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<blockquote data-quote="Longtine88" data-source="post: 2299101" data-attributes="member: 116240">Small update before work caught up to me.&nbsp; So I was shooting some powder charges in .3 gr increments looking for pressure.I started at 0.040&quot; off lands cause I have another 300 wm and it liked it there and it was kinda in the middle and knowing I would probably end up working in 0.010&quot; increments from the lands anyways.22&quot; Proof w/ 5 port brakeH1000F215MADG New Brass215 HyrbridsSo H1000.....75.0 2757 2751 2749 2758. Cleaned after each shot to get started75.5 277975.8 277576.1 279376.4 279676.7 280277.0 281177.3 281377.6 283477.9 285478.2 285578.5 289378.8 2874 Primers starting to flatten more79.1 2875 Primers same as above79.4 2890 First sign of slight ejector mark.&nbsp; Stopped here.Something that puzzled me doing this pressure testing is the pattern of the bullets were all over.&nbsp; Like 6&quot; all over at 200 yards.&nbsp; This is the first rifle I have that did this to this extreme.&nbsp; Most stay within 3&quot; at that distance and some half that.So towards the end of the ladder I really think that 2850&#039; is where it is wanting to be right now until it speeds up.&nbsp;&nbsp; I think the shorter barrel is not burning up all the powder currently hence the erratic number swings towards the end and why pressure was so long showing up.So I cleaned it.....sent 3 fowlers down the tube.I then loaded up 4 @ 78.0 0.040&quot; off.&nbsp; 2866, 2871, 2870, 2869.&nbsp; Not bad looking at it huh.&nbsp; What you don&#039;t see because rain caught me was this 4 shots with an ES of 5 was a 6&quot; group at 200 yards.&nbsp; Spread all over and around the target.&nbsp;&nbsp; I checked the mounts, barrel contact and even the brake.&nbsp; All tight and snug.So I&#039;m bummed cause I&#039;m leaving for a trip tomorrow morning and will not be back until Monday and it&#039;s going to bother me all weekend.&nbsp; I will probably do some seating depth testing when I return before trying other powders and see where it wants to be.&nbsp; And guys it&#039;s not me.&nbsp;&nbsp; I went in and grabbed my 28 nosler and shot 3 in .65&quot; groups at 200 yards.&nbsp;&nbsp; So yes I even questioned my shooting form because it was such a short barrel.&nbsp; Ideas are welcome until I return Monday.</blockquote>

[QUOTE="Longtine88, post: 2299101, member: 116240"] Small update before work caught up to me. So I was shooting some powder charges in .3 gr increments looking for pressure. I started at 0.040" off lands cause I have another 300 wm and it liked it there and it was kinda in the middle and knowing I would probably end up working in 0.010" increments from the lands anyways. 22" Proof w/ 5 port brake H1000 F215M ADG New Brass 215 Hyrbrids So H1000..... 75.0 2757 2751 2749 2758. Cleaned after each shot to get started 75.5 2779 75.8 2775 76.1 2793 76.4 2796 76.7 2802 77.0 2811 77.3 2813 77.6 2834 77.9 2854 78.2 2855 78.5 2893 78.8 2874 Primers starting to flatten more 79.1 2875 Primers same as above 79.4 2890 First sign of slight ejector mark. Stopped here. Something that puzzled me doing this pressure testing is the pattern of the bullets were all over. Like 6" all over at 200 yards. This is the first rifle I have that did this to this extreme. Most stay within 3" at that distance and some half that. So towards the end of the ladder I really think that 2850' is where it is wanting to be right now until it speeds up. I think the shorter barrel is not burning up all the powder currently hence the erratic number swings towards the end and why pressure was so long showing up. So I cleaned it.....sent 3 fowlers down the tube. I then loaded up 4 @ 78.0 0.040" off. 2866, 2871, 2870, 2869. Not bad looking at it huh. What you don't see because rain caught me was this 4 shots with an ES of 5 was a 6" group at 200 yards. Spread all over and around the target. I checked the mounts, barrel contact and even the brake. All tight and snug. So I'm bummed cause I'm leaving for a trip tomorrow morning and will not be back until Monday and it's going to bother me all weekend. I will probably do some seating depth testing when I return before trying other powders and see where it wants to be. And guys it's not me. I went in and grabbed my 28 nosler and shot 3 in .65" groups at 200 yards. So yes I even questioned my shooting form because it was such a short barrel. Ideas are welcome until I return Monday. [/QUOTE]

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