ONE-TEN
Well-known member
- Joined
- Mar 3, 2026
- Messages
- 1,055
It’s no secret I’ve been in love with the .264”/6.5mm caliber for many years. It’s been the same perfect caliber to me. I chose 260 Rem years ago when I first decided on 6.5mm, and it’s now become a 260AI. And I love it. It can push 6.5mm pills at nearly 3,000fps from my 28” barrel, and will push the heaviest 6.5mm bullets at enough velocity to ping 1 mile gongs over & over. I’m not actively looking to change, but was asking myself a couple weeks ago, what I would I go to, if I wanted to switch? So immediately, I could answer the caliber would undoubtedly be 7mm. Modern 7mm bullets in the 185gr-195gr range are high .700’s even reaching & surpassing .800 BC, with the highest being close to .850BC. This is simply mind boggling Ballistic Coefficient! Then, over several days, I was searching & comparing different cartridges. Now, I’m not one to jump on bandwagons. Sure, I could simply 7mm PRC, right? Nah.. While I’d want a bit more, I’m not looking 2miles out! If I wanted to big 7mm, it’d be a 28 Nosler. But honestly, I still want to stick with Short Action. With this, I took a good look at the 7mm SAUM. And honestly, I think it may be the perfect cartridge. Able to push 185gr+ bullets around 2800fps. But still fits in a Short Action. 2000yds presents no problem with this. And I could still load these to fit a Short Action Magazine. Although, the highest precision, single loading with slightly longer than mag length would be ideal.
The more I looked at 7mm SAUM, the more it reminded me of some other cartridge. Then I finally realized, the 7mm SAUM is like a large 6mm BR! They have very close to the same body to bullet diameter relationship. And also uses the 30° shoulder. It’s basically the most efficient case design & relationship between Case Body & Bullet Diameter there is.
So, if & when I ever decide to switch, it will be to a 7mm SAUM chambering. Anyone here using it currently?
The more I looked at 7mm SAUM, the more it reminded me of some other cartridge. Then I finally realized, the 7mm SAUM is like a large 6mm BR! They have very close to the same body to bullet diameter relationship. And also uses the 30° shoulder. It’s basically the most efficient case design & relationship between Case Body & Bullet Diameter there is.
So, if & when I ever decide to switch, it will be to a 7mm SAUM chambering. Anyone here using it currently?