Post by pxranger on Mar 26, 2012 21:32:00 GMT -8
just picked up the latest Hornady loading book for the Grendel data. turns out they used a 14.5 inch barrel for the data then excluded the 140 grain bullets from the book because the thought the velocity was to low for reliable expansion!
What percentage of shooters are going to be using a SBR with the Grendel? most people will have a 16" barrel or longer to avoid the idiotic $200 tax stamp for a SBR for one reason, and to extract all the potential from the cartridge for another.
just so I can get a reasonable idea of velocity with a 24" till I can chrono the loads, whats the velocity gain per inch of barrel? I am estimating 20 fps per inch, probably more for those first few inch's above 14.5 inch barrels.
What percentage of shooters are going to be using a SBR with the Grendel? most people will have a 16" barrel or longer to avoid the idiotic $200 tax stamp for a SBR for one reason, and to extract all the potential from the cartridge for another.
just so I can get a reasonable idea of velocity with a 24" till I can chrono the loads, whats the velocity gain per inch of barrel? I am estimating 20 fps per inch, probably more for those first few inch's above 14.5 inch barrels.