Chrono'ed some loads today.....

[Tony Mig]

Broke out the chronograph at the range today, and tested two of my .357 Magnum loads against some Winchester (white Box) 125 Gr. JSP's

I averaged out 6 rounds from each batch, the Winchester's were the hotter/faster load, but also showed a wider range of vaeied speeds proving to me that my reloads are more consistent than factory loads.
All loads fired from my 6" S&W 686......

Whinchester 125 Gr. JSP = 1450 fps

7.9 Grs. of Herco / 150 Gr. LSWC = 1284 fps

13.5 Grs. of 2400 / 150 Gr. LSWC = 1279 fps

I wish I knew they were going to bring out this device, or I would have brought and tested my .38 Spl's (4.1 Grs. of Hi Skor-700-X / 158 Gr. RNFP) against some factory Rem-UMC, and also my .38 Wadcutter target loads (2.8 Grs. of Bullseye / 148 Gr. LWC)

This was the first time I got the oppertunity to test any of my reloads with a chrono, and it was both fun and interesting to actually see how fast they move.

 

[deciple-of-keith]

Tony. I have promised myself a chrono for some time what brand are you using?

 

[griz]

Just make sure you aren't comparing apples to oranges. I've been doing a lot of chrono'ing lately to check powder position sensitivity in 38 special. At first I thought some powders were pretty terrible, but it turns out I was comparing mild light bullet loads to heavy bullet loads with better suited slower powders. So it wasn't the powders fault that the light loads had greater spreads than the others, it was the nature of loading a realitively large case with fast powders.

Anyway, enjoy your new chrono. It will teach you a lot.