black powder through chronograph?

[wyobohunter]

Anybody ever fire thier BP rifle/s through a chrony? I'm especially interested in data for .50 vs .54 caliber. I'd also like to see details (bbl length, flint or cap lock, powder type and charge, projectile type and weight). Thanks

[kwhi43]

I did my .45 Flintlock. It has a 30 inch barrel and 90 grs Goex FF and a .454
round ball with a .022 thick Teflon patch which is my target load, showed
2000 fps. 80 grs went 1925.

[mykeal]

I suggest getting a copy of Lyman's Black Powder Handbook; it contains a great deal of such information.

[fastforty]

Yeah, I did it, once. .32 & .50 rifle, .36 & .44 pistol (got the data around here somewhere), all was round balls from minimum to maximum loads, except several types/weights of bullets in the .50 caliber rifle. I still can't get the sticky crud off of my chronograph :(

[Noz]

If you try it you must move the chrony down range a bit. The smoke and debris from a black powder round will give erroneous readings. In addition, as stated above, making a mess of your chrony.

[B.L.E.]

Even with smokeless powders, the chrony will give you false readings if it is too close to the muzzle. even a person shooting next to you will make the chrony read something if it is too close.

[Mark whiz]

I Chrono'd both my muzzleloading rifle and cap & ball revolver with no problem. I have a Shooting Chrony Beta and when I used it for black powder, I placed a piece of cardboard in front of the device's body, so the only thing exposed was the rods.... and they cleaned up just fine afterwards with a little hot soap & water and elbow grease.

[Noz]

What did you do about the dent?
Mine has a big dent just in front of the rear window. Still works
Something about shooting a Magnum Pistol(in my case, 41 Mag) with full house loads and a scope that does bad things to Chronys.

[magnumwideglide]

54 Renegade with 120 gr Pyrodex, 240 gr bullet in sabot 1875 fps. 50 cal Hawken with 100gr Pyro with 240 gr Hornady XTP 1750.