HELP.. Imr 4350 Swift Aframe 300 Grain .375 h&h Load Data

71.5-76.5 according to loaddata.com. My guess would be 73 would get it done. My experience with swift bullets is they don't like to be moving super fast with maxed out loads.
 
I wouldn't assume the H and IMR data is interchangeable. Start getting close to 80 with IMR 4350 my guess is your going to be seeing signs of pressure.
 
NO, while they are close they are not interchangeable. Use the data published for each. My suggestion is to try H4350 instead of IMR4350- not to interchanged the data! H4350 is an extreme powder so is temperature insensitive.
 

Forum statistics

Threads
61,929
Messages
1,358,456
Members
117,489
Latest member
Monicrumbaugh
 

 

 

Latest posts

Latest profile posts

crossfire3006 wrote on JoninCO's profile.
Had an excellent classifieds transaction with JoninCO. A truly honest and standup member. I wouldn't hesitate at all to deal with him again. Thanks, J!
Francois R wrote on Lance Hopper's profile.
Hi Lance, Hope you well. I collect Mauser rifles and they are very much part of my cultural history in Africa. Would you consider selling the rifle now a year on ? I'd like to place it in my collection of Mauser rifles. Many thx
Cooper65 wrote on Rockwall205's profile.
I saw where you hunted elephant with backcountry safaris in Zimbabwe.
Was looking to book an elephant hunt and wanted to know how your hunt went
and if you would recommend them.

Thanks
Mike
hi, do you know about lions hunters, leopard hunters, and crocodiles hunters of years 1930s-1950s
 
Top