Home Forums Hunting & Shooting Ask The Gunwriters Magneto speed vs lab radar

Geez, makes me wanna go shoot.

What Buford Boone posted: Unless you have a second confirmation of the velocity, you're not sure. An Oehler 35P does exactly that.

Which is why I still use an Oehler 35P, and why Bryan Litz uses TWO Labradars to make sure of his results.

That's a nice setup!

Thanks,340boy. For a short bench, Reloader's set up is better.

I like the tailgate bench for my Z-71, wasn't that hard to build..

It's easier to set up than my conventional three legged bench.

DF

I'm without a chronograph these days.Last time I bought one, around 2003-you didn't have nearly as many options. Nice to see some new ways(though with some limitations, of course).

Just yesterday, I did a "one after the next" text with my 24" 22LR with Lapua Center-X ammo. My LR sometimes has issues picking up velocities when the "trigger" mode is set; nothing new there. I did a "trigger vs radar" test and at 75F, 10 shots each, the trigger averaged 1041 fps and the radar averaged 1042 fps. Surprising to me since the good folks at LR say the radar may not pickup the bullet until about 5' downrange; equalling a slower velocity. Seems not this time. I'm very happy.

Alan

Folks ,

I've conversed with Buford Boone concerning my 35P . He has a dedicated range on his property & is very knowledgeable in ballistics . He worked for the government in the capacity of firearms testing and ballistics .
Do yourselves a favor and take advantage of his many years of professional experience . Listen and pay attention to his comments and remarks .
Hopefully we may all learn a little .
Soup

Magneto Speed for me. I develop a load without the chrono. Load three rounds in .3 grain increments. Shoot groups with each increment and stop with the slightest pressure sign. Study the groups, hopefully/usually there's a clear range of 3 to 4 increments where the groups stayed tight with the same POI. Choose the middle. Slap on a Magneto Speed and fire 5 rounds into the dirt. Get velocity and verify reasonable ES. Fire a 10 shot group, because I like the warm fuzzy it gives. Done.

Slap on a Magneto Speed and fire 5 rounds into the dirt. Get velocity and verify reasonable ES.

How does a small sampling of 5 shots give you a verified and reasonable velocity and ES? And how do you know just what change those .3 increments actually did for you? I use a 35P for every shot so I don’t guess.

I don't guess either, I just don't need to know. If 5 shots gives me a single digit ES I'm good.

Thanks for the kind words, Soup.

The main thing I try to communicate is that all velocity measurement methods have their challenges. The only thing worse than getting a bad measurement is not knowing you got a bad measurement.

The big problem with taking two measurements is having them disagree and not being able to figure out what caused it or which one is correct.

The world would be a much simpler place if the manufacturers would just make their stuff perfect.