Large pistol primers in 308 reloads

steelgray

steelgray

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I'm sure this has been discussed before, but given the shortage of LRPs, what are the practical problems (if any) associated with using LPPs in normal 308 win loads. Is there a greater risk of slam fires in a semi because the primer cups may not be as hard? Is one better-off avoiding ball powders because they tend to need a hotter primer to start the burn? I wouldn't care much if the only differences is some tiny difference in accuracy.

Any advice will be welcome. My supply of LPPs is greater than my supply of LRPs and I only have one handgun that uses LPPs
 
They are shorter, thinner and much softer. The negatives would be pierced/blown cups, possibly slam fires and light strikes with certain guns. There isn't a LPP out there that is going to survive 60,000psi. I used some for fire forming and the aggressive strike from the firing pin was piercing them, I doubt being able to move so much helped either...
 
Even if they fit, they are soft. When the primer gets pierced there is a little tiny metal confetti moving through your action and your bolt. Sometimes it goes inside your bolt next to the firing pin and prevents any further shooting.
 
fiddler said:
Even if they fit, they are soft. When the primer gets pierced there is a little tiny metal confetti moving through your action and your bolt. Sometimes it goes inside your bolt next to the firing pin and prevents any further shooting.
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It almost certainly will erode the firing pin and bolt face as well.
 
I don't know where some of you get your experience?

Certainly not from doing any personal experimentation.

I have used "magnum" large pistol primers in several different rifle cartridges, including the 308 Winchester on numerous occaisions and never had an issue.

Not even light cratering with near max loads.

I've used them in 243Win, 6mm Rem, 6.5x55, 30-30 Win, 30-06, 8x57 and 7x57 as well as others, with nary an issue.

I'm not going on about a few dozen rounds of each, but several hundred in each of the above cartridges.
 
second hand story of a 308 browning blr loaded with a pistol primer by mistake... required parts and gunsmithing a blr is horrid...I dont consider aa 308 to have huge pressure...just don't do it...loose an eye maybe???
 
Campro LP magnum would work. I use them only for my sks. If your doing 6.5 or 308, they will also work without piercing. Although I only did 2 full power test loads each. You can place a sheet of paper in between the primer and brass with a hole cut out to make up the difference in diameter if your really worried. Other brands, I can't vouch for.
 
fiddler said:
Even if they fit, they are soft. When the primer gets pierced there is a little tiny metal confetti moving through your action and your bolt. Sometimes it goes inside your bolt next to the firing pin and prevents any further shooting.
Click to expand...

B said:
It almost certainly will erode the firing pin and bolt face as well.
Click to expand...

Not to mention the possibility of 60,000 psi of metal fragments eroding the shooter's face and probably eye.
 
I Dont Care About You said:
Sooooo ..... 9mm in a rifle makes, 9mm a rifle round?
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Haha, with the advent of PC rifles the 9mm is seen a lot more in rifles these days and so has the 44-40.

But as you probably know the 44-40 cartridges were designed for Large Pistol Primers and the 9mm was designed for Small Pistol Primers and the post I responded to said no pistol primers should be used in rifles “period” which was false…
 
bush1 said:
Haha, with the advent of PC rifles the 9mm is seen a lot more in rifles these days and so has the 44-40.

But as you probably know the 44-40 cartridges were designed for Large Pistol Primers and the 9mm was designed for Small Pistol Primers and the post I responded to said no pistol primers should be used in rifles “period” which was false…
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No, the thread was talking about pistol primers in rifle cartridges. A pistol caliber rifle, does not make the cartridge a rifle cartridge. But you knew that.

44-40 is a pistol cartridge and its use in rifles doesn't change that.
 
I Dont Care About You said:
No, the thread was talking about pistol primers in rifle cartridges. A pistol caliber rifle, does not make the cartridge a rifle cartridge. But you knew that.

44-40 is a pistol cartridge and its use in rifles doesn't change that.
Click to expand...

Now you’re arguing semantics. I certainly agree that a pistol caliber rifle doesn’t make a cartridge a rifle cartridge. No argument there. I objected to the poster that said “ They are not made for rifle use. Period.” which was a false statement…
 
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