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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
7mm sherman max
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<blockquote data-quote="seekoutside" data-source="post: 1999900" data-attributes="member: 86554"><p>I really think that 22" is the sweet spot for a hunting rifle, especially with a supressor. I should note that these badlands bullets seem to be much more pressure sensitive. I had to give up some speed by using them. Im @ 3250 fps sitting 80 thou off that lands. Hammer bullets could be seated closer and I did not see the pressure sensitivity, but their BC was much lower. So I don't think it's unreasonable to assume that 3300 fps is doable with a 22" tube with the right bullet/load.</p><p></p><p>I'm at 69 gr even of RL26 and thats up there in pressure. I had a single digit node starting at 69 up to 69.3. At 69.5 I started seeing some pressure, significant pressure after a 3 shot string. I wont even shoot this load above 60 or 65 degrees air temp with RL 26. So I do think you might have to run these shermans hard if you want the speed in a shorter barrel. But that's the reason I went 7 max over a 7 saum. I wanted speed out of a short barrel and while I hear of 7 SAUMS getting similar performance to me, it seemed like it wasn't the norm and most guys were getting in that 3100 fps range. Since good brass and good dies really werent that much cheaper for a saum i figured I had better odds of getting the performance I wanted out of sherman max for minimal more $$ invested. I feel as if my bet paid off. I'd have to build a 7 saum to be positive though... which will happen sooner or later.</p><p></p><p>My next build is a 6 SST and I went 21" for the tube and I expect to shoot 100 grainers around 3400 fps with a moderate pressure load.</p></blockquote><p></p>
[QUOTE="seekoutside, post: 1999900, member: 86554"] I really think that 22" is the sweet spot for a hunting rifle, especially with a supressor. I should note that these badlands bullets seem to be much more pressure sensitive. I had to give up some speed by using them. Im @ 3250 fps sitting 80 thou off that lands. Hammer bullets could be seated closer and I did not see the pressure sensitivity, but their BC was much lower. So I don't think it's unreasonable to assume that 3300 fps is doable with a 22" tube with the right bullet/load. I'm at 69 gr even of RL26 and thats up there in pressure. I had a single digit node starting at 69 up to 69.3. At 69.5 I started seeing some pressure, significant pressure after a 3 shot string. I wont even shoot this load above 60 or 65 degrees air temp with RL 26. So I do think you might have to run these shermans hard if you want the speed in a shorter barrel. But that's the reason I went 7 max over a 7 saum. I wanted speed out of a short barrel and while I hear of 7 SAUMS getting similar performance to me, it seemed like it wasn't the norm and most guys were getting in that 3100 fps range. Since good brass and good dies really werent that much cheaper for a saum i figured I had better odds of getting the performance I wanted out of sherman max for minimal more $$ invested. I feel as if my bet paid off. I'd have to build a 7 saum to be positive though... which will happen sooner or later. My next build is a 6 SST and I went 21" for the tube and I expect to shoot 100 grainers around 3400 fps with a moderate pressure load. [/QUOTE]
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7mm sherman max
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