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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Extreme ES caused by barrel?
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<blockquote data-quote="Hard Head" data-source="post: 2077719" data-attributes="member: 91079"><p>Usually ES is caused by a single or multiple problems with reloading components ,how they are assembled. I recently was out shooting my .454,was using cast with mu lube and powder coated cast bullets of my making. I loaded up 3 cases of Starline with lubed, 3 with powder coated in starline and 3 in winchester with powder coated all loads were assembled with cases that were with in .01 in weight and powder was H110 and cast all were .453 in dia.and with in 1/10 gr. in weight all were the same length win went 1470 fps sd was 18,starline went 1422 fps sd 30, lubed with starline were 1354,1320 then the kicker was the 3rd shot,small rifle primers can be hard to set off in cold weather was 15 out it was a miss fire,God I hate them as you always wonder if it will go off when you rotate the cylinder or remove it,rotated and fired again and it went off 1220 fps. 100fps slower. so there are many variables that how it goes bang,first look at case length and crimp and neck tension are the first things ,then primers are the next things and are usually the first thing I play with,different primers act different with the same powder. One day during the summer I loaded my .338 Lapua and shot some loads that had a SD of 2.25 for 10 shots,I was astonished, went out with the same cases in the fall was in the 40's verses the 80's in the summer and it shot a15.75 spread, the air was dry in the fall compared the the summer heat and very humid,, unless you are shooting 1000 yds. don't worry too much but be aware the temp., and humidity along with a lot of other things affect extreme spread, an animal very rarely says,that bullet was a little slower than the first,ya better run!!!! HardHead</p></blockquote><p></p>
[QUOTE="Hard Head, post: 2077719, member: 91079"] Usually ES is caused by a single or multiple problems with reloading components ,how they are assembled. I recently was out shooting my .454,was using cast with mu lube and powder coated cast bullets of my making. I loaded up 3 cases of Starline with lubed, 3 with powder coated in starline and 3 in winchester with powder coated all loads were assembled with cases that were with in .01 in weight and powder was H110 and cast all were .453 in dia.and with in 1/10 gr. in weight all were the same length win went 1470 fps sd was 18,starline went 1422 fps sd 30, lubed with starline were 1354,1320 then the kicker was the 3rd shot,small rifle primers can be hard to set off in cold weather was 15 out it was a miss fire,God I hate them as you always wonder if it will go off when you rotate the cylinder or remove it,rotated and fired again and it went off 1220 fps. 100fps slower. so there are many variables that how it goes bang,first look at case length and crimp and neck tension are the first things ,then primers are the next things and are usually the first thing I play with,different primers act different with the same powder. One day during the summer I loaded my .338 Lapua and shot some loads that had a SD of 2.25 for 10 shots,I was astonished, went out with the same cases in the fall was in the 40's verses the 80's in the summer and it shot a15.75 spread, the air was dry in the fall compared the the summer heat and very humid,, unless you are shooting 1000 yds. don't worry too much but be aware the temp., and humidity along with a lot of other things affect extreme spread, an animal very rarely says,that bullet was a little slower than the first,ya better run!!!! HardHead [/QUOTE]
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Extreme ES caused by barrel?
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