suggestions on fixing 7.62x39

[mstake]

i have a rossi 7.62x39 and i am having FTF. I have allready checked barrel fit, shaved the hammer, reduced the return spring on the firing pin, polished the firing pin, even neck sized to take up as much head space as i can. any ideals?

[OBXPilgrim]

How far does the firing pin stick out?

[mechanic]

The receiver on these guns is very similar to H&R, with some parts being almost the same.  Check the FAQ's for ideas, but if the lifter is good and the pin protrudes far enough, the only other  thing to check is the hammer spring....that is if it previously shot well then began this.
 
If it never shot well and had FTF's, it still would go back to the basics listed in the FAQ's.
 
My nephew's Rossi had a broken firing pin, I could not get one so I had to make one from some drill rod....
 
Ben

[mstake]

Mechanic do you know if the hammer spring on the handi and the rossi is about the same? i have allready went though most of the handi check items. i am woundering if the firing pin is not hitting with enough speed and its pushing more then striking. i seen somewhere that the speed of the firing pin is just as important.

[yukondog]

What type of primers are you using?

[mstake]

i use winchester and cci br-2 in my reloads

[mechanic]

You might try pm'ing Larry Trotter on this forum.  He has experience with those more than I.  I've had the one apart, and really didn't do a direct comparison while I had it down.  I did notice obvious similarity of some parts.
 
Ben

[cwlongshot]

Hello,
 This caliber can have problems with FTF. MOSTLY from surplus ammo with hard military designed primers.

Good heavy springs and proper firing pin protrusions can overcome this problem.

I just went thru a 45-70 for a friend with FTF issues but he was getting light primer hits. http://www.gboreloaded.com/forums/index.php/topic,273358.0.html  This will give you some guidelines as will our FAQ's.

For proper head space on a single shot, First, take the extractor out of the picture. The case should slide into the chamber and be flush to ever so slightly below flush in the chamber.

Good luck,
 CW