My Barrel is a 26" I use nosler brass 52.7 gr H2O I built it on a long action so COAL is only limited to freebore, most bullets I can load to 2.890" that is .020" of lands.
RL26 is great for heavy bullets, my only question with pushing the 155 is if it would land in a node, Barrel Time would be close at the highest projected speed. If It could not be pushed to 2850-2875 with low SD and good groups than the 140-147 bullets are were I would stay. Funny the 130 ELD-Ms had to be pushed slower to get good groups making even the 143 ELD-X better for long range, but the 147 ELD-M using G-7 BC requires up 65.6" to reach 1760 yard and breaks over to subsonic at 1660 yards. That is according to my Shooter program, actual results not verified.
Yes the 155 is more suited to the larger case capacity 6.5 cartridges for sure.
RL26 is great for heavy bullets, my only question with pushing the 155 is if it would land in a node, Barrel Time would be close at the highest projected speed. If It could not be pushed to 2850-2875 with low SD and good groups than the 140-147 bullets are were I would stay. Funny the 130 ELD-Ms had to be pushed slower to get good groups making even the 143 ELD-X better for long range, but the 147 ELD-M using G-7 BC requires up 65.6" to reach 1760 yard and breaks over to subsonic at 1660 yards. That is according to my Shooter program, actual results not verified.
Yes the 155 is more suited to the larger case capacity 6.5 cartridges for sure.