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Rifles, Reloading, Optics, Equipment
Reloading
The first sign of excessive pressure is...
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<blockquote data-quote="jimbires" data-source="post: 285156" data-attributes="member: 11011"><p>the article is very informative . it sure gives me more to think about . I feel like the rug was pulled out from under me . LOL I have noticed that it is hard to measure tenths on the case head , you have to be really on your game . I made a little block of wood to hold the case so I had both hands free . </p><p> I don't want to hijack the thread but this is what the original guy was asking and this info should or could help him too . you said you look at velocity as your primary pressure indicator , and I see your point of view . I've been playing with a 300 wby so it's still fresh in my head , and I have all my notes yet . I'm using a nosler ballistic tip 180 grain , with H1000 powder . my Nosler book says that starting load is 85.0 @ 3012 fps , and max load is 89.0 @ 3146 fps . I've found a node at 87.8 that shoots about .5" @100, and good extreme spread . it shows nice pressure signs . primer looks good . I'm using winchester mag primer ,I can get them easier . bolt works good . case head expansion is about .0003 . I use a chrony beta ,but my velocity is 3170 fps . by your method this load is too hot , because I have exceeded the book max velocity with a lesser amount of powder . am I correct ? I have not shot any of the brass cases enough to find the point of primer pocket stretch . thanks Jim</p></blockquote><p></p>
[QUOTE="jimbires, post: 285156, member: 11011"] the article is very informative . it sure gives me more to think about . I feel like the rug was pulled out from under me . LOL I have noticed that it is hard to measure tenths on the case head , you have to be really on your game . I made a little block of wood to hold the case so I had both hands free . I don't want to hijack the thread but this is what the original guy was asking and this info should or could help him too . you said you look at velocity as your primary pressure indicator , and I see your point of view . I've been playing with a 300 wby so it's still fresh in my head , and I have all my notes yet . I'm using a nosler ballistic tip 180 grain , with H1000 powder . my Nosler book says that starting load is 85.0 @ 3012 fps , and max load is 89.0 @ 3146 fps . I've found a node at 87.8 that shoots about .5" @100, and good extreme spread . it shows nice pressure signs . primer looks good . I'm using winchester mag primer ,I can get them easier . bolt works good . case head expansion is about .0003 . I use a chrony beta ,but my velocity is 3170 fps . by your method this load is too hot , because I have exceeded the book max velocity with a lesser amount of powder . am I correct ? I have not shot any of the brass cases enough to find the point of primer pocket stretch . thanks Jim [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
The first sign of excessive pressure is...
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