02-16-2020, 03:50 PM
Those bools took a lot of work when there was very little data out there for the Grendel. Now they stto own, ill have a lot of great data and are highly recommended. I would like to see some updates to them but not sure it will happen.
Nosler has data for the 129gr LRAB online and in their latest manual. The 142gr is long enough that velocity suffers from the longer bullet and seating depth limitations. Might be worth it for some but the 129gr does work well with the GRR.
As to G1 or G7, the G1 ballistic model is based on a flat based bullet and the G7 model is a boat tail bullet model. If both are avauable use the G1 for flat based and G7 for boattail bullets for best results.
Nosler has data for the 129gr LRAB online and in their latest manual. The 142gr is long enough that velocity suffers from the longer bullet and seating depth limitations. Might be worth it for some but the 129gr does work well with the GRR.
As to G1 or G7, the G1 ballistic model is based on a flat based bullet and the G7 model is a boat tail bullet model. If both are avauable use the G1 for flat based and G7 for boattail bullets for best results.