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Hunting
The Basics, Starting Out
25-06 REM and H4831/4350
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<blockquote data-quote="unclecroc" data-source="post: 2957985" data-attributes="member: 120941"><p>You watch for flat primers first and a shiny swipe on the back of the case head. The next stage of pressure is a stiff extraction of the case. If you hit this you've gone too far and need to back down. I don't think you'll pressure at 54 grains but every rifle is different. </p><p>A very efficient way to find a max charge with any given bullet, rifle combo is to start at the bottom and load up in .5 grain increments to the desired charge or until you find over pressure. While you don't need a chronograph it is definitely a worthwhile investment. </p><p>Once you find pressure, the group from your ladder will tell you a good indication of how well the combo will shoot. If you have a central cluster and a few outliers it will more than likely shoot ok. </p><p></p><p>For example if you start at 50 grains and load to 54 grains of h4350 in .5 grain increments one cartridge at a time and start to see ejector swipe at 53.5 grains stop and back off. Load a group at 52 and 52.5 and see how well they group. </p><p>This should give you a good baseline and some minor seating tuning or a primer change can shrink groups down if it doesn't shoot acceptable as is. </p><p></p><p>I hope this helps you. There are YouTube videos as well as very good reads on the internet explaining these loading methods and what to look for when finding pressure signs.</p></blockquote><p></p>
[QUOTE="unclecroc, post: 2957985, member: 120941"] You watch for flat primers first and a shiny swipe on the back of the case head. The next stage of pressure is a stiff extraction of the case. If you hit this you’ve gone too far and need to back down. I don’t think you’ll pressure at 54 grains but every rifle is different. A very efficient way to find a max charge with any given bullet, rifle combo is to start at the bottom and load up in .5 grain increments to the desired charge or until you find over pressure. While you don’t need a chronograph it is definitely a worthwhile investment. Once you find pressure, the group from your ladder will tell you a good indication of how well the combo will shoot. If you have a central cluster and a few outliers it will more than likely shoot ok. For example if you start at 50 grains and load to 54 grains of h4350 in .5 grain increments one cartridge at a time and start to see ejector swipe at 53.5 grains stop and back off. Load a group at 52 and 52.5 and see how well they group. This should give you a good baseline and some minor seating tuning or a primer change can shrink groups down if it doesn’t shoot acceptable as is. I hope this helps you. There are YouTube videos as well as very good reads on the internet explaining these loading methods and what to look for when finding pressure signs. [/QUOTE]
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The Basics, Starting Out
25-06 REM and H4831/4350
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