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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Help..Throat length / Freebore / bullet jump
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<blockquote data-quote="JAYgs8163" data-source="post: 2618284" data-attributes="member: 37460"><p>Agree, went through this process also with a 65 PRC AW2 built on a defiance long action. Decided on the 144 Berger after numerous testing also with 131 Hammer Hunter and the 156 Berger. I found good accuracy at .020-.030 off but always had pressure spikes quickly and was disappointed with MV. Slowly backed off the lands and found great accuracy with the Bergers and decided eventually on the 144 Berger. Best result showed up about .070 off the lands and no pressure. Running around 2975 out of a 22" 7.5 twist Proof, sub 1/2 MOA. For me, lately, I've had my best results with jumping further. Also had a friend recently hitting pressure fast but having great accuracy with the 143 ELDX at .020 off. Started backing off and in .005 increments and found a great combination between .045-.050 off, pressure gone and increase powder charge with increased MV. Then I have my 65 CM I run the 140 Berger .010 off and it's sub 1/2 MOA. So I completely agree with you about every barrel and gun is different. Was just sharing my recent experiences with the hybrid Ogive.</p></blockquote><p></p>
[QUOTE="JAYgs8163, post: 2618284, member: 37460"] Agree, went through this process also with a 65 PRC AW2 built on a defiance long action. Decided on the 144 Berger after numerous testing also with 131 Hammer Hunter and the 156 Berger. I found good accuracy at .020-.030 off but always had pressure spikes quickly and was disappointed with MV. Slowly backed off the lands and found great accuracy with the Bergers and decided eventually on the 144 Berger. Best result showed up about .070 off the lands and no pressure. Running around 2975 out of a 22” 7.5 twist Proof, sub 1/2 MOA. For me, lately, I’ve had my best results with jumping further. Also had a friend recently hitting pressure fast but having great accuracy with the 143 ELDX at .020 off. Started backing off and in .005 increments and found a great combination between .045-.050 off, pressure gone and increase powder charge with increased MV. Then I have my 65 CM I run the 140 Berger .010 off and it’s sub 1/2 MOA. So I completely agree with you about every barrel and gun is different. Was just sharing my recent experiences with the hybrid Ogive. [/QUOTE]
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Help..Throat length / Freebore / bullet jump
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