Help with correct minimum and maximum data

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Hello folks, I had a question I needed some help with. For those that have purchased molds that do not support reloading data, how do you start finding a safe minimum and maximum load?
For instance, I purchased the 502-600 grain mold for my 500 magnum. I cannot find any reloading data other than using lil gun which I do not have. I really like the ramshot enforcer and A5744 I’ve been using and was hoping to find a safe load using either or both.
I did send a message to the manufacturer of the powders I was using for the 500 and hopefully they had some suggestions for me, but it got me to thinking and wondered what others are using to set up their loads when no data is online or printed.
Any help would be appreciated.

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[brigettecuneoParticipant]

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I have used this site to get some load data for my 500 mag.

http://www.reloadammo.com/500sw.htm

I guess that only has the lilgun load for the 600 gr bullet.

As a side note, I think my bullets cast out of that 600 gr mold weigh closer to 565 (from my load notes)  How much do your’s weigh?  Also, what kind of load are you wanting?  like a knock the socks off load or mild load or what?

RD has some QL data for this bullet I believe:  http://www.ranchdogoutdoors.com/data/NOE/PDF/50/502600RF_500S&W.pdf

I finally was able to cast some boolits today. First time casting and overall it went pretty darn well I think. I checked a few of the keeper boolits from the 502-600-rf and mine were weighting in between 558-560 grains. I used Lyman #2 for this set of tests but plan on going with a higher lead content next round to try that with a bhn of somewhere closer to 12 with maybe some powder coating. Not sure yet.
All in all, great first casting session. I even tried an rg mold for my blackout, and even that was dropping them perfectly. I was nervous about having problems being new and using an rg mold, but they are just as smooth as butter. I followed all the directions for proper break in and also used the hot plate. Everything went like it should.

[Full.Lead.TacoKeymaster]

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cornmastah – I was at the ROSE show in Layton a few months back and drove down to have an eye ball with AL.  It’s been around 30 years since I was in SLC.  Only things I recognized were an oil refinery and Lagoon.  70 miles and the HOV lane never ended.  On the way in the morning traffic rarely slowed to 70.

Back to the subsonic 500.  Have you ever shot (I’m guessing 50 yd min and out) with the sun directly behind you about 10 or so degrees off the horizon and watched the back of the bullets in flight?  Mighty easy to walk them to the target.  Wouldn’t be surprised to find out Elmer did that to learn his long shots

I have shot subsonic and seen the bullets in flight–it is an interesting sight.  You can’t see em every time, but some of them.

I finally was able to cast some boolits today. First time casting and overall it went pretty darn well I think. I checked a few of the keeper boolits from the 502-600-rf and mine were weighting in between 558-560 grains. I used Lyman #2 for this set of tests but plan on going with a higher lead content next round to try that with a bhn of somewhere closer to 12 with maybe some powder coating. Not sure yet.
All in all, great first casting session. I even tried an rg mold for my blackout, and even that was dropping them perfectly. I was nervous about having problems being new and using an rg mold, but they are just as smooth as butter. I followed all the directions for proper break in and also used the hot plate. Everything went like it should.

Let us know how it goes when you get some loaded and “unloaded” at the range.

[Author]

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