Originally Posted by beretzs
Originally Posted by BobinNH
Absolutely a good idea.

Just offering observations based on what we have seen first hand from the cartridge with different powders.

It's still a wildcat,so we are on our own.......Knowing I could push it faster, I have always tried to stay on the conservative side and have still been impressed with how "easy" and tractable it is to load.

Be careful with the 7mm Weatherby data....I know first hand the RETUMBO data with 160's is very hot if you approach MAX in the Nosler manual. The 7mm Weatherby seems to be loaded pretty hot. I would work up to any 7mm Weatherby data in the Mashburn from below, to be safe.


Agree with this. I know when most folks ask me about data for the MSM, I usually direct them at published WBY data as a starter. Bob nailed it by saying start at the bottom. You'll see straight away with your chrono where you stand. It's about the closest thing we have for published data if you want a baseline.

Jake, I'm looking forward to your work with 7828 and the 150-175 class Bullets. Seems like any of them will really do excellent in the MSM.



Yeah. This ain't my first rodeo with a wildcat. Got a 338-06AI 6-284 then a bunch of old cartridges that in a good modern action can be pushed a bit harder than the 45-55k they were approved at back in the day and that factory rounds are loaded at. Seems like you guys have got it figured out so it will help me get there a bit quicker. The 338-06AI was an adventure since there isn't as much info out there on it. The 6-284 was as well. I did pop a primer on the 6-284 first time seeing that don't want to repeat it for dang sure. Learned a lot from those two. With as much info as there is here on the Mizzum I hope to not repeat any of the lessons I previously learned.

Hopefully I can post some results Thursday or Friday.

Jake