badguybuster
Member
I just ordered some of the Hornday XTP's in 125 and 158 grain. What powder and primers are you folks seeing the best results from? I am loading for my 627 UDR and 627 Pro.
357 mag XTP's...what powder?
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sbeatty1983
Member
I like win296 or hodgedon 110(same thing) and cci 550 primers in my 686.
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parabarbarian
Member
I use 2400 and am experimenting with 300MP. Both are ignited by Winchester small pistol primers. I only use the XTP in a carbine so YMMV.
OP
badguybuster
Member
Well, I have a marlin 357 that should be arriving at the gun store thursday so it is good info. I am looking for a good load that doesnt require me to keep a bunch of different powders on hand. Everywhere I look I get different info. Grrrrrrrrr
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badguybuster
Member
What do you think of alliant 300 mp? My reloading book (Lee second edition) doesnt list any pressure values for it but it seems to be a step up from 296. Maybe a bit much???
venomballistics
Member
I got my wife a Henry rifle in 357 last year .. sweet little rifle. didnt think I'd ever warm up to a lever gun but that one earned me.
We feed it a cast 160G HP over 2400 most of the time. It seems to augment the character of the rifle somehow
We feed it a cast 160G HP over 2400 most of the time. It seems to augment the character of the rifle somehow
OP
badguybuster
Member
Ya? I dont see a lot of loads for 2400.
For full house magnums at max loads, H110/W296
2400 is a lot more forgiving and can be downloaded and no mag primer needed, from mild to full magnum.
Mr ArchCD will recommend HS6 with a Mag primer
Depends on what you want to do with them???
2400 is a lot more forgiving and can be downloaded and no mag primer needed, from mild to full magnum.
Mr ArchCD will recommend HS6 with a Mag primer
Depends on what you want to do with them???
TNFrank
Member
If I'm not running Unique then I'm probably using Blue Dot. 
Smith357
US Veteran
I don't load light bullets for the .357 magnum and I really don't use .357s in barrels under 4" but for 158 and 180 grain XTPs in my 4-8" barrels I use 4227 and 2400. These powders are on the slow side and make quite a flamethrower out of a snubbie.
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OP
badguybuster
Member
So are you using 38's in your "shorties"?
Smith357
US Veteran
.38 +ps in the snubbies give a lot less of a light show and are easier on the ears and wrists. But then I'm old and frail.
If I were loading .357 for a snubbie I would go with Unique or W231 as they are much faster burning and work in the short tubes, they don't give the best velocity's out of the longer tubes but they are more than sufficient.
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USSR
Member
I tried both 2400 and 4227 with the 158gr XTP's, and found the 16.0gr 4227 load to be slightly more accurate.
Don
Don
parabarbarian
Member
I am optomistic about the potential of the powder in a rifle but, so far, I have only been able to chronograph the low end of the recommended loads. Next time I get out where I can set up the chrono I will try the higher end.
http://smith-wessonforum.com/reloading/215227-alliant-300-mp-powder-carbine.html
OP
badguybuster
Member
Did you ever do any follow up testing?
ArchAngelCD
Moderator, SWCA Member, Absent Comrade
I agree, W296 and a CCI-550 primer is also my choice.
@Rule3,
Yes, I do like HS-6 with a Mag primer for lower than full house magnum loads!
(I wonder how you knew though?? 
)
I agree, W296 and a CCI-550 primer is also my choice.
@Rule3,
Yes, I do like HS-6 with a Mag primer for lower than full house magnum loads!
Just a lucky guess.
shortrange
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11- 12 grains 2400 158 gr.XTP This is the load I use for lever action pistol cartridge silhouette. It is the most accurate jacketed bullet load I have found. If you cast try a Ranch Dog 175 with the same load with lyman #2 alloy. This one is super accurate. By the way use standard small pistol primers for your first try. Magnum primers with 2400 have never been the most accurate, and that comes from many other shooters that use this load.
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ArchAngelCD
Moderator, SWCA Member, Absent Comrade
Any good .357 Magnum load that you build for your revolver will work in your Carbine, I know because I have one. BUT, because the Marlin is heavy and long it's easier to handle 180gr ammo than with a 4" revolver. You don't need different powders but you might want heavier bullets.
I have a few loads using 180gr bullets that I load with Lil'Gun that deliver surprising velocity. I load them only for the Carbine. They are good hunting loads IMO. (Hornady XTP and Cast Performance Hard Case)
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David LaPell
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I have had good results with 2400 powder in both the 125 and 158 grain XTP and I use small pistol (non Magnum) primers. Right now in my 27-2 I am carrying some 125 grain XTP with 16.5 grains. They work pretty good for a carry load.
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