I've just received a box of Plated 148 grain DEWC in .357 from X-Treme.
Anybody have any experience reloading these into .357 Mag cases. I have a couple of pounds of Bullseye I'd like to use up.

I have loaded Berry's plated wadcutters in .38 special cases with no trouble at all, using standard loads, typically 2.7 grains of Bullseye.

Not all that accurate in my gun.

Extreme's 148 DEWC are OK for target practice. 2.7 Bullseye is just about right. When you use up your supply from Extreme try Hornady 148 HBWC with 3.2 W231 (or HP-38) you will notice a difference in accuracy and felt recoil. Nice load for competition.

I like the plated bullets for the 9mm etc. but in my 38 and 357......................

I can work with the crimp pressures a lot more with the lead bullets and you can down load them just a little more, since they don't have a jacket.

Plated will do well for target work in the 357 case and the good thing is that you do not have to worry about any leading from the bullet.

With the magnum you can work up to 3.5grs of Bullseye if the lighter target loading does not work out for you.

Good shooting.

I've only used mebbe 500 plated bullets and always used lead bullet load data, not trying any formula of the "jacketed bullet mid level velocity loads". Normally I got decent results, but have since started PCing my cast bullets and plated bullets are no longer of any use to me...

Coated bullets are da bomb. Clean as plated but w/o the limitations.

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"He was kinda funny lookin'"

just loaded 150 rounds with 3.2 Gr. W231 this past weekend in 38 spl brass. Nice soft and flat shooting load for the indoor range. Had a squib and had to pound out the bullet. It has a hollow core.
On a separate note, I have an old hornady set of dies which uses a retaining clip to hold the seating rod and crimp die in place. I could not get the roll crimp to work right. As a result, some of the bullet had a very tight fit in the cylinder of colt officers target and some wont' go in at all on my pre-28 HP.
I like WC ....

tell me about it.
Since much of the industry ditched wax in favor of coatings, this board has see a decline in noobs with a box of Keith types being told to size and lube correctly.

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it just needs more voltage

That powder weight would correspond to W231. Bullseye, according to Alliant, tops out at 2.8 gr in a 357 for the 148 LWC bullet, which is not plated like the Berry's et al.

my data from a old 1972 Hercules sheet shows that load at only 830 fps at 10,200 cup.

If that is a "Topped out loading" I guess I will not mention the 357 magnum 146 LWC load with Bullseye that hits 1,390 fps in the old loading data.

The Alliant page on the internet doesn't have lead bullets shown with Bullseye in .357 but in the data for .38 Special +P they have 3.9 grains max for a Speer 158 grain LSWC. The Speer LSWCs are soft swaged and not made for high velocities, which is why they don't show .357 data for it. 2.7 grains of Bullseye with a 148 gr. bullet is near the bottom of the load data in the Speer book but it's a great target load. I'm sure that with a harder cast 158 grain SWC the allowable charge for Bullseye is much higher in .357 Mag.

I'd go get my Speer and Lyman books, but I'm having a bout of laziness right now. I'll look it up later and come back and edit.

Ah, we're back. Speer book 14, 158 grain Speer (soft swaged) SWC in .357 can go 4.8 gr. of Bullseye.
In Lyman 49th a 150 grain hard cast SWC with three driving bands can go 7 grain of BE, a 155 grain with 4 small bands can take 7 grains also and a 160 gr hard cast RN with two big bands and a small one takes 6.9 gr. BE.

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"He was kinda funny lookin'"

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NRA Pistol/Rifle Inst. RSO

Aren't you quite the parser? "Topped out" was intended to refer to the max load number for the powder, cartridge, and bullet in question.

There is more information on the old Alliant charts, which include four loads for lead, one of which is specifically the 148 gr "LWC". 2.7 gr BE, 14.6k psi, 785 fps.

I don't believe I would put too much faith in extrapolating from 158 LSWC, which is listed too and shows 3.6 gr BE, 15.5k psi, and 910 fps.

Berry's says not to run below 800 fps, so I would be careful, having had enough of sticking bullets in my barrels.

For .357, I load DEWCs over 4.5 grains of 231.
876 FPS with just a little "snap"

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-jwk-
US Army '72-'95

The Lee book shows 3.4 gr for the "148 Grain Wad Cutter" bullet. W231 powder and approx. your listed velocity. The Hodgdon site shows 357 Mag load data for the 148 HDY LHBWC with W231 as 3.4 Max at 908 fps. You know what works for you, but that is a relatively large discrepancy.