7 sherman MAX
- Thread starter bjay
- Start date
My smith is chambering my barrel as we speak for the 7 Max. I bought the reamer and adding some FB for the Berger 195 at OAL 3.200 on a LA. I will post probably in a few month. Should be a good combo!
7 max is SAUM improved to 40°.depends on freebore youre getting it can be done both LA or SA
Im hoping to hit the 3k fps mark w the 190 A-tip and good accuracy. To the guys loading the A-tips, how are they seating without a modified seating stem?
How well does it feed in the bdl I’m looking at building one in a defiance long action with a bdl set up for hunting.
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I would agree, some of his numbers are a absolute best case scenarios. But overall, I'm fairly happy with what I'm getting out of my 7 max with a 22" barrel. I'm equaling or surpassing velocity in my 7 Rem mag with a 3.5" shorter barrel and less recoil...burning a touch less powder.
I'm still fine tuning but it looks like my final load will be somewhere in the 3225-3270 fps range running 69ish gr of RL 26. I'm basically .5-.75gr from a shiny ejector stamp and an extracter mark from a tikka bolt.
I hope to see someone get some pressure numbers for this caliber so we can see what's really going. No doubt they're running higher than your standard calibers...but is it dangerous? My brass doesn't seem to think so... At least not yet.
This is one of the reasons I didn’t go the Sherman route, after some research and seeOmg real world numbers it just wasn’t worth it to me.
I’d definitely go that route before a 7mm RM though.
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Really depends on how you look at it I guess. I was set on a 7 saum, but when I looked at what it cost to get good brass and dies it really wasn't that much difference if you're going to build. I read about guys getting similar performance out of factory 7 saums in model 7s but they seem like the few minority. The whole point of this build for me was to build a compact 7mm to hunt suppressed and still equal or pass my 7mm mag in performance. That mission has been accomplished. If I could do it over again I'd probably go with another inch on the pipe just to help out a bit with velocity.
I'm no expert by any means, but I feel like a 7mm 145 gr solid @ 3250 fps out of a 22" tube is impressive.
Well reading what Sherman says near 3000 is the goal with 195’s.
maybe 2950 is near 3000.
I can get 2850 with 195’s with my 7 saum with a 28” barrel without destroying brass.
The extra powder in 7 max isn’t accomplishing a lot at 2900 but I agree that at that speed it would probably be a fantastically stable load with excellent performance
If i cant get the velocity 190/195 w good accuracy than 180 class should get there. Im my research guys like the Berger 180s better for hunting.
Reason i built on a LA, easy cartridge change to a barrel burnin 28 Nosler LOL!
Reason i built on a LA, easy cartridge change to a barrel burnin 28 Nosler LOL!
Can anyone share any updates on load data for their Sherm Max? Currently in the process of trying to get a barrel built.
I had Garret Preece in Utah just build me a 7mm max and if I knew it would feed like crap I might not have gone with it in the BDL. I’m hoping to shoot the 180gr VLDH’s built it to wack pigs at 800yards at the ranch in south Texas. Rich told me they were having great results and speed with the Berger 175eol’s and the 180vldh’s with RL-23. So I think that’s what I’m gonna start with.
Wonder if I can modify the BDL box and follower to help with feeding issues?
Wonder if I can modify the BDL box and follower to help with feeding issues?
HS Precision DBM should be a direct replacement for BDL style bottom metal. My 7 max feeds no problem.
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Yes, i posted the MagnetoSpeed pic in the other thread. Ran them to 3003 FPS but settled on 2910 FPS. Just loaded up 3 charge weights. All shot sub .5 moa at 100. Settled on the lowest SD ES and took that load to a mile.
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