I have some h110 I'd like to use up using speer 300 grain jsp's.
for my first rounds I'm starting at 20 grains,anyone see any problems?
any other h110 data you could share?
I've heard 45 long colt brass is thinner/weaker than 44 magnum or 454 cases.
could I trim down and use 454 cases for 45 long colt to maximize case life?

H-110 From 19.3 grains to 23.5 grains
CCI-300 Primer

I don't know about trimming but 45LC cases are most definitly weaker than 44RM cases.
I checked a couple of my reloading books and they don't list anything slower than 296 except for Sierra. The say 240gr bullet-23.5gr of H110. Best I can do for now. But you could visit www.chuckhawks.com . derf

I've not heard or experienced that current 45LC brass is thinner/weaker. That used to be the case when they had balloon heads. I use Starline which is pretty good.

You need to read this: http://www.sixgunner.com/linebaugh/dissolving.htm

BLOWSOMETHINGUP
I'm sort of hesitant, not knowing the firearm you are using. Here's what I use in a Colt Anaconda and a Rossi 92. I load 20 grains of H110 behind a 300 grain gas checked Saeco bullet. This load is accurate and fun to shoot.
Jim

In an incremetal overload work up, I have shot Winchester brand 45 Colt brass at double the 454 Casull powder charge in a poorly fit chamber [OEM Stevens .410 shotgun] and the case walls started to separate from the web of the case.

That was 40 gr H110 and 405 gr .458 bullet seated with a hammer. The over all length would be too long for a revolver, but it is a stout load.

Any talk of 454's carridge design needing the small primer or being extra strong is just that - talk.

When science and profit clash, profit often wins with the gun culture urban legends backing it up all the way.

[ 03-21-2003, 21:16: Message edited by: Clark ]

20gr is actually on the bottom end of for H110. Very slow burning powders should never be underloaded. The Speer #12 shows 21.1 as a start but I have shot your 20gr load w/ a 300grLFP from my Euger BH. Remember, these loads should only be used in a Ruger or TC or Marlin. H2400 & Blue Dot also work well for 300gr/1000fps loads. You can "hot rod" the Colt brass just as long as 44mag brass. In this case, it's your revolver that will determine what loads you shoot, not your brass.

What fredj said.
Do not underload W296. If your cases come out greasy you are not working with the pressures the powder was developed for. If you have a modern .45 LC 21.0grs. is a starting load.

After you get tired of foolin' around load those 45's with black powder the way they were intended to be used.
Frank