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Rifles, Reloading, Optics, Equipment
Reloading
IMR 8133 .338 Edge
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<blockquote data-quote="701_outback" data-source="post: 1783248" data-attributes="member: 112364"><p>Hello, long time looker first time post.</p><p></p><p>I searched on this issue and could not find anyone posting about the same problems I was having so I will share my story. </p><p></p><p>I inherited a "built" 700 Remington chambered in .338 RUM that was not new but very well taken care by my Dad, he had some health problems and gave me the gun. I had it reamed to .338 Edge by Joel Ackerman in ND. </p><p></p><p>I Resized .300 RUM brass, 300 grain SMK and tried to start low with the charge from what I had be reading was working. I shot 89.5 grains of H1000 and 90 grains of Retumbo. Both of these shot over pressure in this gun. H1000 left major ejector marks and a noticeably hard bolt to open, first shot on Retumbo was same, second on retumbo separated the case. But H1000 shot a really good group and retumbo was..eeehhhhhh. </p><p></p><p>So in reading I couldn't find much on the .338 edge and other powders. I found some IMR 8133 at the local running and got that. I built a ladder starting at 90gr to 97gr moving up one grain per bullet and was going to find where pressure started and pull the rest of the bullets back out that would be too hot. I headed to the range and shot all 8 rounds with ZERO pressure signs that I had from Retumbo and H1000. Weather has not been the best for the chronograph so I could not get speed readings for all bullets tested, I will post what I got below this speech. </p><p></p><p>IMR 8133 definitely cured my issues for pressure. All 8 shots stayed in about an 1" group at 100 yards which I found interesting. It meters very nicely and hopefully is a temp stable as stated. I am going to put some more bullets together to see grouping using a charge to get the average speed of where Shawn C. Is shooting 300gr SMK's and load a couple up that are shooting faster to see what that looks like. This was a long read but hopefully some guys out there having the pressure issues I was will find hope. </p><p></p><p>Remington 700</p><p>30" Krieger Barrel 1-10</p><p>Necked up .300 RUM Remington brass</p><p>Federal 215 primers </p><p>SMK 300 gr bullets </p><p></p><p>IMR 8133 - No Pressure signs </p><p></p><p>90gr - 2688 FPS</p><p>91gr - 2721 FPS </p><p>92gr - 2754 FPS </p><p>93gr - 2812 FPS</p><p>94gr - 2836 FPS </p><p>95gr - 2836 FPS </p><p>96gr - 2886 FPS</p><p>97gr - 2885 FPS</p><p></p><p>H1000 </p><p></p><p>89.5gr - No speed HEAVY bolt, ejector marks. 5 shot group in .794" </p><p></p><p>Retumbo </p><p></p><p>90gr - No speed heavy bolt, ejector mark, separated case on second shot. </p><p></p><p>Stay tuned....</p></blockquote><p></p>
[QUOTE="701_outback, post: 1783248, member: 112364"] Hello, long time looker first time post. I searched on this issue and could not find anyone posting about the same problems I was having so I will share my story. I inherited a “built” 700 Remington chambered in .338 RUM that was not new but very well taken care by my Dad, he had some health problems and gave me the gun. I had it reamed to .338 Edge by Joel Ackerman in ND. I Resized .300 RUM brass, 300 grain SMK and tried to start low with the charge from what I had be reading was working. I shot 89.5 grains of H1000 and 90 grains of Retumbo. Both of these shot over pressure in this gun. H1000 left major ejector marks and a noticeably hard bolt to open, first shot on Retumbo was same, second on retumbo separated the case. But H1000 shot a really good group and retumbo was..eeehhhhhh. So in reading I couldn’t find much on the .338 edge and other powders. I found some IMR 8133 at the local running and got that. I built a ladder starting at 90gr to 97gr moving up one grain per bullet and was going to find where pressure started and pull the rest of the bullets back out that would be too hot. I headed to the range and shot all 8 rounds with ZERO pressure signs that I had from Retumbo and H1000. Weather has not been the best for the chronograph so I could not get speed readings for all bullets tested, I will post what I got below this speech. IMR 8133 definitely cured my issues for pressure. All 8 shots stayed in about an 1” group at 100 yards which I found interesting. It meters very nicely and hopefully is a temp stable as stated. I am going to put some more bullets together to see grouping using a charge to get the average speed of where Shawn C. Is shooting 300gr SMK’s and load a couple up that are shooting faster to see what that looks like. This was a long read but hopefully some guys out there having the pressure issues I was will find hope. Remington 700 30” Krieger Barrel 1-10 Necked up .300 RUM Remington brass Federal 215 primers SMK 300 gr bullets IMR 8133 - No Pressure signs 90gr - 2688 FPS 91gr - 2721 FPS 92gr - 2754 FPS 93gr - 2812 FPS 94gr - 2836 FPS 95gr - 2836 FPS 96gr - 2886 FPS 97gr - 2885 FPS H1000 89.5gr - No speed HEAVY bolt, ejector marks. 5 shot group in .794” Retumbo 90gr - No speed heavy bolt, ejector mark, separated case on second shot. Stay tuned.... [/QUOTE]
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IMR 8133 .338 Edge
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