Originally Posted By: baitpileOriginally Posted By: ThePackmanHi all, thanks in advance for anyone who takes the time to respond!
I am looking to buy an RRA upper for Coyote hunting and pairing it with a PSA lower. I was thinking of going with the RRA Coyote rifle. It has a 20" barrel with a 1:9 twist and a free floating barrel. MY only concern is the 1:9 twist. Is 1:9 Ideal for coyotes. How large do folks go up in bullet size and does the 1:9 have substantial loss in range compared to 1:8 or 1:7 due to bullet length limitations. I live in Colorado and might have the opportunity to take some pretty long shots. Is this upper over kill? Will my PSA 18" CHF FN 1:7 (no free floating barrel) do almost as good a job? The AR community sometimes splits hairs on this and I just don't want to blow a bunch of money and not see any gains. Your opinions and advice are much appreciated! Any recommendations on uppers and even lowers are welcome!
Shoot your 18" PSA with a 60 gr Vmax and don't look back. 200 and in, you are golden. Free floating an AR for hunting, especially at 200, you will notice no difference. Not in my case!
Even with a 20" H-Bar shooting with your hand under the forearm in the front or back makes a difference of several inches at 200yds. If you leave your hand in the same place & always make sure to shoot with the same hold it works ok. But you soon learn esp. using legs that upward pressure causes the POI to be higher, a little at a hundred and it gets higher past that.
Take some sighter shots with your hand close to the mag from the bench, now take some with left hand curled up under back of stock with legs down or the front resting on bags, now you see.