Once again, Friends, never shoot someone else's reloads!

Maybe "overloaded" by an old reloader with an old manual.
Over time some powder manufacurers have become more conservative. (perhaps encouraged by their lawyers?)

Better science and engineering now too; they have the instrumentation to be aware of narrow pressure spikes they used to be happier not knowing about, or that bit people too infrequently to be sure of any need to back off.
 
Case head seperation tool - coat hanger
View attachment 430213

Hey wait a minute!
I found a steel rod just like that in my 95year old house this fall. It had been sitting on top of the foundation between joists for a long long time. Do you know what it’s for? I was thinking something to do with an old oil furnace or something. Mines about 5 feet long probably just under 1/2 inch diameter. Sorry for the off topic post.
 
Maybe "overloaded" by an old reloader with an old manual.
Over time some powder manufacurers have become more conservative. (perhaps encouraged by their lawyers?)

48gr is too much to blame on old manuals. 50 years ago, Lyman max for IMR3031 was 39gr with 180gr bullet. Somebody just screwed up - scale set wrong, or working from memory and transposed 48gr for 38gr. Human error.
 
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I have shot 100's of rounds of 303 Brit in both Lee Enfields and P14's (Enfield Model of 1914 for those who will blow a gasket) and I have experienced zero case head separations and zero incipient case head separations. What am I doing wrong?
 
I have shot 100's of rounds of 303 Brit in both Lee Enfields and P14's (Enfield Model of 1914 for those who will blow a gasket) and I have experienced zero case head separations and zero incipient case head separations. What am I doing wrong?

You're only shooting factory ammo, or not full-length sizing your brass multiple times.

Come on, Andy, get with the program! :dancingbanana:

Ted
 
I recently had a buddy give me some once fired Hornady 30'06 brass, factory 150gr Superformance SST he fired out of his Tikka, wanted to see if it could do better and he knew I reloaded. All the brass weighed under 165gr which gave me pause, most of my 308 based cases weight more then that, some considerably more, and none of my 30'06 based brass was anywhere near that light, most pushing 200gr from either side.
I sectioned a few cases and it had the thinnest web and case walls I have ever seen, literally no taper from the head to the neck in the walls. I told him I couldn't load those for him, brass was just too iffy for my liking.
I suspect that's how they get extra velocity from these cartridges, thin the brass for a few extra grains of powder, or maybe it was just a one off, only had 2 boxes which were the same lot number as a sample.
 
48 grains of IMR-3031 is 30-06 cartridge territory. Quite often with a bullet lighter than 174 grains as well.

Max load for a 125grn bullet in the .308Win. Definitely out of .303B territory. I forgot to check but 48grns should be about as much as you could get in the case.
 
Hey wait a minute!
I found a steel rod just like that in my 95year old house this fall. It had been sitting on top of the foundation between joists for a long long time. Do you know what it’s for? I was thinking something to do with an old oil furnace or something. Mines about 5 feet long probably just under 1/2 inch diameter. Sorry for the off topic post.

If it's 5 ft long it was probably a fire poker. They were common on the east coast when I was a boy for all the coal furnaces we had back then. Long so you didn't singe your eyebrows when you opened the door and poked the fire and the flames came out the door.
 
Some people just shouldn't be allowed near a loading press, sorry to say.

You mean filling to the case to the top with any unknown powder and pressing a bullet in doesn't work for you? LoL I'm sure it's been done, :/ The extra 30 seconds to mark all the details down on a box is too much effort for some.
 
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