.357 Snubby Chono Results: Corbon 140gr. JHP's vs. Remington 158gr. SJHP

[flip180]

Went out to the range today to try out some new ammo for my 2-1/2 inch M66. The new ammo that I wanted to chrono was some Remington 158gr. SJHP's. I also brought out some of the 140gr. Corbon JHP's that I had lying around to compair the Reminton's against. I had chrono'd the Corbons before and noticed that the velocities were inconsistent so, I wanted to see if that was normal for them to have such huge extreame spreads. The numbers were obtained using a ten shot string approx. ten feet from the barrel using a tripod mounted Pro-Chrono digital chronograph. Anyway, here are the results.

Remington 158gr. SJHP's

Hi=1216 fps. Lo=1175 fps. Avg=1198 fps. Es=41 fps. Sd=13 fps.

Corbon 140gr. JHP's

Hi=1325 Fps. Lo=1178 fps. Avg=1242 fps. Es=147 fps. Sd=46 fps.

Recoil as could be expected was stout with both rounds with the Remmies a little stronger. I like the consistency with the Remington was alot better than with the Corbons. Needless to say the snubby is loaded up with the Remingtons. I don't mind the the loss in just 44 fps (avg.) for the heavier round.

Flip

 

[Lone Star]

That Remington load is good; I used to shoot it in my 6" .357's. You can get the Winchester Silvertip in 145 grain weight and Remington has loaded their SJHP in 140 grain. Hornady has good 140 grain .357 JHP's.

I suspect that the 140 grain will give the highest velocity in a short .357 in a round not too abusive to the guns or the shooters.

LS

 

[Lone Star]

That Remington load is good; I used to shoot it in my 6" .357's. You can get the Winchester Silvertip in 145 grain weight and Remington has loaded their SJHP in 140 grain. Hornady has good 140 grain .357 JHP's.

I suspect that the 140 grain will give the highest velocity in a short .357 in a round not too abusive to the guns or the shooters.

LS

 

[HankB]

Some years ago, there were a number of stories floating around about poor QC at CorBon. Looking at the inconsistent velocities you chronographed, it looks like they haven't resolved all their quality issues yet.

 

[nitesite]

I bought two 20-rd boxes of Cor-Bon 140-gr .357s as my home defense load in a Model 28-2. Thought it would be "the good stuff". Fired half a box to check POA/POI, and then loaded my Patrolman.

That was last year.

Last month I decided to shoot up that cylinder full (and the rest of the first box) before breaking out the 2nd box of 20. One of the rounds in the cylinder never would fire, no matter how many strikes on the primers out of TWO revolvers...

I'll never buy Cor-Bon for protection purposes ever again.

 

[bpisler]

Just last month i bought a box of the 140gr corbons.Half of them had a large muzzle flash and the other half did not.Recoil and noise seemed greater on the ones with more flash.I expected them to be more accurate than they were,3-4" groups at 15 yards doesn't cut it.

 

[mec]

It's been a couple of years, but I was getting consistent results from Corbon back then. I still have some of that batch of ammunition and use it for carrry loads.

I have no idea how the current ammunition performs.