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The Range
Ammo & Reloading
Reloading velocity calculator?
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<blockquote data-quote="swampratt" data-source="post: 3640158" data-attributes="member: 15054"><p>Barrel ID and groove depth and how many grooves and roughness of the inside of the barrel all play a role in pressure and velocity.</p><p>I have a Ruger .308 with 22" barrel that has velocity within a few FPS as a Savage .308 I have with an 18" barrel.</p><p>When using IMR4064 powder.</p><p>Slow barrel Ruger or fast savage.</p><p></p><p>As we also know lot variance of powder and bullet diameter or hardness along with case capacity will also change things up.</p><p></p><p>If you are searching for more velocity and or more accuracy do your own testing with the components you have at hand.</p><p>Look for pressure signs.</p><p></p><p>Many of the 30-06 loads listed are not what a modern 30-06 will max out at.</p><p>I like accurate loads and some bullets have an appetite for velocity while others are happy chugging along.</p><p></p><p>Sierra Palma 155 gr in .308 diameter really liked to be "Hot Rodded" to get into the upper accuracy node in my .308 and my 30-06.</p><p>3176 fps from my 30-06 100 degree temps and no pressure issues at that point.</p><p></p><p>I did load it to 3200 fps and got a sticky bolt lift the same 100 degree day. 22" barrel</p><p>With a strong gun you will be surprised what a 45 acp can do.</p><p></p><p>I do not think a calculator unless you have many parameters to input will tell you what your particular gun and lot number of powder will do.</p><p></p><p>I have some older (metal Can)2400 powder and some newer 2400 and I must load 2 gr more of the older stuff for 170 gr cast 30-30 loads.</p><p></p><p>Older H4350 looks NOTHING like the newer powder. Long dark grey sticks in the older stuff and short green sticks in the newer powder.</p><p></p><p>Guarantee the loads are not the same.</p></blockquote><p></p>
[QUOTE="swampratt, post: 3640158, member: 15054"] Barrel ID and groove depth and how many grooves and roughness of the inside of the barrel all play a role in pressure and velocity. I have a Ruger .308 with 22" barrel that has velocity within a few FPS as a Savage .308 I have with an 18" barrel. When using IMR4064 powder. Slow barrel Ruger or fast savage. As we also know lot variance of powder and bullet diameter or hardness along with case capacity will also change things up. If you are searching for more velocity and or more accuracy do your own testing with the components you have at hand. Look for pressure signs. Many of the 30-06 loads listed are not what a modern 30-06 will max out at. I like accurate loads and some bullets have an appetite for velocity while others are happy chugging along. Sierra Palma 155 gr in .308 diameter really liked to be "Hot Rodded" to get into the upper accuracy node in my .308 and my 30-06. 3176 fps from my 30-06 100 degree temps and no pressure issues at that point. I did load it to 3200 fps and got a sticky bolt lift the same 100 degree day. 22" barrel With a strong gun you will be surprised what a 45 acp can do. I do not think a calculator unless you have many parameters to input will tell you what your particular gun and lot number of powder will do. I have some older (metal Can)2400 powder and some newer 2400 and I must load 2 gr more of the older stuff for 170 gr cast 30-30 loads. Older H4350 looks NOTHING like the newer powder. Long dark grey sticks in the older stuff and short green sticks in the newer powder. Guarantee the loads are not the same. [/QUOTE]
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