I broke it, and now I'm sad

.....What seems dangerous often isn't. Real experience trumps assumptions and faulty theory....
Now we're bring President Trump into it. I think this thread has run its course...lol (I'm joking..serious).
 
Silver Hammer said:
its been awhile ... i may HAVE been confused ... regardless .... .308 is 7.82 in diameter. They are not the same


I couldnt remeber which was not interchangeable ... your not supposed to run .308 on 7.62. chamber. You can run 7.62 in .308. chamber


My numbers may have been off ... but the comment was that " they are the same " and they are not
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7.62x51 (7.62 NATO) and 308Win are identical twins. Not exactly the same, but close enough from a shooting and sizing point of view that you can't tell the difference.

The military case is usually heavier (but not always) and heavier cases should not be loaded with as much powder. I typically use 2 gr less powder than I do with 308 cases.

Both calibers shoot the same bullets.

Both run at about the same pressures - about 62,000 psi max.

Don't confuse 7.62x51 with 7.62x54. Totally different bullets and cases.

OP - When you switched to 7.62, did you check to see if the case was Berdan primed? (2 little flash holes?) Most of us have tried to prime one at least once and bent/broken the decapper.
 
I have had the same problem decapping crimped military brass. I went and bought a pin punch to fit the flash hole and did them all by hand before sizing..........royal PITA but I went through a 5 pack of pins in about 40 cases so I decided the punch was faster and cheaper in the long run. None were berden primed (although I have given up a few decapping pins to them over the years) just extra good crimps on DA and IVI stamped brass, also sealed with a black hard sealer.
Red locktite doesn't even phase a decapping pin, I know as I have used it a lot with 300 Wby cases and 300 WM. Works great for that one or two more firings of a over expanded primer pocket, hell I used a bunch in Africa and just left them on the ground.

As far as all this blather on .308 and .311 bullets, Ackley fired a 35 cal bullet down a 30 caliber bore with no noticeable or measurable increase in pressure. As long as the chamber and leade readily accept the oversize bullet and allow it to move before it engages the rifling, the bullet will swage to the bore diameter within the normal pressure curve of the cartridge. None of this is relevant as the 7.62X51 and the 308 Win both use .308" diameter bullets as has been pointed out several times here.

Silver Hammer..........despite what all the tacticool boys say the 308 Win is nothing more than the commercial name for the 7.62X51 NATO cartridge, period. The rounds are interchangeable in either military or commercial rifles. The loaded rounds may differ slightly in case thickness and web thickness and hardness but then so does commercial ammunition. It is safe to fire either military ammo in commercial rifles (I have done it by the thousands) and it is safe to fire commercial ammo in military rifles and has been done by the millions. The only exception may be some full auto military rifles may split shoulders on commercial ammo........I do not know this for a fact but have been told this. I don't happen to own any full auto military rifles.
 
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ok lets get back on track for a moment, I checked the brass, it is 7.62x51, i even measured with my calipers. Also upon my inspecting, it appears to be barden(as some of you's have mentioned). Needless to say, i have learned my lesson. Thank you Brianna65 for the offer, I'm going to see my local shop first, but if they dont have it i'm going to place an order with a non CGN sight, as i need some new supplies anyways.
 
I'm going to start calling it a .309 Winchester.

some of you really need to do some reading and find a mentor who has been loading for a long time before you kill yourselfs
 
FromTheNorth said:
ok lets get back on track for a moment, I checked the brass, it is 7.62x51, i even measured with my calipers. Also upon my inspecting, it appears to be barden(as some of you's have mentioned). Needless to say, i have learned my lesson. Thank you Brianna65 for the offer, I'm going to see my local shop first, but if they dont have it i'm going to place an order with a non CGN sight, as i need some new supplies anyways.
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10 bonus life points to FirearmsEnthusiast for being the first to call "Berdan!"

FirearmsEnthusiast said:
Was the Russian 7.62 possibly Berdan primed rather than Boxer primed? That will take out your decapping pin fast!
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Tune in next week for your chance to play!
 
Wholly cats! Not enough "good reading" threads like this.

Random points brought up, in no order:

- Decapping something Berdan primed in a standard boxer die will not help the pin. (kinda like dumping my bike...I'll never own up to it, but you sure get a sympathetic look for being honest)
- I might be able to get a .308/7.62x51 case to hold a bullet with a combination of my russian dies (the x39 came with both sized expander balls that may be screwed into the x54 die which may neck size a .308/7.62x51 case... I haven't tried. I do use my 6.5 Swede die on fire formed 6.5Jap because the proper dies sizes down too much.
-I have (and will) sling .311 projectiles through .308 bores. I have a chamber adapter that will allow .308/7.62x51 to sling 7.62x39 rounds (hardball) and my cast vary between .311 and .312 (soft ball).

My manuals warn that 7.62x51 cases may have a lower volume than .308, but for my purposes they are interchangeable.
 
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Beater said:
I'm going to start calling it a .309 Winchester.

some of you really need to do some reading and find a mentor who has been loading for a long time before you kill yourselfs
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You know there's a .307 Winchester? It's basically a rimmed version of the .308 Winchester and guess what? It uses a .308 bullet also.:p
 
Confusing thread and obviously I'm not alone.

This what I think OP meant in the first post:

He was sizing .308 Winchester brass, and then went on to try resizing some Russian made 7.62x51 brass....

or did he mean 7.62x54 brass? or 7.62x39? Have to think that OP knows 308 brass is not the same as 7.62x54 or...?

That's where the confusion is coming from, that and the 7.82 that somehow got thrown into the mix.... LOL
 
jethunter said:
...That's where the confusion is coming from, that and the 7.82 that somehow got thrown into the mix.... LOL
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Yeah, that's where some of the confusion is coming from; but there are a few members who brought along plenty of their own to spice up the mix...:)
 
jethunter said:
Confusing thread and obviously I'm not alone.

This what I think OP meant in the first post:

He was sizing .308 Winchester brass, and then went on to try resizing some Russian made 7.62x51 brass....

or did he mean 7.62x54 brass? or 7.62x39? Have to think that OP knows 308 brass is not the same as 7.62x54 or...?

That's where the confusion is coming from, that and the 7.82 that somehow got thrown into the mix.... LOL
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you nailed it on the first one...but i will admit, this turned mildly entertaining
 
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