Posted by Michael Ray on January 03, 2001 at 09:34:02:
I was curious what chronographs most of you are using to test your airguns. Can you also use the models you have for normal handguns?
Oehler is about the extent of my chrono market knowledge.
I know you can now buy an airgun-only one that you rubber band onto the barrel though I don't know why it can't be used for firearms.
I'd like something to test our .22 rifles and airguns. It would be a plus if it could do centerfire as well, but that is way down the list.
Michael
Posted by Dave Suitor on January 03, 2001 at 10:54:00:
The Chronys are very low priced (street prices anyway) and you
can get factory rebuilt units even cheaper. They offer a good
warranty/repair/replacement deal in case of an accidental hit
on the chrony. Also consider getting a lighting kit for inside
use.
There is a chronograph FAQ at http://www.recguns.com/VIIC13b.html
with probably way more than you care to know.
regards,
dms
Posted by TCooper on January 03, 2001 at 19:08:04:
I usually borrow a friend's SPEEDTACH made by Custom Chronograph Company. It will work with everything from an arrow going 140fps to high-power rifles. The unit has two light bulbs above. Never any problems.
The small airgun chrony you are referring to is a Combro CB625. I don't think it will work on a real firearm. The muzzle blast would send it into orbit. I think even a rimfire blast would damage it.
The Combro is designed for CO2 and pneumo guns because it is only held on with a rubber band.
From what I have heard the Combro is quite accurate.
Later,
Todd
Posted by geo. anderson on January 03, 2001 at 21:14:38:
I second the suggestion for the Chrony. When I bought mine, they had "demo" models once in a while and I waited for one. As I recall the basic Chrony cost me like $60-70. It was indistinguishable from new when it arrived. And, yes, you will need the light kit for indoor work.
Geo.
Posted by Andy Wai on January 04, 2001 at 15:04:37:
: I use a Combro cb625 for testing airguns they are relatively cheap to purchase and are great for checking on the health of your gun !
: They will measure up to 1350fps/50ft.lbs in .22 and 950fps/15ft.lbs in .177.
Muzzle energy on .22LR is more like 100ft.lbs. I think they probably mean .22 airguns only. I have a Combro as well. With all the hot stuff coming out of the muzzle, I won't use it on a firearm myself.
By the way, the Combro by itself without the computer link keeps very basic stats and you have to press the Reset key before every shoot. The latter is quite a hassle on a rifle as you need to reach all the way to the front--if you remember to do it at all. The small size is certainly convenient though.
Andy Wai
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