Hello, currently have a semi custom, remington 700, 21 inch shilen barrel. The barrel was fitted by a gunsmith, other than that I've done the rest of the work, gun comes in at 6lbs with scope
Currently running a close to max load of H414 using nosler 140 partitions. But have tried other powders and bullets (this thing wont shoot barnes for anything)
While I'm getting decent groups at 100 yds something like 1-2 (I was expecting more though out of my shilen match barrel though) I start extending my range and at 200-300 this thing becomes a shotgun, groups of 8 inches plus. This will happen with similar loads with other powders, but all near max.
This is off a 2 bag setup on a bench and can shoot nice small groups with my 300 win mag at these ranges all day.
Any thoughts? I'm starting to loose confidence in this gun, I wanted to take the gun on my sheep hunt this year but as its looking the slightly heavier 300 win is taking the trip so far.
I'm going to start from scratch with load developement and shoot it at 200 instead of 100 to see if lesser powder charges tightens things up. Also, the barrel is freefloated, I was going to put some upward pressure on barrel to see if that helps any as well.
Any other thoughts? Something I'm missing or not looking into?