I don't know too much about this stuff, but I wonder if it's the bullet. IIRC, the initial marketing was based on the 90 grain SMK. The Valkyrie's long range performance is dependent on a heavy, VLD design that, as I understand it, is very sensitive to seating depth. How do you get consistent accuracy from a host of factory barrels with such a bullet? Tuning the load to a specific barrel might produce different results.
Then look at the Hornady 6mm 105 grain BTHP. Pretty standard fare as bullet technology goes. A 'match' bullet with a tangent ogive. Anecdotally, the 6mm ARC groups I've seen from this load are generally better than those from the 108 ELDM load. Why? Same thing; target versus the VLD bullet.
This is all just musings from a guy who knows just enough to get himself into trouble. Am I right?
Edit: I also think there might have been issues around twist rate. Some barrels came with 7.5. Sierra calls for 1:7 if over 2700fps and 1:6.5 if under. I think the Valkyrie with the 90gr SMK was right on the ragged edge.
Then look at the Hornady 6mm 105 grain BTHP. Pretty standard fare as bullet technology goes. A 'match' bullet with a tangent ogive. Anecdotally, the 6mm ARC groups I've seen from this load are generally better than those from the 108 ELDM load. Why? Same thing; target versus the VLD bullet.
This is all just musings from a guy who knows just enough to get himself into trouble. Am I right?
Edit: I also think there might have been issues around twist rate. Some barrels came with 7.5. Sierra calls for 1:7 if over 2700fps and 1:6.5 if under. I think the Valkyrie with the 90gr SMK was right on the ragged edge.
Paul Peloquin
Did government credibility die of Covid or with Covid?
Did government credibility die of Covid or with Covid?