AR Sponsor
Posted: 5/2/2006 4:50:34 PM EDT
| I have an RRA National Match A2 with a 20" Wilson air guage barrel. It's nice and it's new. I also have an RRA LAR-15 A4 with a 20" chrome-moly barrel. That's new too. What I really want is a National Match gun with the A4 flat top receiver. That way I can have both a scope setup and a carry handle option (for LEG matches). Should I take the barrel off the NM A2 and put it on the A4 or should I put the A4 upper on the NM A2? The options are similar but is there an advantage in going one way or the other? Or, should I sell off the NM A2 upper and buy a new NM A4 upper and sell the other A4? I am thinking that I will sell off the resulting A2 with Chrome-moly barrel. That said, is there any chance that the Chrome-moly barrel will shoot better than the Wilson barrel? |
The RR NM should be a 1 in 8" twist. Maybe the other one is a 1 in 9" twist. If so, you *definately* want the faster 1 in 8" twist on your highpower rifle. Shooting the 80's at 600 is just about a must. The 9" twist will only allow you up to about a 75 grain bullet and this will kill your score at 600. |
For *highpower* *full distance* shooting, the 1 in 9" twist is just about worthless. It limits you *very* much as to what bullet weights you can use. This will kill your score. |
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