Guy Miner
Master Loader
- Apr 6, 2006
- 17,591
- 5,081
We recently tested IMR 8133 and found it a very good fit for overbore cartridges. Link takes you to both the written article and the Ultimate Reloader video:
ultimatereloader.com
Regards, Guy
TESTED: IMR 8133 Smokeless Powder – Ultimate Reloader
![ultimatereloader.com](https://ultimatereloader.com/wp-content/uploads/2020/01/cropped-UR-Logo-3.0-No-Text-Square-extra-room-32x32.png)
Regards, Guy