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Rifles, Reloading, Optics, Equipment
Reloading
Pressures and such...??
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<blockquote data-quote="big wally" data-source="post: 721840" data-attributes="member: 57995"><p>Any load data you get from a book or a friend even if they have an identicle rifle/powder/primer bullet/coal is a bomb waiting to blow your gun and yourself to bits IT IS ONLY SAFE IN THE GUN IT WAS WORKED UP IN AND NO OTHER. YOU MUST start as low as you can and work up slowly watching for any signes of pressure and act accordingly.</p><p>No gun made can have the identicle chamber size /throat dimentions/ freebore and who knows what the powder scales are doing for you most are accurate when new but unless you have weights for the charge you are using its guesswork .</p><p>I use Viht 120 for a 17A/Hornet and run at 3,650ft/sec w ith a 20gr pill.</p><p>My first batch/lot of powder used 10.8gr for that velocity but my second batch/lot needed 11.4gr for the same velocity my current batch/lot uses11.0 gr for same velocity.</p><p>If i had started with the second batch(11.4gr )and loaded that ammount of the first batch into the case it would have scrapped the gun and me but i used my head and start at least 10% down on any componant change.</p><p>That ammount of charge difference is nothing in the larger cases that most of you seem to use and i dare say that some of you go up in 0.5gr incruments or more but believe me in 17A/H case you need to go up in 0.1gr and no more</p><p> </p><p>A good tip for safty is next time you see that same chap on the line pack up and go home.</p><p>YOU KNOW IT MAKES SENSE</p><p>Big (safe )wally</p></blockquote><p></p>
[QUOTE="big wally, post: 721840, member: 57995"] Any load data you get from a book or a friend even if they have an identicle rifle/powder/primer bullet/coal is a bomb waiting to blow your gun and yourself to bits IT IS ONLY SAFE IN THE GUN IT WAS WORKED UP IN AND NO OTHER. YOU MUST start as low as you can and work up slowly watching for any signes of pressure and act accordingly. No gun made can have the identicle chamber size /throat dimentions/ freebore and who knows what the powder scales are doing for you most are accurate when new but unless you have weights for the charge you are using its guesswork . I use Viht 120 for a 17A/Hornet and run at 3,650ft/sec w ith a 20gr pill. My first batch/lot of powder used 10.8gr for that velocity but my second batch/lot needed 11.4gr for the same velocity my current batch/lot uses11.0 gr for same velocity. If i had started with the second batch(11.4gr )and loaded that ammount of the first batch into the case it would have scrapped the gun and me but i used my head and start at least 10% down on any componant change. That ammount of charge difference is nothing in the larger cases that most of you seem to use and i dare say that some of you go up in 0.5gr incruments or more but believe me in 17A/H case you need to go up in 0.1gr and no more A good tip for safty is next time you see that same chap on the line pack up and go home. YOU KNOW IT MAKES SENSE Big (safe )wally [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
Pressures and such...??
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