I'm thinking about putting together a longer range AR15, maybe out to 300-600 yards. I don't want to build from scratch, but would rather buy a complete upper. I'd like a 20'' 1x7 barrel, fixed front sight and/or rail to mount flip front sight, flat-top upper, and free-float tube/rail. I'd like something along the lines of a "designated marksman rifle", that is to say, it doesn't have to be super accurate, just accurate enough at medium ranges.
I was thinking of mounting a Vortex Strike Eagle 1x6 in a Burris PEPR QD mount. Would a fixed front sight interfere with the scope, or will I be able to co-witness like with a red dot or blur out the front sight?
Don't have the money yet for a dedicated lower, but have heard the Gieselle SSA trigger is a good drop-in precision trigger. For now I'll just put the upper on my Colt 6920 lower (which I assume is fine).
I have some questions:
1. Do stainless barrels last as long as chrome-lined barrels? I've heard a 10,000 round count for shooting out a CL barrel; is stainless similar?
2. Do precision barrels wear out faster? I understand the NM and bench rest guys need the utmost accuracy so replace them frequently, but I'm really just looking to ring steel targets at longer ranges. If I shoot for tight groups it will be done at 100, not 500, yards.
3. I was looking at this from WOA: http://www.whiteoakarmament.com/xcart/product.php?productid=17841&cat=259&page=1
I believe it uses a Wilson barrel which I've also read wears out at 1500 rounds. This was also from a NM shooter who might not be satisfied with a 1.5-2MOA rifle which I would be. Are the Wilson barrels better now? Anything not to like about this upper/barrel/bolt?
4. Will there be reliability issues with precision barrels due to tighter tolerances?
5. What are the differences between Service Rifle/NM and Match rifles? Just the sights and forearms allowed? Or are there real differences between the barrels?
6. How are the BCM SS barrels? I've read they are a little underwhelming. Any other manufacturers of complete uppers I should look into?
I was thinking of mounting a Vortex Strike Eagle 1x6 in a Burris PEPR QD mount. Would a fixed front sight interfere with the scope, or will I be able to co-witness like with a red dot or blur out the front sight?
Don't have the money yet for a dedicated lower, but have heard the Gieselle SSA trigger is a good drop-in precision trigger. For now I'll just put the upper on my Colt 6920 lower (which I assume is fine).
I have some questions:
1. Do stainless barrels last as long as chrome-lined barrels? I've heard a 10,000 round count for shooting out a CL barrel; is stainless similar?
2. Do precision barrels wear out faster? I understand the NM and bench rest guys need the utmost accuracy so replace them frequently, but I'm really just looking to ring steel targets at longer ranges. If I shoot for tight groups it will be done at 100, not 500, yards.
3. I was looking at this from WOA: http://www.whiteoakarmament.com/xcart/product.php?productid=17841&cat=259&page=1
I believe it uses a Wilson barrel which I've also read wears out at 1500 rounds. This was also from a NM shooter who might not be satisfied with a 1.5-2MOA rifle which I would be. Are the Wilson barrels better now? Anything not to like about this upper/barrel/bolt?
4. Will there be reliability issues with precision barrels due to tighter tolerances?
5. What are the differences between Service Rifle/NM and Match rifles? Just the sights and forearms allowed? Or are there real differences between the barrels?
6. How are the BCM SS barrels? I've read they are a little underwhelming. Any other manufacturers of complete uppers I should look into?