My Grendel build in process

[Nick]

Very nice, I think you made a good choice going down to 18"...

I think so. For hunting purposes it was a must. I was a bit nervous about going to 18 with a 1:9 twist but I was very pleased with this 100 yard grouping, hoping to stretch it out soon and see what I get at 300 or so.

Anyone familiar with this twist on an 18"? Reason I ask is because I'm going to be taking a long range shooting training course soon and would this be able to shoot to 1000 or would I be better off learning long distance shooting with something else?