Starline rifle brass

FrankenMauser said:
You seem to have a different opinion on the concept of a "maximum" powder charge.



In the words of Inigo Montoya, "You keep using that word. I do not think it means what you think it means."
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And the friend.

It's clear there's one factor and I've factor only, and it's mentioned in the previous post. Both him and his buddy stuffing too much powder in a case because it's what they've always done with no I'll affects, then are surprised when the above Max load makes it to where the bolt needs to be HAMMERED OPEN. There's extremely dangerous habits developed here. I'd rather burn an extra pound or 5 of powder working op to a safe max than have a bolt through my face. And if the bolt has to be hammered open, you are lucky as hell it didn't let loose and become a projectile through your buddies brain. There's old reloaders, then there's reloaders that take such risks. Not many that fit both.
Change case manufacturers, at a minimum, measure the h20 capacity. If it's close, still drop a percentage. If it's not, drop at least 10%
Change primers, drop the charge.
Different bullet, same weight, start over.

This is going to end with someone getting seriously hurt. I'm out.

Sent from my SM-G975U using Tapatalk
 
nhyrum said:
And the friend.

It's clear there's one factor and I've factor only, and it's mentioned in the previous post. Both him and his buddy stuffing too much powder in a case because it's what they've always done with no I'll affects, then are surprised when the above Max load makes it to where the bolt needs to be HAMMERED OPEN. There's extremely dangerous habits developed here. I'd rather burn an extra pound or 5 of powder working op to a safe max than have a bolt through my face. And if the bolt has to be hammered open, you are lucky as hell it didn't let loose and become a projectile through your buddies brain. There's old reloaders, then there's reloaders that take such risks. Not many that fit both.
Change case manufacturers, at a minimum, measure the h20 capacity. If it's close, still drop a percentage. If it's not, drop at least 10%
Change primers, drop the charge.
Different bullet, same weight, start over.

This is going to end with someone getting seriously hurt. I'm out.

Sent from my SM-G975U using Tapatalk
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A max load for a 243WSSM is not a max load for a 243WSSM AI. It is considered by most to be the starting load. Its not usually enough for a starting load. On the slower powders the max wssm load is not enough powder to be a safe starting load for the AI. Cold weather hang fires.
 
A max load for a 243WSSM is not a max load for a 243WSSM AI. It is considered by most to be the starting load. Its not usually enough for a starting load. On the slower powders the max wssm load is not enough powder to be a safe starting load for the AI. Cold weather hang fires.
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While I don't doubt this is true, I don't see how it is on topic for this thread, which is Starline rifle brass.
 
44 AMP said:
While I don't doubt this is true, I don't see how it is on topic for this thread, which is Starline rifle brass.
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I started the thread about a load that went massively over pressure when only changing from R.P. and Hornaday to Starline. Then a day or so later I was telling one of my friends about it. He told me it was odd because he almost blew his 243WSSM up using the same powder and we later determined same lot.
Even though I titled thread Starline Brass, it was really about an over pressure ptoblem observed using Starline brass. I now believe the problem was a combination of Starline brass, hot published load data, and a powder lot that seems wildly unforgiving.
 
I agree that this thread turned out to have nothing to do with Starline brass, which I personally have confidence in.
Starline may have slightly less case capacity. That is why whenever you change components you start testing at starting loads as standard procedure. Max loads in magnum cartridges is dicey. Don't blame the brass, because you did not work up your load.
I would order Starline 5.56 today, if it was available. And wish they made 300 WM.
 
Based on what you've said, I'd say the problem isn't Starline brass alone, but failure to work up to a safe level load with the Starline brass.

Complicated by using someone else's data (derived with different components in a different firearm) at face value, and possibly and "unforgiving" powder choice.
 
Only other thing that comes to mind after reading through this thread. Once I had some imperial sizing wax that didn't get wiped off the case. When the bullet was fired the brass couldn't hold to the chamber and resulted in the case trying to back out. End result was a blown primer and a good extractor mark like the op describes. Just a thought....
 
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