dbarnhart
Member
Yesterday I was reading a bit about chronographs and a question occurred to me: What do I compare the chronograph's readings to?
I'm sitting here with the Speer #14 Reloading Manual in front of me looking at the .223 Remington reloading data. I don't see any data here about the kind of gun used to obtain the data. I have a carbine with a 16-inch barrel. Though I can'r find anything that tells me so, I'm betting the listed muzzle velocities were produced with a longer barrel. I'm pretty sure that I'll not see the muzzle velocities listed.
How do you start with the muzzle velocities listed in the reloading manual and determine what they *should be* for your rifle?
I'm sitting here with the Speer #14 Reloading Manual in front of me looking at the .223 Remington reloading data. I don't see any data here about the kind of gun used to obtain the data. I have a carbine with a 16-inch barrel. Though I can'r find anything that tells me so, I'm betting the listed muzzle velocities were produced with a longer barrel. I'm pretty sure that I'll not see the muzzle velocities listed.
How do you start with the muzzle velocities listed in the reloading manual and determine what they *should be* for your rifle?