver and barrel considered a "necessity" in this caliber due to the larger diameter bullet tip in the AR15 receiver? Would the rifle function as a "semiautomatic only" just as well without the feed ramps?
Thank you in advance for your assistance in the thought process.
Dave