Ruger 77 357mag loads

[kmahow2]

I was not stating that as fact but the 92 action is the stongest of the winchester type levers & will take 55Kpsi.
I've no idea what pressures the 77/357 will handle ! If the action is the same as the 77/308 then cool, but I've not researched it. If it is, then 308 is good for 62Kpsi, so could run a grain or two more or slower powder & use small rifle primers, if the firing pin win strike them hard enough to set them off. My Win9410 shotgun, whilst built on the rifle platform will NOT set off rifle primers, because the hammer spring is weaker so as not to puncture shotgun primer cups, which are large pistol primers in a cup!

The original 357 Magnum spec was 43.5Kpsi, but todays SAAMI spec is 35Kpsi, reduced in 1995 due to older handguns failing or shaking themselves to bits
Those pressures are safe in revolvers, but rifles can handle higher pressures, but there is no seperate spec due to the interchangeability of ammo !

Have fun working up some loads

[Simon_S]

I was just need some rounds to group well at 50m did not need 2000fps. its all gone tits
up. got some gm 125gr to try in and there going all over the place.
I order some 180gr to try.

say in my loading book lever guns where black powder gun, low end pressure, then you got bolt
guns medium pressure, then you got rifle falling block like the ruger no1 high pressure

[JackDavis]

Check a reloading manual and make a few of each?

I'm just starting out and going to use 158grain lead RNFP for 50m and the for 100m+ going to use 158grain FMJs and up the powder charge

I'm going to be using unique powder

I did put a post up a while ago asking for recommend loads and there are a fair few responses with good advice and loads on there

[Simon_S]

I have done with the GM 125gr RNF, it was not good. the range I shoot
on I have to load them low to 350ftlbs. hope the 180gr are ok. was getting some nice
groups with my Rossi 92 with 125gr lee bullet. 35mm at 50m.

[Livefast123]

Personally I use Hodgdons Titegroup in my .44 Magnum target loads, no reason why it shouldn't be good in .357 too. I find it economical, clean and accurate. Plenty of loads over at the Hodgdons online reloading centre.

I also use GM boolits, which seem to work out of Rossi carbine.

[Simon_S]

Been using it myself for years. Was reading that the Ruger like the heaver bullets better.
So I will be trying the 180gr TC with the 38spe start load of 3gr to a max load of 5.5gr.
See how I go with it, Think I will get the new trigger spring for it too its only about £15.

Found good light load for this 3gr Titegroup and a 180gr GM TC works well getting sub 1" groups
at 50M. This is with a new £6 trigger spring fitted.