loaddata for cast 357maxi

[hogstad7]

Which books have loaddata for cast bullets in 357maxi? I want published loaddata. Preferrably with Vithavori powders, but Hodgdon is also ok. I have the Lee 2nd, Vith 4th, and Lyman 49th manual. But neither quite suit my needs for heavy bullets.

Thx!

[wlc]

How heavy do you want to go? I load 250 and 300 gr cast in mine. There are not any published loads for those bullet weights though. IIRC the highest any of the manuals I've seen only go to 200 gr.

[hogstad7]

I am considering the NOE versions of the rcbs 35-200-fn and rcbs 180gr silhouette. Will be shot in a 10" contender for imssu silhouette

[ubetcha]

I also have the same molds and bullets and will be using it in IHMSA sil. Only I have a 12" T/C bbl rechambered to 357max by Mike Bellm. The Lyman Pistol&Revolver Handbook 3rd Edition has a section at the back of the book that has load data for T/C's using cast and j-words.. It also has data for the 357 max. I will be watching this post for info too. Still in the developing stage yet,but IMR 4227 is popular along with AA1680. The Max was design to shoot heavy bullets so I plan on staying with 175-200gr bullets.

[frnkeore]

I've had excellent results in my Dan Wesson 357 Max using RL7 (or RX7 I like that better, it was the original way it's listed in old manuals).

Alliant doesn't list it anymore but, the 2005 manual has Contender data with a 12.5" bbl. COAL is 1.975 for all loads (the DW will take 2.13).

180 gr sierra Jac, 25.0 gr, 1760 fps, 39.7K CUP

200 gr Speer Jac, 22.3 gr, 1650 fps, 41.4K CUP

I've used 25.0 gr in my DW with 208 gr lead (35875 & 358315) bullets with COAL of 2.13. A very accurate load.

I've also used H110 at 21.0 gr for those bullets, again at 2.13 COAL with very flat primer, work up!

Also for H110, Hodgdon list 21.0 for a 180 gr Jac at 1.99, 1694 fps, no pressure listed in a 10" bbl.

20.0, 200 Jac, 1604 fps, same as above.

Frank

[hogstad7]

Which powder/bullet combos are listed in the newest (5th?) sierra rifle and pistol manual?

[leftiye]

1680 works well (my fav so far). 300 MP should also. The max doesn't need really slow powders, especially if you're using lighter (below 200 grains) boolits. I use 200 grain boolits exclusively so far, and don't see a bit of good for going lighter.

[ubetcha]

1680 works well (my fav so far). 300 MP should also. The max doesn't need really slow powders, especially if you're using lighter (below 200 grains) boolits. I use 200 grain boolits exclusively so far, and don't see a bit of good for going lighter.

Do you have any load data for the 300MP? Like I stated, I'm still in the load developing stage and looking for any data.

[Jupiter7]

Here's a good link with a little heavy bullet data
http://www.lasc.us/FryxellLyman358627.htm

[WALLNUTT]

RCBS 200FN 19gr 4227 40X40 60X60 TC Contender

[wlc]

Do you have any load data for the 300MP? Like I stated, I'm still in the load developing stage and looking for any data.

NO personal experience here, but IIRC I read somewhere on the interwebs (so you know it has to be true....:)) that 300mp is very similar to H110.

[leftiye]

It's a bit slower. Also, it doesn't have ignition inhibitors (what makes 110/296 dangerous to download), and can be started low and worked up. Is nice and dense like 110/296. Probly won't make much difference unless in a larger cartridge. The maxi might just like it, after all it likes 1680, and VV N-110 (if I have the right number).

[saleen322]

I have been shooting 357 Super Mag since the 80s including in IHMSA. I competed with a Dan Wesson in revolver class as well as having a 10" contender barrel. Later I added a single shot handi rifle in 357 Max. I still have and occasionally shoot all three. All of the testing I did over the years showed 4227 as the clear winner in performance and accuracy. I tested H110, WW296, 2400, 5744, AA9, Reloader 7, and a some I can't remember and 4227 spanks them all with my cast 200 gas check. Hope this helps.

[leftiye]

Did you ever experience problems with pressure/velocity rise as the gun and ammo heated up? Others have. My experience is that 4227 is bulky, and that it burns poorly, reaching peak pressures before it competes for velocity. Frixell likes it too in .357 maximum though. Some loadings say it can compete with H110/296 for velocity in heavy (270 gr) 44 mag.

[saleen322]

Did you ever experience problems with pressure/velocity rise as the gun and ammo heated up? Others have. My experience is that 4227 is bulky, and that it burns poorly, reaching peak pressures before it competes for velocity. Frixell likes it too in .357 maximum though. Some loadings say it can compete with H110/296 for velocity in heavy (270 gr) 44 mag.

The short answer for me is no. Understand that a normal silhouette match is 40 shots plus shootoff chickens as it applies. Championship matches are 60 or 80 targets plus the shootoff round. Where you need the accuracy the most is toward the end. For me, the turkeys @ 150 meters were the challenge and that is past halfway in the match. I don't recall me having to shoot the shootoff chickens in Revolver more than maybe once or twice in my career but you really need the gun to perform there as you are shooting the smallest target @ 200 meters. If the powder was fouling the gun, you would not get the performance when it you needed it most and 4227 gave me no issues. I used 4227 with the 357 SM/Max and used to use it with the 22 Hornet as well. I now use Lil' Gun with the Hornet and come to think of it, I never tried the 357 SM with that. That is my experience but YMMV.

[hogstad7]

Bump.
Alliant and imr are not in sale her in Norway. Mainly Vihtavouri we use. Which bullets is listed in the Sierra manual?