I have a bunch of the Win 124 FMJ-RN 9mm I got for for a tradeout along with 4 lbs of Unique. Anyone got any load data for these bullets with this powder.

I have my manuals on order but not in yet. The load book I got has no info on Winchester bullets.

Is it possible to use the load data from another bullet for the info I need to use Unique?

Anyone have any loads that worked?

You will not find any data specific to Winchester bullets with Unique as they are made by different companies and Winchester never published loading data with any thing else but their powder.

You can use any data published by any of the other sources that have Unique data with 124 to 125 gr jacketed bullet. The link below is for Alliants data using 124gr JHP Gold Dots wich can be used for the FMJ. Reduce 10% for star load.
Alliant Powder - Reloader's Guide

Steve,
Thanks, I wondered about that. Wasnt sure if I could use other manufacturers bullet info. That makes it easy. Once one of the manuals gets here Ill read it twice and then give it a try. I have Lee, Hornaday and Lyman manuals coming. Did I miss any other good ones?

Thanks again
Michael

What about the OAL? The GDHP is shorter than the FMJ-RN. How do I adjust for the difference.

Q: What is the first rule of handloading?

A: Start low and work up.

As far as the C.O.A.L. goes, it can be different for any specific gun because variances in the way they feed the completed round. It can also change with different bullets of the same weight. You do realize that the O.A.L. published is there to qualify the way the pressure testing was performed and not to guarantee that the loaded round will feed-right?

Seems as though you are looking for something to copy instead of developing a load for your gun with that bullet. If so, that is not a good modus operandi!

Seat the bullet so that the loaded round is at the SAAMI maximum C.O.A.L. and start with the minimum charge for the powder you're using based on that bullet's weight. Load about a half dozen of each as you adjust the length to feed correctly in your gun. This will allow you to zero in on the correct length without having to pull a zillion bullets from rounds of unfavorable lengths. Adjust lengths in increments of .005"-.010". after you hit the right length, then adjust your charge weights upwards as necessary.

Load development- not building ammo from a recipe. You're not working with a shotgun.

Finally, never use data somebody has given you without verifying it in published load data.




Bruce

PS This is a virtual reprint of the response I gave the OP in another thread he left concerning pretty much the same thing, only blasting Lyman's 49th reloading manual.

There are a lot of manuals available on-line, such as the ones from Accurate, Vihtavuori and Western Powders as well as several reproductions of hardcover books. If I had to recommend one more book to get it would be one of the newer Speer manuals. You will end up collecting a lot of data and comparing it endlessly.