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The Range
Ammo & Reloading
Different references, different data?
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<blockquote data-quote="Rustygun" data-source="post: 3604677" data-attributes="member: 4711"><p>I have run into the same issues with conflicting data from two sources. I have found that sometimes a small varation in the gun they used to test (some handgun rounds are tested with a 10” barrel). Sometimes the bullet type (FMJ, lead, plated) or diameter is slightly different (.355” and .356” for 9mm) which increases pressure fast. Also bullet seating depth can vary enough to increase pressures so the powder charge is less. </p><p></p><p>I usually take a middle of the road data point & shoot it over my chronograph and look for pressure signs like flat primers or cases that seem to stick in a cylinder (on 38/357) or split cases mouths. I will ramp the load up from there. </p><p></p><p>As to compatibility in rifles that I don’t know but logic says if it is safe in a pistol it should be safe in a rifle. I think one of my books shows specific rifle data, and I think the hogdens web site shows rifle data for handgun rounds.</p></blockquote><p></p>
[QUOTE="Rustygun, post: 3604677, member: 4711"] I have run into the same issues with conflicting data from two sources. I have found that sometimes a small varation in the gun they used to test (some handgun rounds are tested with a 10” barrel). Sometimes the bullet type (FMJ, lead, plated) or diameter is slightly different (.355” and .356” for 9mm) which increases pressure fast. Also bullet seating depth can vary enough to increase pressures so the powder charge is less. I usually take a middle of the road data point & shoot it over my chronograph and look for pressure signs like flat primers or cases that seem to stick in a cylinder (on 38/357) or split cases mouths. I will ramp the load up from there. As to compatibility in rifles that I don’t know but logic says if it is safe in a pistol it should be safe in a rifle. I think one of my books shows specific rifle data, and I think the hogdens web site shows rifle data for handgun rounds. [/QUOTE]
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