That can't be right

[Maverick44]

You guys ever look at a load in a reloading manual and come to the conclusion that "that can't be right"? I'm working up a load for my .223 and Lyman's manual lists the max load for my bullet to be 27.5gr of IMR4320, and indicates that it's a compressed load. Considering that I cant even get that much powder in the case without if overflowing, I'd say that would be right. lol.

I checked with Hodgdon's online database and their max load for that bullet is 26.1gr, and it's still a compressed load. The listed velocity is more or less the same as Lyman's max load.

Not sure what Lyman was thinking with that one. Even if it's safe, it's a PITA to try to load. You can forget about using a progressive press.

 

[vmax]

I'd forget it and go with a host of other powders that may not be compressed
CFE 223, XBR 8208, 4198..to name a few

 

[Sam7sf]

Been forever for me but I always used win 748

 

[EZ-E]

You guys ever look at a load in a reloading manual and come to the conclusion that "that can't be right"? I'm working up a load for my .223 and Lyman's manual lists the max load for my bullet to be 27.5gr of IMR4320, and indicates that it's a compressed load. Considering that I cant even get that much powder in the case without if overflowing, I'd say that would be right. lol.

I checked with Hodgdon's online database and their max load for that bullet is 26.1gr, and it's still a compressed load. The listed velocity is more or less the same as Lyman's max load.

Not sure what Lyman was thinking with that one. Even if it's safe, it's a PITA to try to load. You can forget about using a progressive press.

Thanks for posting that info. I'm a newb & might of blown myself up because I have a Lyman book also. It's the newest 50th edition...not sure what version you have.

I've found dealing with manuals the manufacturer sometimes copy & paste info ...so sometimes it's not correct.

 

[Texasjack]

The density of a powder may change and not get caught by the publisher. I tend to use the powder manufacturer's recommended data, as it's the most up to date.

4320 is not a great powder for .223, IMHO. 748 is the 'original' stuff, but I never liked the results. I get best results with Varget or CFE-223. CFE leaves less copper fouling, but seems a bit sootier than Varget.

 

[Maverick44]

I'm not too concerned about the compression. It was just odd that they listed a charge so high that it was literally overflowing the case. The 26.1gr max charge that Hodgdon recommends is far more reasonable.

I've always had good luck with IMR 4320 and have quite a bit of it laying around. I've gotten sub MOA groups out of my AR with it before. I tried CFE 223 when it first came out and I liked it. Never got around to getting more of it for some reason. It's cheaper than both IMR 4320 and Varget, so I might pick up a jug of it next time I order powder.

 

[Dawico]

I was testing a mid range load and having the case full to the top recently. I started with a higher charge and worked my way down and started with the lightest brass and worked my way up. The cases just kept getting fuller and fuller until it started spilling out the top.

I had never had that issue before.

The volume of different brass cases comes in to play sometimes too.

 

[benenglish]

Who's using long drop tubes? Is it making any difference?

 

[Toolfreak]

24 to 25 grains of H4895 with 55 grain hornady bullets really shoots well in my AR!!!!

 

[deemus]

I find listings that make me double check with other books fairly regularly. I have four or five books and almost always look at them all before deciding on what my load will be.

 

[just country]

You guys ever look at a load in a reloading manual and come to the conclusion that "that can't be right"? I'm working up a load for my .223 and Lyman's manual lists the max load for my bullet to be 27.5gr of IMR4320, and indicates that it's a compressed load. Considering that I cant even get that much powder in the case without if overflowing, I'd say that would be right. lol.

I checked with Hodgdon's online database and their max load for that bullet is 26.1gr, and it's still a compressed load. The listed velocity is more or less the same as Lyman's max load.

Not sure what Lyman was thinking with that one. Even if it's safe, it's a PITA to try to load. You can forget about using a progressive press.

I use this load in my 223 SPS Rem. justme gbot tum

 

[RangerDoc275]

I find listings that make me double check with other books fairly regularly. I have four or five books and almost always look at them all before deciding on what my load will be.

This is simply the best advice anyone can offer.

 

[just country]

morning the load I mentioned of 27.5grs. of 4320
came off www.24hour campfire.com. yes the 27.5 will
fit in Winchester brass. yes the case is full. I put
my finger over the case and tap on the table.
to compact the powder in the case. the bullet
is a barnes 53gr. FB bullet. very accurate.
the rifle is a rem. 223cal. SPS heavy barrel varmint.
justme gbot tum