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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
My perfect Wyoming Mountain rifle build thread
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<blockquote data-quote="codyadams" data-source="post: 2583321" data-attributes="member: 87243"><p>Ok, it took 10 pages, but finally got to shoot this awesome rifle! I decided to just mainly do a pressure test work up to see what velocity I would find pressure at, as well as to form brass, break the barrel in and get comfortable with the rifle. I did a workup with 215 Bergers as well as 212 eld-x's, though I was far more thorough with the 215's.</p><p></p><p>I will start by saying, DO NOT try this in your rifle without working up, I figured I would hit pressure way lower than I did, a combination of Dallas's chamber specs, the awesome Bat action, the virgin brass and probably this barrel ended up letting me load much higher than I initially planned. Here is what I ended up getting -</p><p></p><p>215 Berger Hybrid</p><p>Retumbo</p><p>GM215M</p><p>Virgin ADG</p><p>3.675" OAL with 1.593" bullet (~ .025 off)</p><p>Virgin 20" Bartlien 1-8 twist carbon</p><p></p><p>78.0 - 2535</p><p>78.5 - 2586</p><p>79.0 - 2606</p><p>79.5 - 2625</p><p>80.0 - 2650</p><p>80.5 - 2655</p><p>81.0 - 2686</p><p>81.5 - 2693</p><p>82.0 - 2716</p><p>82.5 - 2738</p><p>83.0 - 2777</p><p>83.5 - 2787</p><p>84.0 - 2794</p><p>84.3 - 2819</p><p>84.6 - 2843</p><p>84.9 - 2843</p><p>85.2 - 2854</p><p>85.5 - 2871</p><p>85.8 - 2875</p><p>86.1 - 2884</p><p>86.4 - 2905</p><p>86.7 - 2915</p><p>87.0 - 2932</p><p>87.3 - 2941</p><p>87.6 - 2969</p><p>87.9 - 2946</p><p>88.2 - 2992</p><p></p><p>Never once did I get any change whatsoever in bolt lift, never any clickers, it was smooth as butter. I did get very, very faint ejector marks towards the end, you will see in the pics, and finally one that was a little bit more plain to see on the 88.2 load. However, none of the ejector marks had a swipe or smear. I do think a combination of the Bat action and virgin brass is hiding some pressure, so I plan on running one piece of brass in the upper range until I loose the primer pocket to try to get an idea where that threshold is.</p><p></p><p>On a separate note, this rifle is sweet to shoot. While there is significant recoil, it is a soft shove and very manageable. I probably won't be spotting shots, but it is still pleasant to shoot! And the action.....oh man, the action.....incredibly buttery smooth.</p><p></p><p>In order as they are pictured below, these are 87.6, 87.9, and 88.2 grains</p><p></p><p>[ATTACH=full]381833[/ATTACH][ATTACH=full]381834[/ATTACH][ATTACH=full]381835[/ATTACH]</p></blockquote><p></p>
[QUOTE="codyadams, post: 2583321, member: 87243"] Ok, it took 10 pages, but finally got to shoot this awesome rifle! I decided to just mainly do a pressure test work up to see what velocity I would find pressure at, as well as to form brass, break the barrel in and get comfortable with the rifle. I did a workup with 215 Bergers as well as 212 eld-x's, though I was far more thorough with the 215's. I will start by saying, DO NOT try this in your rifle without working up, I figured I would hit pressure way lower than I did, a combination of Dallas's chamber specs, the awesome Bat action, the virgin brass and probably this barrel ended up letting me load much higher than I initially planned. Here is what I ended up getting - 215 Berger Hybrid Retumbo GM215M Virgin ADG 3.675" OAL with 1.593" bullet (~ .025 off) Virgin 20" Bartlien 1-8 twist carbon 78.0 - 2535 78.5 - 2586 79.0 - 2606 79.5 - 2625 80.0 - 2650 80.5 - 2655 81.0 - 2686 81.5 - 2693 82.0 - 2716 82.5 - 2738 83.0 - 2777 83.5 - 2787 84.0 - 2794 84.3 - 2819 84.6 - 2843 84.9 - 2843 85.2 - 2854 85.5 - 2871 85.8 - 2875 86.1 - 2884 86.4 - 2905 86.7 - 2915 87.0 - 2932 87.3 - 2941 87.6 - 2969 87.9 - 2946 88.2 - 2992 Never once did I get any change whatsoever in bolt lift, never any clickers, it was smooth as butter. I did get very, very faint ejector marks towards the end, you will see in the pics, and finally one that was a little bit more plain to see on the 88.2 load. However, none of the ejector marks had a swipe or smear. I do think a combination of the Bat action and virgin brass is hiding some pressure, so I plan on running one piece of brass in the upper range until I loose the primer pocket to try to get an idea where that threshold is. On a separate note, this rifle is sweet to shoot. While there is significant recoil, it is a soft shove and very manageable. I probably won't be spotting shots, but it is still pleasant to shoot! And the action.....oh man, the action.....incredibly buttery smooth. In order as they are pictured below, these are 87.6, 87.9, and 88.2 grains [ATTACH type="full" alt="20220724_193647.jpg"]381833[/ATTACH][ATTACH type="full" alt="20220724_193630.jpg"]381834[/ATTACH][ATTACH type="full" alt="20220724_193613.jpg"]381835[/ATTACH] [/QUOTE]
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My perfect Wyoming Mountain rifle build thread
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