Layman's Loading Guide #49 seems hotter.

[gonoles_1980]

Load is for a 357

Just bought some Bullseye today and I'm looking to load it mid-range with 158gr lead bullets. Either Speer LSWCHP or xtreme LSWC

Alliant's site has 4.8 gr, I assume that's the max, 10% down is 4.3, so that looks like 4.3 to 4.8.

Layman has for a 160gr Lead (linotype) with a range 4.9-6.9.

Speer's loading manual has 4.3-4.8.

I like using W231 of 4.5 for this bullet, but of course I don't have any. I've also tried N320 at 5.0gr which seems good. But I want to save the N320 for my hotter copper plated loads.

I'm thinking of a ladder of 4.4-4.8 to test out. That's still below the Layman numbers. But I figure Speer knows how to load their bullets, and Alliant pretty much matches Speer.

Why the big difference between Layman and the others? What's your favorite light/medium load with Bullseye?

 

[rcmodel]

Lyman is talking about real grease lubed cast bullets, made from Linotype, which is a very hard bullet alloy.

Alliant is talking about the same Dry-Lubed Speer bullet Speer is talking about.
(They are sister companies under ATK ownership now.)

Which is a soft swage lead bullet that can't withstand being driven to 1,100+ at full .357 Magnum pressure.

Different bullet alloy & lube methods = Different load data.

The devil is in the details!

rc

 

[gonoles_1980]

Learned something new, thanks RC. One more question then, I looked up linotype sayst they're 22 brinell, xtreme has cowboy at 15 and lead at 18, I have been buying the cowboy loads. Not sure where the Speer 4628 LSWCHP is. I assume I use the same load for the xtreme as the Speer.

Man, you know all sorts of stuff.

 

[ArchAngelCD]

Swagged bullets are usually ~10 BHN but I'm not sure what the Speer bullets are rated at.

 

[rcmodel]

Yes, your Cowboy bullets are much closer to Speer bullet hardness then the Linotype bullet shown in Lyman number 49.

Still harder then soft-swaged Speer bullets, but much softer then Linotype cast bullets.

BTW: Look on page 80 - Chapter 9 of the Lyman manual for a better understanding of bullet hardness.

Alloy hardness chart on page 81!

Matter of fact, read the whole chapter a couple of times!

rc

 

[LiveLife]

Man, you know all sorts of stuff.

Sometimes we wonder if rcmodel is human or a reloading computer database pretending to be human with a sense of humor.

 

[gonoles_1980]

Marked the chapter and will read. I never bothered with that chapter since I don't cast bullets, looks like I shoulda bothered.

 

[GooseGestapo]

Definitely human !

If he were a computer, he'd know the difference between THEN and THAN.
ie: coming or going.... Also kind of like Affect vs. Effect...

actually, most of the Lyman data is shot with Lyman #2 alloy, that somewhat softer than (not then!) Linotype.

I mostly find the Lyman data most closely matches my own observation as I use wheel-weights with sometimes a bit of 95/5 lead-free solder added.

(I must add; my Oxford (England) educated college Inorganic Chemistry professor insisted that Aluminum be pronounced Al-u-minium, and Antimony An-tim-ony..... not A-luminum and an-timony as in "alimony"....) but THEN, he was usually right... Which is why he was on the "team" for the Manhatten project circa 1943-45...

 

[336A]

Just bought some Bullseye today and I'm looking to load it mid-range with 158gr lead bullets. Either Speer LSWCHP or xtreme LSWC

Alliant's site has 4.8 gr, I assume that's the max, 10% down is 4.3, so that looks like 4.3 to 4.8.

Layman has for a 160gr Lead (linotype) with a range 4.9-6.9.

Yikes that is up there, I had to pull out my Lyman 4th Edition Cast Bullet Handbook to check that data. Here is what they currently list

#358156 155gr SWC (#2 Alloy) Bullseye
Start: 2.8gr
Max: standard pressure 4.0gr
MAX: (+P) 4.4gr

#358311 160gr RNsame alloy, this bullet takes up the same case capacity as your run of the commercial 158gr BB SWC bullets.

Again Bullseye
Start:3.2gr
Max: standard pressure: 3.6gr
MAX: (+P) 4.1gr

It looks like you may want to start your ladder loads well below what your thinking. And as always get the most current load data you can find, please be safe.

 

[336A]

Also here is what Alliant has for Bullseye, I didn't see 4.8gr listed.
Standard pressure, and yes these are all max loads listed on their site so reduce by 10%
http://www.alliantpowder.com/reloaders/recipedetail.aspx?gtypeid=1&weight=158&shellid=26&bulletid=30

(+P)
http://www.alliantpowder.com/reloaders/recipedetail.aspx?gtypeid=1&weight=158&shellid=27&bulletid=30

 

[gonoles_1980]

336A that's for a 38spl, I'm loading 357's.

http://www.alliantpowder.com/reloaders/recipedetail.aspx?gtypeid=1&weight=158&shellid=28&bulletid=30

Updated original thread to show the size, left of that it was for a 357.