SPR ISH upper build

[Take2]

I already have a decent light 16 inch rifle. I want something longer I'm still not sold on the 18 vs 20 inch length.

[Koshinn]

I already have a decent light 16 inch rifle. I want something longer I'm still not sold on the 18 vs 20 inch length.

Well a 16" can reach out to 500. There are only incremental gains from 16 to 18 and even less incremental gains from 18 to 20.

If you're building a target shooting rifle whose only use is while on the bench or prone at a range... get the longest and heaviest barrel you can get.

If you only need 1.5-2" MOA precision, I'd go back to a lighter weight 16" barrel, especially if you're planning on actually carrying it places.

[Take2]

Well a 16" can reach out to 500. There are only incremental gains from 16 to 18 and even less incremental gains from 18 to 20.

If you're building a target shooting rifle whose only use is while on the bench or prone at a range... get the longest and heaviest barrel you can get.

If you only need 1.5-2" MOA precision, I'd go back to a lighter weight 16" barrel, especially if you're planning on actually carrying it places.

I started ordering parts today excited to start getting things put together. I'm going with the 20inch mobility isn't a concern of mine with this upper. And I want the best accuracy and ballistics that I can get at 500+ yards. I haven't bought sights, optics, rail system, or optics mounts yet.

[Junkie]

You may want to go with a non-threaded barrel, it can often help a little with regards to accuracy. Probably not a problem if you're not looking to get every last mm off your group though.