Heavy 357 Max load help please!

[uscra112]

Agree with 357Maximum that the optimum boolit (or j-wart) weight is 180 grains, at least in a pistol length barrel.

Lil-Gun is my choice for powder.

[nanuk]

I am thinking the RD 190 grainer was made for the Max....

at least in MY dreams

[MT Gianni]

My factory throat could chamber the 3589 with no problems.

[TCTex]

I am thinking the RD 190 grainer was made for the Max....

at least in MY dreams

LOL. I understand.


The 190 RD was developed with the 35 Rem in mind, I think.


I could chamber dummy rounds with the 190, but JUST bearly. If was a tight fit with the 190. YMMV. My barrel is also a MGM. However, I did tell Kerry that I was going to shoot cast in it. If you sent him a dummy round I am sure he would cut it for the 200gr RCBS if you wanted...


For what its worth. My 15in barrel could shoot the 190's at 2000 fps with H100 or LILGun. The 180gr XTP pet load for my barrel was getting 2100 FPS with LiLGun.

Duane

[nanuk]

I've got Handi rifles, and both have long forcing cone throats, with one deeper than the other.

from what I've read, they take a boolit seated way out there !

[cwlongshot]

Sorry to bring back a oldie!!

Im looking for 300 MP data in the max & Legend. Ill extrapolate the Legend pretty easily. . Id love to PM 357 Maximum but see he has been banned... Anyone have a contact?




NOE 360-232
Accurate 36-270c
LEE 190 RD
(Shown in my palm all together)
LEE mold block no marks WFNGC (Green Bullet)

ALL these have proven good shooters and performers in my Maxis. Matter of fact a friend shot his bear this year with that 270g in a Maxi two shots thru and thru plain base powder coated with quarter sized exits.

Dont underestimate what heavies can do!

[Dinny]

I'm the friend who shot a bear with the Accurate 36-270 shown above. Loading it with a slightly compressed load of AA1680 and lighting it with a SRP I am getting 1755fps from my 22" rifle barrel. I have little doubt it will work out to 150yds if I do my job and place the bullet in the correct spot.

Thanks, Dinny

[Meatpuppet]

Hmmm... I mostly load heavyweight 357 Maximum for suppressed use. Since I am looking for 1000fps and minimal muzzle pressure, case volume is not an issue for me. The soft lead projectile really smushes out at subsonic velocity.

MGM 16" Barrel (1-14 twist).

Projectile: 300gr Powdercoated & Swaged soft lead projectile
Brass: Starline
Primer: CCI Small Rifle
Powder: VV N350 - 8.0gr
OAL: 2.30
Velocity: 1050 nominal

Projectile: 290gr Swaged Jacketed Soft Point
Brass: Starline
Primer: CCI Small Rifle
Powder: VV N32C Tin Star - 7.5gr
OAL: 2.30
Velocity: 950 (ish) but super quiet.....

[Dinny]

Meatpuppet,
Are you swaging those bullets yourself? Also, are you sizing the bullets nose to fit in your chamber? I have a barrel that was reamed with a PT&G reamer that gives just a hair more clearance in the throat and it seems to shoot very well that way. Heavy WFN and RN bullets don't fit well but most others do.

Thanks, Dinny

[Meatpuppet]

Dinny,

Yes. I am swaging in a BT Sniper Point Form Die with a 6S profile. I can also do a hollowpoint profile, but my OAL is limited to a 2.1 maximum which still has a bit of a "press fit" to chamber in the MGM barrel. I have a newer MGM Barrel that was cut to accept the HP profile at 2.3 OAL, but I have not had a chance to experiment with it yet. I do think at subsonic speeds the HP profile is the better option.

For the green monster, I cast from an Accurate Molds 34-310Z, powdercoat and then swage in the point form die.

For the Jacketed Soft Point 285gr, I cast from an Accurate Mold 32-270B and drop it in a drawn down RCE 40 cal jacket (sadly, not available any more) and then swage up in the point form die.

Again, these are not really high performance rounds, just entertaining as heck. For high performance in 357 Max & 358 SOCOM I generally use swaged, jacketed projectiles in the 150 - 210 grain weight.

[Dinny]

I loaded some more of those Accurate 36-270s today. They were cast much softer than the first ones. Of the three bullets I shot into a 17" deep box filled with wet packed papers, one got away and I caught two. The two I caught were in the last few inches of the box. I still have doubts that this bullet will expand inside an animal with a MV of 1755fps. I may need to go softer.

Thanks, Dinny

[cwlongshot]

Ill cast some dead soft next...

CW

[Dinny]

Here are the softer ones CW cast for me. I also found that a MP 220 LHP (Red PC) expanded nicely with this softer alloy. This bullet weighs an avg of 215gr with this alloy.

270gr LFP has a 1755fps MV. I used the same powder and charge weight for the 215gr LHP so I'm estimating it has a MV of 50-100fps more. I plan to chrono that load next weekend.

Thanks, Dinny

[bluejay75]

Dinny,

Is the 200 grain the MP Clone? Great casting and testing!

JB

[Dinny]

Dinny,

Is the 200 grain the MP Clone? Great casting and testing!

JB

JB,
I believe it is. I just looked at pics CW sent. The mold says MP 220 FN so I may have mistyped the weight. It does weigh 215gr with this alloy.

I'll be in your AO on 12 Feb. Want me to bring you a handful to try?

Thanks, Dinny

[cwlongshot]

Dinny,

Is the 200 grain the MP Clone? Great casting and testing!

JB

[bluejay75]

Dinny,

I honchod that run. I was pandering for load data. I’m heading to Paris on the 12th. Don’t need boolits but I hate I missed you.

JB

[Dinny]

I'll arrive the afternoon of the 11th. Try 24.0gr of AA1680 in a 357 Max case with a SR primer.

Thanks, Dinny

[cwlongshot]

It’s a nice casting Mold for sure. Cast about a hundred with it yesterday.

CW