Need load for .357 180 gn lead

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btoran
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Re: Need load for .357 180 gn lead

Post by btoran »

it looks like you're trying to use existing bullets and powder. when you run out, don mentioned above that there is a good recipe for a 125 gr bullet. the nice part about it (aside from accuracy), is very little kick. great for paper punching.
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TrashcanDan
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Re: Need load for .357 180 gn lead

Post by TrashcanDan »

Blue dot seems to work great at max charge, but as the charge drops, so does the accuracy or consistency.

For me, blue dot worked great at near max (-5 to -10% max or +p) in .44 through a revolver.

Have you had any luck with bullseye?

I go through a lot of unique as well, noticed it will push a 158 gr lrn but because of the twist rate I 'm going to have to switch projectile and powder combo.
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Re: Need load for .357 180 gn lead

Post by Johnz »

No Dan, haven't tried Bullseye for this load/rifle combo because I always figured it was too fast of a burning powder for the application. I figured the pressure would peak well before the bullet left the barrel.
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Bibletotingunslinger
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Re: Need load for .357 180 gn lead

Post by Bibletotingunslinger »

Good wisdom here, I thought about typing a bunch of tech stuff, but it seems to have been said.
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Re: Need load for .357 180 gn lead

Post by Johnz »

Image

This is my latest test firing of the 180 gn bullets I mentioned before.

The reason I'm testing them at this time is to potentially replace the 180 gn, .45 Colt loads in a Marlin 1894 used in a steel silhouette match that chrony'd at 1400fps muzzle velocity using 9.8 gns of Unique. I am not attempting to match that muzzle velocity exactly with this bullet but maybe get at least get to 1200 - 1300 fps with it. I think it will still have enough energy to knock over the steel rams at 200m.

I test fired two groups of 5 shots each.

The top 5 holes (1 hole on far right of upper group actually has 2 holes) were fired at 50 yards using my Rossi 92 with 13gns of W296 (win mag primer) using iron sights with a full bead on the center of the target (bullseye)

The bottom 4 holes (the 5th one was fired separately & is at the bottom) were also fired at 50 yds with 10gns of Alliant 2400 (std small pistol primer) also using iron sights with a fine bead at the bottom of the bullseye ring.

Accuracy from this rifle at this range using lower weight bullets is usually much better than this so I have to conclude that the 180 gn lead bullet is not as stable in this rifle given the twist rate.

I will do more testing of this bullet after I'm able to tell if there is severe leading or not from these velocities without using a gas check.
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Re: Need load for .357 180 gn lead

Post by groo01 »

Groo here
The problem with a bullet as long as the 180gr 357 is you must get the FPS up high enough to
spin the bullet fast enough to fly right.
Pistols run between 1/14in to 1/18in where as the m-92 s running 1/30in.
You can't just slow them down, you must match the Rpm's to the bullet.
With that bullet and twist, I would think you need 1600 to 1800 FPS.
That is doable with magnum powders.
The FA 454 has a 1/24 twist and is known to not like heavy [300gr+] bullets till you get them up to
around 1300 or 1400fps.
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