emptybrass
Member
- Joined
- Jan 2, 2013
- Messages
- 105
New ProChrono Digital (my first chrono) at an indoor range.
Here's the prep work:
After studying the use of chrono's, especially inside, I set my new chrono up in my garage using my BB gun as the test firearm. I purchased two 4 bulb LED battery powdered strip lights and taped them to the underside of the diffusers so that the light flooded the chrono sensors. I loaded the provided software on laptop and tested with BB gun and all worked well. I purchased a tripod dolly and made a positioning handle from a telescoping pool tool handle so I could position the chrono in my lane without the range having to go cold (this made the range management very happy).
Setup at the range:
I used a handgun rest on the lane bench for accuracy (didn't want to shoot the chrono on first date) and hung target at chrono level and ran it down to the 12 ft mark. I positioned chrono in from of target and cranked up laptop and got everything working.
What happened:
As soon as I got the chrono on line, it began registering rounds fired from two to four lanes away from me. It registered a reading for each round fired. The two range officers, both long time reloaders and chrono users, said they had never seen anything like it. Well great! It would register my rounds but was registering a couple of other shooters rounds at the same time. Most of the false reads were high but the still cluttered my sampling. So I decided to go ahead and shoot my test rounds and just visually look at the display so the whole trip would not be a waste.
What happened then:
I have loaded 45ACP rounds with Hornady 45160HP-XTP 230 gr rounds to an OAL of 1.230 and using Unique powder, I made test loads per the Hornady 8th edition of 5.2, 5.6, 5.9 and 6.2 grains. I did not load any at the max of 6.2 grains. Being still only a year and a half into reloading, I weight each powder load with a Lyman Gen 6 Digital dispensing scale and double check every five loads on a RCBS 10-10 beam scale. The 5.2 gr rounds where all used trying to get false reads cleared out of chrono. The 5.6 and 5.9 rounds seemed hot and registered on the chrono around 1240 fps. I fired one round of factory Winchester Personal Protection 230 gr hollow point ans it read about the same. These numbers are way high of the 800 fps shown in the manual. At this point I stopped and decided not to fire the 6.2 grain test rounds.
Questions:
as you can see, I have too many questions to ask, so I'll just solicit your ideas and suggestions to help me resolve my multiple problems with the chrono.
Thanks for you time, and let me know if more info is needed.
EDIT: I will try to contact Chrono MFG tomorrow as well.
Here's the prep work:
After studying the use of chrono's, especially inside, I set my new chrono up in my garage using my BB gun as the test firearm. I purchased two 4 bulb LED battery powdered strip lights and taped them to the underside of the diffusers so that the light flooded the chrono sensors. I loaded the provided software on laptop and tested with BB gun and all worked well. I purchased a tripod dolly and made a positioning handle from a telescoping pool tool handle so I could position the chrono in my lane without the range having to go cold (this made the range management very happy).
Setup at the range:
I used a handgun rest on the lane bench for accuracy (didn't want to shoot the chrono on first date) and hung target at chrono level and ran it down to the 12 ft mark. I positioned chrono in from of target and cranked up laptop and got everything working.
What happened:
As soon as I got the chrono on line, it began registering rounds fired from two to four lanes away from me. It registered a reading for each round fired. The two range officers, both long time reloaders and chrono users, said they had never seen anything like it. Well great! It would register my rounds but was registering a couple of other shooters rounds at the same time. Most of the false reads were high but the still cluttered my sampling. So I decided to go ahead and shoot my test rounds and just visually look at the display so the whole trip would not be a waste.
What happened then:
I have loaded 45ACP rounds with Hornady 45160HP-XTP 230 gr rounds to an OAL of 1.230 and using Unique powder, I made test loads per the Hornady 8th edition of 5.2, 5.6, 5.9 and 6.2 grains. I did not load any at the max of 6.2 grains. Being still only a year and a half into reloading, I weight each powder load with a Lyman Gen 6 Digital dispensing scale and double check every five loads on a RCBS 10-10 beam scale. The 5.2 gr rounds where all used trying to get false reads cleared out of chrono. The 5.6 and 5.9 rounds seemed hot and registered on the chrono around 1240 fps. I fired one round of factory Winchester Personal Protection 230 gr hollow point ans it read about the same. These numbers are way high of the 800 fps shown in the manual. At this point I stopped and decided not to fire the 6.2 grain test rounds.
Questions:
as you can see, I have too many questions to ask, so I'll just solicit your ideas and suggestions to help me resolve my multiple problems with the chrono.
Thanks for you time, and let me know if more info is needed.
EDIT: I will try to contact Chrono MFG tomorrow as well.
