Thanks for all the replies,I an just getting started an have not bought anything yet waitin for the gun show 10Th. of December.

H4831sc and a hornady 154gr. work like bread and butter for me.Never tried any other power as I hit it right withthe H4831sc the 1st time for a change.

175 gr. Horn. SP Inter. with 62.5 gr. of RL22 Win. Primers, and Fed. brass.


hunter338

RL22 is hands down the best 7Mag powder.....chronied and tried the all. Regards, Rick.

Thanks for all the help ,I went with RL-22 and a 145 speer bullet, reloading with the lee ann. kit and lee 3 piece die set .

Just make sure you get them seated deep enough.....do you have a OAL gauge? If so great.....if not, then stop where you are and buy one. Next to the chronograph, this is the reloaders most important tool. Regards, Rick.

I've had really good luck with IMR 7828. I've never failed to find a sub MOA load with any of the bullets I've tried when using this wonderful powder. Here is a5 shot groupI shot recently, thebullet is a140gr Nosler Ballistic Tip launched at 3350fps. It was shot on a not so good day, note the wind speeds on the target. I'm not sure if shot 3 was me or the wind but I did make a small correction after the third shot to center it up. I didn't get a picture of the 200 yard target but it was still under 2" despite the wind.

http://i23.photobucket.com/albums/b365/dmurphy317/7mm140BT.jpg

Good luck with whatever you end up with.

I use the RL22 with a154grain Hornady bullet and it work great.

I would like more info on your load. The IMR book gives the following data:





140 GR. NOS PART
IMR 7828
.284"
3.250"
64.0
2867
50,000 PSI
69.0
3095
59,200 PSI
You are over the posted speed limit of 3095 by 255'/sec. This is a huge difference. I'm getting 3160 out of mine with RL22 max load. I have a Tikka with a 24 inch barrel. I back the bullet 50 thou's off the lands to keep the pressure down. Regards, Rick.

I was somewhat surprized by the results also. Some of the difference is the fact that I have a 26" barrel, my friend uses almost the exact load (.5gr more powder) and only gets about 3200 to 3250 out of his 24" barrel. I am seating the bullet .030" off the lands, I have to because at .010" off the lands the cartridge will not fit into the magazine. I'm also using fire formed cases neck sized only to get the max capacity of the case. Set up this way the cases will hold almost 80gr of 7828 to the bottom of the neck. The bullet is seated such that the boat tail is the only thing below the neck which gives me around 95% loading density. In my gun I started getting pressure signs at 72gr on warm days (I always work up loads to check for pressure on warm days) so 71.5 is what I consider max during the colder days of hunting season. The load shot well at .5gr above and below this but really shines where I have it.

BTW,when I first worked up this loadIMR had on the web site a 140gr load using 72gr of 7828 as max but they have removed it since then.

The other thing to remember is that each rifle is an individual and may react differently than the test barrels used for the loads listed in the manuals. This is why manuals from different companies often have different max loads, sometimes several grains of powder different. So work up each load carefully and consult more than one manual to ensure your in the safe zone.

I hope this answered your question. Be safe and enjoy the art of customized loads for your gun.