07yzryder Posted June 8, 2019 Share Posted June 8, 2019 I'm loading for 9mm minor and was hoping someone has done some testing. I only have a magnetospeed and am loading to about 5 over minor pf in the summer here in Vegas. My loads are pretty consistent but I don't have access to a traditional Chrono. What the velocity loss at 10 feet where a Chrono at a match would be? I currently only shoot at local matches so I'm not to worried right now but as I progress I'd like to shoot bigger matches Thanks Robert Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted June 9, 2019 Share Posted June 9, 2019 Difference shouldn't be too large - but, you should by a chrono. They really come in handy. Link to comment Share on other sites More sharing options...
07yzryder Posted June 9, 2019 Author Share Posted June 9, 2019 4 minutes ago, Hi-Power Jack said: Difference shouldn't be too large - but, you should by a chrono. They really come in handy. I have a Chrono, just don't think I'm accurate enough to place it 10 feet downrange and not shoot it while trying to keep the bullet .25 over it hahahah. I got rid of my traditional Chrono when I got the magneto speed cause most my shooting was rfle and it did all I need. Now stupid uspsa wants it at 10 feet or so Link to comment Share on other sites More sharing options...
RAP Posted June 9, 2019 Share Posted June 9, 2019 A couple years ago I did a test comparing magneto speed to my traditional chronograph. The velocity difference was somewhere in the neighborhood of 10-15 feet difference. Nothing I worried about. Link to comment Share on other sites More sharing options...
Guy Neill Posted June 9, 2019 Share Posted June 9, 2019 While I have not used a Magnetospped, I expect the velocity will be a bit higher due to the measurement being closer top the muzzle. Chronograph measurement is ten yards or so from the muzzle. Not a lot, but a difference. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted June 9, 2019 Share Posted June 9, 2019 10 hours ago, 07yzryder said: I'm not accurate enough to place it 10 feet downrange and not shoot it Many of us will readily admit that we have done exactly your worst nightmare - I've hit my Chrony twice. But, I've learned and moved on. Now, I put target at 15 feet - fire couple shots to make sure I know where the bullet is going, and then place the screens few feet behind that - fire thru the screens into the target I already know I can hit. Link to comment Share on other sites More sharing options...
Steve RA Posted June 9, 2019 Share Posted June 9, 2019 Change "behind" to "in front" and it will be easier to follow. Of course, if you walk around behind the entire setup, then it make sense. Link to comment Share on other sites More sharing options...
Hi-Power Jack Posted June 9, 2019 Share Posted June 9, 2019 Steve, I've heard you Texans like to "walk around behind" ….. Link to comment Share on other sites More sharing options...
Joedirt199 Posted June 10, 2019 Share Posted June 10, 2019 Saw a guy place his chrony behind a plate rack to test loads. Makes it real hard to shoot it. He had the info sent to his phone. Link to comment Share on other sites More sharing options...
Jeremyc_1999 Posted June 11, 2019 Share Posted June 11, 2019 It all depends on the brand of chronograph. Your magnetospeed is going to be much more accurate than any other chronograph other than a lab radar. I have seen cheap traditional chronographs be over 50 fps different than my Labrador and magnetospeed Link to comment Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now