Rainier Plated Bullets; Conflicting Load Data?

[Deplorable Me]

I'm researching load data for .44 mag Rainier plated bullets. I'm finding conflicting data with a history. Old data says to use lead reload data, current data says to use jacketed data with a light crimp. Anyone else notice this?

Anyone load these and what data did you use? Survivors only please.

 

[MilesTeg]

This is new. The plated bullet manufacturers have been pushing this lately. If found my most accurate loads are half way up the jacked data. I usually start at plain lead and work up.

 

[mosquito]

Yeah, modern load data for plated bullets leans more towards mid- jacketed loads, then the older data which always said use lead load data. I use the jacketed data and usually end up somewhere around the 1/3 up from minimum area! YMMV!

Skeeter

 

[Aimtite]

Use lead bullet data. A plated bullet is not a FMJ bullet under any circumstances.
The limits in speed, engraving force and other considerations have notthing to do with FMJ.
Beware of books like the popular Lyman's that have outdated information for many cartriges.
Use manufacturing information from powder and bullet manufactures and compare.
If you take a couple of similar lead bullets from Hornday and Sierra and compare that with the powder company's data that will give you a good start.
There are also good online resources. Just beware of the forums and "my special" recipe type of deal.

 

[Darth]

I always consider plated bullets FMJ and just start at the starting load.

 

[Deplorable Me]

I always consider plated bullets FMJ and just start at the starting load.

They work and go boom and the gun doesn't?

 

[Darth]

They are enemic. They need worked up.

Done it with 357 and 40 (The "dangerous"caliber.) I have more reloads in 40 than any other caliber.

My 40 load is 5.5Gr Power Pistol with 180Gr.

 

[Darth]

They are enemic. They need worked up.

Done it with 357 and 40 (The "dangerous"caliber.) I have more reloads in 40 than any other caliber.

 

[Aimtite]

I always consider plated bullets FMJ and just start at the starting load.

You should be fine with the 40 cal keeping the load low and given the speed is well below 1,600 fps. FMJs do not have that limit. Plated bullets do.

just some thoughts...

With low charges and short barrels on pistol barrels will not experience high pressures and fast speeds. Most calibers anyway.
Still keep an eye on speeds and fouling depending on rifling made by manufacturers. Some types of rifling regardless on how is cut and treated
have a hard time with lead and plated bullets. Same thing with polymer coatings. So this has to be checked. When accumulation starts can
go up fast. This is a condition of relatively new melonite barrels even with shallow rifling.
Watch out with the 357 and longer barrels. Slow powders and high charges can put some serious speed so better go for faster fuel
and low charges like those made with shotgun powders to imitate the black powder / lead bullet charge.
It is a good idea to go for the heavier bullets because they are slower so one has more powder options to conserve barrel pressure
in a number of firearms and different barrel sizes that shoot that round.

 

[HighlandLofts]

The Rainer 38 caliber bullets I bought had
"Do not exceed over 1,200 feet per second"

Over 1,200 fps you will fowl up the barrel.

Did you contact Rainer for loading data?

 

[Acer-m14]

all i can say is with plated .. use cast loading data .. and they suck in Glock's ..