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The Range
Ammo & Reloading
105 Amax load workup - Beginner needing advice.
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<blockquote data-quote="Rmitch223" data-source="post: 2001331" data-attributes="member: 1005"><p>I'm going to work my load up, after realizing what pressures this load was capable of I feel that I shouldn't even have shot it. A friend loaded it for me and I wasn't aware of the load data at that time. It shot great and I don't believe there were any pressure issues. My Lyman manual says the min load is 35.2 and the max/accuracy load is 39.2. (IMR-4350 & 105amax)</p><p>What load should I start with? the min and work up in .5 increments? I was thinking of loading 5 different charge weights with 10 of each.</p><p></p><p>The COAL has been something I haven't completely wrapped my head around yet. I understand that it can be unsafe to seat them to far away from the lands and too close as well. That's why I put so much thought into making sure I do it correctly. The loads I previously shot loaded at 2.800" functioned and shot extremely well, but I don't know if they are jamming into the lands or not. I plan to use the technique Ive seen mentioned before to measure the COAL as soon as I pick up some dial calipers. Another thing that kinda confuses me is that SAAMI spec for COAL is 2.710" and I'm shooting very accurately loaded at 2.800". I'm just concerned this is too long I guess. I will know when I get some dial calipers I suppose, I'm just confused about it right now and probably making it more difficult than it really is.</p><p></p><p><u>Update</u>:</p><p>I checked my OAL using using a case that would hold the bullet tightly and was still moveable by hand. barely hand seated the bullet into the case. Then I chambered it many times and closed the bolt and measured each time. 90% of the time the measurement was 2.822", some measurements came out to around 8.245" but I believe the lands may have been slightly pulling the bullet out to that measurement when I was ejecting. So with 2.822" I should be right where I need to be with a OAL of 2.800" right?</p></blockquote><p></p>
[QUOTE="Rmitch223, post: 2001331, member: 1005"] I'm going to work my load up, after realizing what pressures this load was capable of I feel that I shouldn't even have shot it. A friend loaded it for me and I wasn't aware of the load data at that time. It shot great and I don't believe there were any pressure issues. My Lyman manual says the min load is 35.2 and the max/accuracy load is 39.2. (IMR-4350 & 105amax) What load should I start with? the min and work up in .5 increments? I was thinking of loading 5 different charge weights with 10 of each. The COAL has been something I haven't completely wrapped my head around yet. I understand that it can be unsafe to seat them to far away from the lands and too close as well. That's why I put so much thought into making sure I do it correctly. The loads I previously shot loaded at 2.800" functioned and shot extremely well, but I don't know if they are jamming into the lands or not. I plan to use the technique Ive seen mentioned before to measure the COAL as soon as I pick up some dial calipers. Another thing that kinda confuses me is that SAAMI spec for COAL is 2.710" and I'm shooting very accurately loaded at 2.800". I'm just concerned this is too long I guess. I will know when I get some dial calipers I suppose, I'm just confused about it right now and probably making it more difficult than it really is. [U]Update[/U]: I checked my OAL using using a case that would hold the bullet tightly and was still moveable by hand. barely hand seated the bullet into the case. Then I chambered it many times and closed the bolt and measured each time. 90% of the time the measurement was 2.822", some measurements came out to around 8.245" but I believe the lands may have been slightly pulling the bullet out to that measurement when I was ejecting. So with 2.822" I should be right where I need to be with a OAL of 2.800" right? [/QUOTE]
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