350 Legend Subsonic

[mattri]

Looking at using heavy for caliber bullets subsonic in the the 350.

Have a 1:14 18" barrel and so far have cast some 250gr bullets sized appropriately.

Anyone working with something like this or can point to some similar data- or at least a start in extrapolating?

Dummy round with a 170gr Hornady for scale.

Thanks, Matt.

 

[Twicepop]

The Legend case is about a tenth of an inch longer than the .357 Maximum. The internal capacity of the Maximum may be real close. You may be able to find data for heavy for caliber bullets in this cartridge to use as a starting point for your quest.

 

[mattri]

Thanks for the tip.

 

[3Ackleys]

Trail boss powder is your friend

 

[mattri]

Yeah figure TB, Unique and similar will be the go to powders.

Anyone have any actual data with either the 350 or the 357 max with 250gr bullet?

 

[Shooting while seated]

im interested too, have a buddy got caught with very little ammo. like 150 rds

 

[tommeboy]

+0.1gr difference in capacity for 350L brass. Just runs at a higher psi

 

[mattri]

357 Max has been around longer but still haven't been able to find any data on a 250gr bullet, just the usual lighter stuff.