Please tell me the max charge for .338 Win Mag 225 gr TSX using IMR 7828.
Thanks

quote:

e for .338 Win Mag 225 gr TSX using IMR 7828.
Thanks

That powder is not listed in the Barnes #4.

The Hodgdon 2008 Annual doesn't list TSX but gives a compressed load of 77.0 gr for a 225 Hornady SP

The Lyman 48th ed gives a max of 76 gr wt a 225 gr jacketed SP

Doh. Don't TSX's reach their max a with lighter charges then most lead core bullets?

As I remember it's the opposite. With less bearing surface because of the bands they move down the bore more easily. At one time Barnes said that you could use the max load for the old Barnes bullets as the starting load for the TSX.

I would suggest either calling Barnes for their suggestions and/or using a load for another bullet reduces by 3% or so and going up in steps until you are happy with accuracy or see sign of pressure.

The SWIFT loading manual shows with their 225 A Frame, IMR 7828;
Starting load 67gr.

MAX load 72gr.

THEY DONT EVEN LIST 7828 IN #2 MANUAL

I'll second on contacting the tech guys at Barnes and Hodgdon. Customer service with both companies is excellent.

Good luck

The Hodgdon website lists IMR7828 with a 225gr HDY sp pt bullet as min 72.0 max 77.0, but they do not list a 225 gr TSX, TSX load data started in Barnes #4, and as stated, doesn't show 7828.

If you are open to another powder choice, I would recommend RL22, it gives the highest velocities and is very accurate.

John

I have found IMR 7828 to be to slow for my 338 with the 225 tsx. I have found R-19 to work very well. With 250 Partitions R-22 worked well.

I looked at my Barnes manual and didn't see 7828 listed for the 338. I would think it would be a tad slow as I use it in my 338-378 Wby with good results. Now there is a cartridge that likes slower powders.

Ken....

I think TJAY and Heat are correct. 7828 is going to be too slow. Look in the RL19, 4350 range.

LWD