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Rifles, Reloading, Optics, Equipment
Reloading
Volocity change vrs. seating depth.
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<blockquote data-quote="jmason" data-source="post: 259741" data-attributes="member: 10486"><p>In my very limited experience with a 270 and the same powder your using; you will gain very little speed with seating changes. I recently did some seating tests with 140 grain BTs and shot 5 rounds at each depth starting form touching to .025 off. There appeared to be no avg speed change over the over the spectrum of these 25 rounds. I'd also like to think your leaving a little velocity on the table with your 130s. In my particular rifle I was able to reach near 3100 fps safely with a 140 gr bullet. I did not have consistent ES/SDs up there though. I found decent es/sd at an avg mv of 2969fps.</p></blockquote><p></p>
[QUOTE="jmason, post: 259741, member: 10486"] In my very limited experience with a 270 and the same powder your using; you will gain very little speed with seating changes. I recently did some seating tests with 140 grain BTs and shot 5 rounds at each depth starting form touching to .025 off. There appeared to be no avg speed change over the over the spectrum of these 25 rounds. I'd also like to think your leaving a little velocity on the table with your 130s. In my particular rifle I was able to reach near 3100 fps safely with a 140 gr bullet. I did not have consistent ES/SDs up there though. I found decent es/sd at an avg mv of 2969fps. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Volocity change vrs. seating depth.
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