I have been reloading for about a year now. 308,,3006,,40 s&w,,9mm,,35 rem. . Have not had any problems until now. Just started .223 for a rock river ar 15. I have lee .223 dies, Rcbs RC press. problem,,,,, my first ten rounds are getting in the chamber. I am not firing these, just running them through by hand.Seller at gun show said these were military cases. On the case is L C 7 8 . The bullets that I have came from the gun show in zip lock bags, don't know the brand name, but they are 55 grn. FMJ.. According to harnady info. the OAL should be 2.200, but when I seat to the cannelure 2.255 is the deepest I can go.I thought the bullet was too long and hanging up in the chamber, so I ran a few sized cases (empty) through and still hung up. the case at it's widest point should be .376 or less. Mine is .373, so should work. But it does not. I sized the brass a second time and got it down to.372-.371 which is what my new rem. ammo measures and they work now.
My lyman 49 manual says.376, but that will not fit.All my brass is trimmed to 1.751.
Questions are
1-Has anyone experienced this problem with military brass
2-should I be using military brass
3-Does military brass create more pressure due to thicker case walls,,If so, do I need stay away from any max loads.
4-Do I need to seat the bullet to the cannelure, or be more concerned with the OAL.
5-Is it normal to have to size twice
6-My AR is chambered for 556 so data for 223 is ok right
My lyman 49 manual says.376, but that will not fit.All my brass is trimmed to 1.751.
Questions are
1-Has anyone experienced this problem with military brass
2-should I be using military brass
3-Does military brass create more pressure due to thicker case walls,,If so, do I need stay away from any max loads.
4-Do I need to seat the bullet to the cannelure, or be more concerned with the OAL.
5-Is it normal to have to size twice
6-My AR is chambered for 556 so data for 223 is ok right