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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Hammer Hunter 375 Cal 395 wt first taste
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<blockquote data-quote="royinidaho" data-source="post: 1194484" data-attributes="member: 2011"><p>I'm going to have to figure out how to find the rifling with the bullet. I have no idea of how much jump I am running. The difficulty for me is I will have to change from my usual method of dremeling two slots in the neck and getting the correct neck tension then letting the bolt seat the bullet against the rifling.</p><p></p><p>That doesn't work with these Hammer offerings at least in my 375 AM.</p><p></p><p>First the ogive is at such an angle, if that is the proper terminology, that the bullet sticks in the bore.</p><p></p><p>Second I have a bushing sizing die which is perfect for swaged bullets and even the CEBs. But the Hammer parabolic bands don't provide a full neck length of bearing surface.</p><p></p><p>Possibly a bushing adjustment is appropriate?</p><p></p><p>However, it is a unique sensation when the bands are felt passing through the neck when the bullet is seated.</p><p></p><p>I also had some problems on a few cases when the bullet eased out from the seating depth due to compressed loads. This is a good thing, as the brass I'm using is noted for uneven neck thickness. The variation in neck thickness is easier to feel by inserting a bullet in a fired case that attempting to measure it. It's making case sorting a bit more fun.</p><p></p><p>With proper necks compressed loads are not a problem.</p><p></p><p>When fired the cartridges with the compressed load seating length variations still maintained group size. Figure that one out. Also ESs were low. Even more wonder.</p><p></p><p>After that first 3 shot group, three more shots at different targets plus a shot at my expansion test media each landed within 1 inch of POA @ 300. I'm thinking the cost of the bullets will be worth it if I can begin shooting 1 shot groups. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /> If I can keep 0.375" groups within 0.3 MOA of POA I'll be a happy old fart.</p><p></p><p>I did the first 300 yard expansion test this evening. I left my iPhone laying around somewhere thus have no pics. I'll post results tomorrow when I track that sucker down.</p><p></p><p>What I can say though is the ThhWoommpp when that 395 HH went over the MagnetoSpeed at 3034 FPS and hit that 12" diameter X 24" length piece of irrigation mainline @ 300 yards, filled with soaking wet Canadian peat moss was quite a sound.</p><p></p><p>All major pieces of the bullet that I could find, 257 grains worth, travelled a full 18" in the media which matches any other bullet I've fired into it at that distance. That would be except for some not to be named 252 gr 338 aluminum tipped offerings that didn't open up.</p></blockquote><p></p>
[QUOTE="royinidaho, post: 1194484, member: 2011"] I'm going to have to figure out how to find the rifling with the bullet. I have no idea of how much jump I am running. The difficulty for me is I will have to change from my usual method of dremeling two slots in the neck and getting the correct neck tension then letting the bolt seat the bullet against the rifling. That doesn't work with these Hammer offerings at least in my 375 AM. First the ogive is at such an angle, if that is the proper terminology, that the bullet sticks in the bore. Second I have a bushing sizing die which is perfect for swaged bullets and even the CEBs. But the Hammer parabolic bands don't provide a full neck length of bearing surface. Possibly a bushing adjustment is appropriate? However, it is a unique sensation when the bands are felt passing through the neck when the bullet is seated. I also had some problems on a few cases when the bullet eased out from the seating depth due to compressed loads. This is a good thing, as the brass I'm using is noted for uneven neck thickness. The variation in neck thickness is easier to feel by inserting a bullet in a fired case that attempting to measure it. It's making case sorting a bit more fun. With proper necks compressed loads are not a problem. When fired the cartridges with the compressed load seating length variations still maintained group size. Figure that one out. Also ESs were low. Even more wonder. After that first 3 shot group, three more shots at different targets plus a shot at my expansion test media each landed within 1 inch of POA @ 300. I'm thinking the cost of the bullets will be worth it if I can begin shooting 1 shot groups. :) If I can keep 0.375" groups within 0.3 MOA of POA I'll be a happy old fart. I did the first 300 yard expansion test this evening. I left my iPhone laying around somewhere thus have no pics. I'll post results tomorrow when I track that sucker down. What I can say though is the ThhWoommpp when that 395 HH went over the MagnetoSpeed at 3034 FPS and hit that 12" diameter X 24" length piece of irrigation mainline @ 300 yards, filled with soaking wet Canadian peat moss was quite a sound. All major pieces of the bullet that I could find, 257 grains worth, travelled a full 18" in the media which matches any other bullet I've fired into it at that distance. That would be except for some not to be named 252 gr 338 aluminum tipped offerings that didn't open up. [/QUOTE]
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Hammer Hunter 375 Cal 395 wt first taste
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