Svt 40 chewing up cases.

Lucite

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Edmonton Alberta
I have a 1941 SVT 40 made at kovrov and when I took it to the range I noticed that just about all the ejected cases had a fairly sizable dent in the side anyone know what the cause of this is and how to fix it?
 
You will get your best accuracy and your best reliability AND your best case-life if you have your gas set so that the empties just leap out of the rifle and land on the bench beside you.

Likely your rifle also is throwin the brass a fair distance: sure sign of too much gas being bled into the mechanism.

In other words, friend SVT1940 (above) is right, as general on these rifles.
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The dents sometimes come out of the brass when you shoot your reloads. Start with your gas setting low, and bring a mallet or 2x4 with you to open the action until you find the correct setting for the cartridge you are using.
 
I've found that even with the gas system low enough to just spit out the empties there is still a little dent in the brass. I don't worry about it, it comes right out upon firing and it's not like you need that extra little bit of case capacity. My loads are nowhere near compressed.
 
Rimmed cases tend to have shorter lifespans where reloading is concerned, and second, a lot of those older semi-auto battle rifles (Such as the Hakim) are already pretty merciless on brass to begin with.
 
diesel, if your rifle is spitting them that far, enough gas is coming into the mechanism to damage the rifle.... and you don't want that.

As far as dents in the cases are concerned, remember that when they go up the spout the next time and you fire them, the dents BLOW OUT harmlessly, the cartridge fires perfectly.... and the rifle then puts a NEW dent into the casing as it ejects the thing. Bad point here is that you just can't win. Good point is that you only have one dent at a time!

Same goes for the hammered-in fluting on brass from the fluted chamber. It irons out when you resize the brass, just leaves a bit of scorching so you can see that it was there. Next time you fire the cartridge, you get a whole new set of flutes on your brass.

Think about the ORDER in which things occur and you'll understand.

Most important of all: have fun!
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My brass ejects mostly front about 6 feet or so. I'm going to turn the gas down one and see if it makes the dents smaller. I tried using really lite loads but accuracy went down hill doing that. I did notice that the more heavy the bullet the better accuracy I got. Good enough with Hornady 165BTSP that I'm seriously considering taking her deer hunting this Nov. She shot better with the 165's than with the 150's. Got some 200gr Speer or Nosler floating around at home I may try.
 
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