M-mmmm.... Mmmagnum...

id64

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Just for kicks. New hand roll for my hungry S&W
03-14-12_5226.jpg
 
Somehow it escapes me at the moment what those vertical lines in the bullet are called, but they are made to be crimped on that section of the bullet.

Edit: it's called Cannelure
 
Plated bullets aren't generally recommended for full power magnum loads, and are also generally not supposed to be heavily crimped as it can cut through the plating.
 
I guess it depends which bullet you use... I've been using Frontier bullets with 357 loads and strong crimp for years without any issue.

http://www.frontierbullets.co.za/cmj_bullets.html
CMJ handgun bullets for reloading are treated in the same way as FMJ bullets. With a few basic precautions such as avoiding over-crimping, the bullets can be shot at normal and high velocities without problem and with excellent accuracy.

But like any reloading... start low, work your way up... when in doubt, don't do it.
 
The crimp question popped into my mind right away as well. Even if they are plated, I'd seat to the cannelure and apply light to moderate crimp (depending on power load)
It's still a very cool and well done photo.

(E) :cool:
 
Shouldn't load plated bullets higher than 1200 fps per mfr's recommendations, so light to medium crimp should be fine. Just tuck in the case mouth a little bit into the cannelure to prevent bullet movement in recoil.

On the other hand, I had no apparent problems with jacket shedding using 125 grain Rainier Plated Hollow Points over 14 grains Blue Dot shot though my Marlin 1894 travelling at least 1,400 - 1500 fps. I used medium crimp and these Rainiers did not have a cannelure.

So perhaps the 1,200 fps figure is somewhat conservative, who knows?
 
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