Just wanted to post my results for RL15.5, in comparison to other popular powders, to give a better idea where to start percentage wise..
Both rifles handle pressure well so load down from my starting points, or if you already have a load with one of the slower powders, you should be able to use this to give a more accurate starting point when trying 15.5.
My reason for running these pressure tests with the 6.5 creed is due to almost being out of BR4’s and old lot of H4350, so knowing that this receiver doesn’t get along with either 450’s or 205’s, I wanted to see if any of the powder choices would change that..
Looking at the target, I was very impressed with how well the 15.5 held POI shift, from 40.1-41.3. I will load some of this area and shoot a ladder at 600yds once I get a calm day.
Varget seems to be the looser of the 4, which is usually my experience when testing this “go to powder”. Lol
I shot a group with my old load to make sure everything still looked good, before starting the test. This rifle has always avg mid 2’s or better at 100yds. All the data is on the target..
The 300saum IMP will handle the same powders and I have already posted those results on @GlennK thread but figured It would be useful here as well. These tests were ran at 200yds with 185 juggernauts.
Both rifles handle pressure well so load down from my starting points, or if you already have a load with one of the slower powders, you should be able to use this to give a more accurate starting point when trying 15.5.
My reason for running these pressure tests with the 6.5 creed is due to almost being out of BR4’s and old lot of H4350, so knowing that this receiver doesn’t get along with either 450’s or 205’s, I wanted to see if any of the powder choices would change that..
Looking at the target, I was very impressed with how well the 15.5 held POI shift, from 40.1-41.3. I will load some of this area and shoot a ladder at 600yds once I get a calm day.
Varget seems to be the looser of the 4, which is usually my experience when testing this “go to powder”. Lol
I shot a group with my old load to make sure everything still looked good, before starting the test. This rifle has always avg mid 2’s or better at 100yds. All the data is on the target..
The 300saum IMP will handle the same powders and I have already posted those results on @GlennK thread but figured It would be useful here as well. These tests were ran at 200yds with 185 juggernauts.
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