Here's my ARP 6.8 that fell in the lake
ARP 18" SPR profile match 5R SS barrel
ARP 12 port brake
ARP Super Bolt
ARP 15" SFR rail (custom cut from ARP)
Sitting on Vltor VRA-R lower
Emod stock, RR NM 2 stage trigger
Will overlap holes at 100yds and 1.25" 300yd groups with factory Hornady ammo
The difference is all in the throat. The spec II has a longer throat and a more shallow leade at the origination of the rifling. These 2 differences allow the use of higher performance loads in the spec II. The difference is similar to a comparison of 5.56mm & the .223 Rem.
Well you don't want another .223, you want something with more power and a little more accuracy. You also only want to shoot out to 200yds. The distance rules out the large calibers leaving you with the 6.8 and 6.5. If you were shooting longer ranges I'd say the 6.5, but you're not, so the cost would not be justified. So by default I'd say the 6.8. On a side note I think only shooting out to 200yds is completely within even 16" barreled ARs capabilities. If you are having trouble getting good groups w/ your operator you might want to look at your fundamentals. If you said you were wanting something more accurate for shots out to 600yrds then yeah get a 6.8 or 6.5 but not for 200. If your fundamentals are good maybe look at a light trigger. A good trigger can help out a lot, especially if you have a nasty mil-spec trigger in there now. I'm not trying to be rude, just wanna help save you save some money. I could put a $5000 AR w/ every mod known to man that shoots 1/4 MOA and if your fundamentals are garbage you will still have horrible groups at 200yds. Another thing to consider is your bullet weight. Your twist rate will tell you the optimal weight bullet to use. If you are shooting 55gr out of a 1:7 then you will gain power and distance by moving up to 80gr bullets. There are a few things to think about. Hopefully you won't have to get a whole new rifle, unless you have the money and just want 2 ARs that shoot 200yrds, then by all means go for it. Hope this helps, Nick
Thanks for that advice nick! I get what you're saying about the fundamentals and you are 100% correct. The thing is I got a little extra cash right now and I'm kinda wanting a new ar. The reason I said 200 yards is because to be honest I don't really attempt shots over that range but maybe if I get that 6.8 I'll be more comfortable taking shots like that! Thank you very much for the advice!!
Cool! I was hoping you wouldn't take my post the wrong way. It's so hard to convey something on here w/o sounding harsh. Yeah you will have a lot of fun w/ your 6.8. If you have any trouble w/ grouping once you get it just look me up and we'll figure it out over the phone or something. If you want to build one from scratch let me know, I have a lot of spare parts and a billet lower I could part w/. It's way more rewarding hitting targets using something that was once was a box of parts
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