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Rifles, Reloading, Optics, Equipment
Reloading
Quickload help 7mm-08
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<blockquote data-quote="ClaynTexas" data-source="post: 1095399" data-attributes="member: 90987"><p>Well I learned some things at the range today.</p><p></p><p>I had a quite a number of loads ready to try out (for about 3 months now actually) and I finally took a day off to do it. I had loads setup with Speer 130gr BTSP and IMR4064, IMR4166, RL17, and PowerPro 2000MR. I also had some setup with Hornady 162gr Amax's with the same 4 powders. I had ladder loaded from book minimum to book maximum with all of them. I had to interpolate for 4166 since I couldn't find exact data for what I was loading. I loaded 3 rounds of each powder weight increment and shot them as 3 shot groups.</p><p></p><p>The first thing of interest is that every single load, from starting load to max load, in all four powders using both bullets....flattened the primers. There was no cratering for most loads, only flattening. Only 4166 showed primer cratering at max loads. These were all loaded with WLR primers. I experienced the exact same thing with WSR primers in my 5.56 AR, but I knew beforehand that the WSR primers were soft. I haven't heard anything about WLRs being soft.</p><p></p><p>The second thing of interest is that all loads (from book min loads to book max loads) of IMR 4064 and IMR 4166 short stroked with both 130's and 162's. I tried different mags with no help. I didn't expect to see this. I thought 4064 would have been just the right speed for the rifle. There were no failures to extract or stovepipes, only short strokes. Accuracy with both was roughly 1" or a little better. For those interested, 4166 seems to show pressure signs way early.</p><p></p><p>The last thing of interest is that ALL loads (book min to book max) of RL17 and PowerPro 2000 functioned perfectly with both 130's and 162's. I expected both of these to be too slow to cycle effectively. Accuracy with both was roughly 1" or a little better, but with max loads the groups opened up a bit. At this point, I had run 120 rounds and it was probably much more me than the load or the rifle.</p><p></p><p>Next time I will try Varget, RL15, 748, and 4895. If what I saw today holds true, then 4895 should short stroke as well. I'm actually tempted to try Leverevolution or H380. I know some folks had had good results with Leverevolution in the 6.8 based wildcats.</p></blockquote><p></p>
[QUOTE="ClaynTexas, post: 1095399, member: 90987"] Well I learned some things at the range today. I had a quite a number of loads ready to try out (for about 3 months now actually) and I finally took a day off to do it. I had loads setup with Speer 130gr BTSP and IMR4064, IMR4166, RL17, and PowerPro 2000MR. I also had some setup with Hornady 162gr Amax's with the same 4 powders. I had ladder loaded from book minimum to book maximum with all of them. I had to interpolate for 4166 since I couldn't find exact data for what I was loading. I loaded 3 rounds of each powder weight increment and shot them as 3 shot groups. The first thing of interest is that every single load, from starting load to max load, in all four powders using both bullets....flattened the primers. There was no cratering for most loads, only flattening. Only 4166 showed primer cratering at max loads. These were all loaded with WLR primers. I experienced the exact same thing with WSR primers in my 5.56 AR, but I knew beforehand that the WSR primers were soft. I haven't heard anything about WLRs being soft. The second thing of interest is that all loads (from book min loads to book max loads) of IMR 4064 and IMR 4166 short stroked with both 130's and 162's. I tried different mags with no help. I didn't expect to see this. I thought 4064 would have been just the right speed for the rifle. There were no failures to extract or stovepipes, only short strokes. Accuracy with both was roughly 1" or a little better. For those interested, 4166 seems to show pressure signs way early. The last thing of interest is that ALL loads (book min to book max) of RL17 and PowerPro 2000 functioned perfectly with both 130's and 162's. I expected both of these to be too slow to cycle effectively. Accuracy with both was roughly 1" or a little better, but with max loads the groups opened up a bit. At this point, I had run 120 rounds and it was probably much more me than the load or the rifle. Next time I will try Varget, RL15, 748, and 4895. If what I saw today holds true, then 4895 should short stroke as well. I'm actually tempted to try Leverevolution or H380. I know some folks had had good results with Leverevolution in the 6.8 based wildcats. [/QUOTE]
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