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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hammer Bullets Pressure Testing Results
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<blockquote data-quote="Calvin45" data-source="post: 2832673" data-attributes="member: 109862"><p>I've treated my 75 grain 257 hammers with hex boron nitride haha. Would that mean I need to find ways to get the pressure back up at this point? <img class="smilie smilie--emoji" loading="lazy" alt="😁" title="Beaming face with smiling eyes :grin:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f601.png" data-shortname=":grin:" />. </p><p></p><p>I appreciate you not flinching to say that a) this hammer phenomenon is real and demonstrable but also that b) it's not somehow unique to hammer bullets. As the saying goes, there's more than one way to skin a cat (my wife actually hadn't heard that saying before she married me, first time I said it she looks at me horrified like I'm a psycho and asks "why are you skinning cats!!!!????" <img class="smilie smilie--emoji" loading="lazy" alt="🤣" title="Rolling on the floor laughing :rofl:" src="https://cdn.jsdelivr.net/joypixels/assets/8.0/png/unicode/64/1f923.png" data-shortname=":rofl:" />) </p><p></p><p>Short bearing surface overall absolutely affects pressure. And even with no grooves or bore rider or any such thing, the relatively short surfaced 120 Barnes tac tx treated with hbn does about the same things that the 124 hammer hunter is touted to be capable of out when Barnes "aren't supposed to be able to". </p><p></p><p>BUT I will say unequivocally there does seem to be something to the hammer design (or maybe it's the copper alloy) that is MUCH more forgiving of ludicrously high RPMs - as in shorter lighter bullets being driven to warp speed in barrels twisted for much longer heavier pills - than has been true of any Barnes bullet</p><p></p><p>Edit: by "forgiving" I mean accuracy wise. Hammers are about the least sensitive to seating depth variation AND least susceptible to degradation of accuracy from "overstabilization" that I've ever seen. I know overstabilization is a contentious term, and I don't know how real or proven it is either but I do know that as a rule I've never seen all that good of accuracy from lighter or shorter bullets out of magnum cartridges with aggressive twists for said bullets requirements…hammers do play different there.</p></blockquote><p></p>
[QUOTE="Calvin45, post: 2832673, member: 109862"] I’ve treated my 75 grain 257 hammers with hex boron nitride haha. Would that mean I need to find ways to get the pressure back up at this point? 😁. I appreciate you not flinching to say that a) this hammer phenomenon is real and demonstrable but also that b) it’s not somehow unique to hammer bullets. As the saying goes, there’s more than one way to skin a cat (my wife actually hadn’t heard that saying before she married me, first time I said it she looks at me horrified like I’m a psycho and asks “why are you skinning cats!!!!????” 🤣) Short bearing surface overall absolutely affects pressure. And even with no grooves or bore rider or any such thing, the relatively short surfaced 120 Barnes tac tx treated with hbn does about the same things that the 124 hammer hunter is touted to be capable of out when Barnes “aren’t supposed to be able to”. BUT I will say unequivocally there does seem to be something to the hammer design (or maybe it’s the copper alloy) that is MUCH more forgiving of ludicrously high RPMs - as in shorter lighter bullets being driven to warp speed in barrels twisted for much longer heavier pills - than has been true of any Barnes bullet Edit: by “forgiving” I mean accuracy wise. Hammers are about the least sensitive to seating depth variation AND least susceptible to degradation of accuracy from “overstabilization” that I’ve ever seen. I know overstabilization is a contentious term, and I don’t know how real or proven it is either but I do know that as a rule I’ve never seen all that good of accuracy from lighter or shorter bullets out of magnum cartridges with aggressive twists for said bullets requirements…hammers do play different there. [/QUOTE]
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Hammer Bullets Pressure Testing Results
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