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Long Range Hunting & Shooting
375 RUM Build
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<blockquote data-quote="jw375" data-source="post: 1720291" data-attributes="member: 92245"><p>Finding peak pressure for the 375 RUM +P is going to have everything to do with which bullet you decide to go with. In my 375 RUM+P I found the 350gr SMK to hit that mark faster than the 329 Hammers. My opinion and in speaking directly to Sierra about this subject, that has to do with the jacket of the SMK and how it interacts with the rifling. There a ton of torque there. The hammers are definitely less. Some of that having to do with the bullet weighing less, but most I believe is in the design of the bullet. The Hammer, even though it's not as slippery, can just be pushed harder and faster. Thst will make up for some of the BC loss. That being said, I have shot 101gr of Retumbo behind a 350 SMK and didn't see any ejector marks. Still hard on the brass though. Myself, I don't like pushing my brass hard. It's part of the reason I'm ok with buying more expensive hammer bullets.</p></blockquote><p></p>
[QUOTE="jw375, post: 1720291, member: 92245"] Finding peak pressure for the 375 RUM +P is going to have everything to do with which bullet you decide to go with. In my 375 RUM+P I found the 350gr SMK to hit that mark faster than the 329 Hammers. My opinion and in speaking directly to Sierra about this subject, that has to do with the jacket of the SMK and how it interacts with the rifling. There a ton of torque there. The hammers are definitely less. Some of that having to do with the bullet weighing less, but most I believe is in the design of the bullet. The Hammer, even though it’s not as slippery, can just be pushed harder and faster. Thst will make up for some of the BC loss. That being said, I have shot 101gr of Retumbo behind a 350 SMK and didn’t see any ejector marks. Still hard on the brass though. Myself, I don’t like pushing my brass hard. It’s part of the reason I’m ok with buying more expensive hammer bullets. [/QUOTE]
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