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Rifles, Reloading, Optics, Equipment
Reloading
Are cci br2 primers a bad choice with Retumbo?
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<blockquote data-quote="jaycoux" data-source="post: 462194" data-attributes="member: 28299"><p>Hi all,</p><p></p><p>New to this forum. I am loading 25-06 with Berger 115 vld's. I did everything I was told on this site as far as getting the right seating depth and so on.</p><p></p><p>My rifle likes (doing ocw test at 100 yards) 59.6 grains retumbo and a jump of 0.09. Accuracy has been pretty good at 0.4" to 0.5" but I am having a difficult time getting the velocity to be consistent. All of my ocw charges were all over the place, in some cases 90 fps between 3 shots. I also tried HSM's loading of the berger 115's and they vary by about 50 fps.</p><p></p><p>Chrono is an oehler 35-P. I did my test in mild conditions, temp was about 50 but very humid. Charges were weighed on 2 separate scales-RCBS chargemaster, then on a regular balance scale. All brass was virgin Nosler Custom neck sized on a redding competition die. </p><p></p><p>I realize these variations are not such a problem at 100 yards but at 600 it will be a different story. Do you think it's my choice of primer (cci br2)? Perhaps the primer isn't hot enough with a slow burner like retumbo? I was thinking of going to WLR primers, then maybe a magnum primer like a cci 250. Should I back off my load more than 1 grain when switching to WLR? I would probably start from scratch if I had to go to a magnum primer.</p><p></p><p>Any thoughts or advice?</p><p></p><p>jay</p></blockquote><p></p>
[QUOTE="jaycoux, post: 462194, member: 28299"] Hi all, New to this forum. I am loading 25-06 with Berger 115 vld's. I did everything I was told on this site as far as getting the right seating depth and so on. My rifle likes (doing ocw test at 100 yards) 59.6 grains retumbo and a jump of 0.09. Accuracy has been pretty good at 0.4" to 0.5" but I am having a difficult time getting the velocity to be consistent. All of my ocw charges were all over the place, in some cases 90 fps between 3 shots. I also tried HSM's loading of the berger 115's and they vary by about 50 fps. Chrono is an oehler 35-P. I did my test in mild conditions, temp was about 50 but very humid. Charges were weighed on 2 separate scales-RCBS chargemaster, then on a regular balance scale. All brass was virgin Nosler Custom neck sized on a redding competition die. I realize these variations are not such a problem at 100 yards but at 600 it will be a different story. Do you think it's my choice of primer (cci br2)? Perhaps the primer isn't hot enough with a slow burner like retumbo? I was thinking of going to WLR primers, then maybe a magnum primer like a cci 250. Should I back off my load more than 1 grain when switching to WLR? I would probably start from scratch if I had to go to a magnum primer. Any thoughts or advice? jay [/QUOTE]
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Are cci br2 primers a bad choice with Retumbo?
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