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Rifles, Reloading, Optics, Equipment
Reloading
243 Ackley and H4350?
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<blockquote data-quote="westcliffe01" data-source="post: 815771" data-attributes="member: 35183"><p>If using Hodgdon powder, first place to visit is the manufacturers website:</p><p><a href="http://data.hodgdon.com/cartridge_load.asp" target="_blank">Cartridge Loads - Hodgdon Reloading Data Center - data.hodgdon.com</a></p><p></p><p>For the regular 243 with a 100gr bullet the load listed is from 37-40gr. With an AI the usual rule is that it may take up to 10% more powder, particularly if the bullet is seated long.</p><p></p><p>Another good source is <a href="http://www.6mmbr.com/243Win.html" target="_blank">.243 Win + .243 AI Cartridge Guide</a></p><p></p><p>They list ackley loads, but beware that many of the loads listed are very hot and with long seated bullets.</p><p></p><p>4350 is a good powder for the 243 and 243AI You will see that the loads on 6mmbr do not get to the 243AI+10% level, but are rather just a grain or 2 more.</p><p></p><p>I was unable to get a decent amount of 4350 which is why I am using H100V (which is relatively easy to get) and I will just have to see how consistent it is over different temperatures. I have a bunch of superformance powder which I bought by mistake and I will be trying that also. These are all relatively slow powders.</p><p></p><p>I would never start with a Min load. Rather start in the middle or even directly at 39gr. When I worked up my fireforming load, I started directly with 41gr of H100V which is the max load in the parent cartridge. Because of the expansion of the brass the pressure peaks out lower than in a regular chamber and this load has shot 1/2 moa for me.</p></blockquote><p></p>
[QUOTE="westcliffe01, post: 815771, member: 35183"] If using Hodgdon powder, first place to visit is the manufacturers website: [URL="http://data.hodgdon.com/cartridge_load.asp"]Cartridge Loads - Hodgdon Reloading Data Center - data.hodgdon.com[/URL] For the regular 243 with a 100gr bullet the load listed is from 37-40gr. With an AI the usual rule is that it may take up to 10% more powder, particularly if the bullet is seated long. Another good source is [URL="http://www.6mmbr.com/243Win.html"].243 Win + .243 AI Cartridge Guide[/URL] They list ackley loads, but beware that many of the loads listed are very hot and with long seated bullets. 4350 is a good powder for the 243 and 243AI You will see that the loads on 6mmbr do not get to the 243AI+10% level, but are rather just a grain or 2 more. I was unable to get a decent amount of 4350 which is why I am using H100V (which is relatively easy to get) and I will just have to see how consistent it is over different temperatures. I have a bunch of superformance powder which I bought by mistake and I will be trying that also. These are all relatively slow powders. I would never start with a Min load. Rather start in the middle or even directly at 39gr. When I worked up my fireforming load, I started directly with 41gr of H100V which is the max load in the parent cartridge. Because of the expansion of the brass the pressure peaks out lower than in a regular chamber and this load has shot 1/2 moa for me. [/QUOTE]
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243 Ackley and H4350?
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