7mm rem mag reloading question.

[gcsdborr]

I am thinking about cutting down an old savage in 7mm rem mag and having it threaded for a suppressor. I would like to cut it from 24 to 20 inches. My question is does anyone know if I could use a faster burning powder to try to help with accuracy and pressure? I know if I use my normal powder (rl22) I’m going to get a lot of unburnt powder going off inside my suppressor. I’m looking at rl17 for a powder. I know other calibers are better suited for this but I load this one and want a shorter, flat shooting white tail rifle.

 

[1006]

Use the fastest powder suitable to the cartridge…

 

[gcsdborr]

Use the fastest powder suitable to the cartridge…

Yeah I was looking at rl19 and comparing some 280 remington loads and velocities. I’m just not familiar with the other brands well enough to know which one is better.

 

[1006]

This publication has some reduced loads using H4895, not full power but it might be of help for a full burn.

https://www.ballisticstudies.com/site/ballisticstudies/files/Hodgdon%20H4895%20reduced%20load%20data.pdf

 

[white ghost]

I have a pretty successfully accurate load for 162 ELDM/SST and 175 LRAB with IMR4350. Barrel is 24" but I see no sign of unburnt powder. May be a decent starting powder that is a touch quicker than RL22.