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Hunting
Extreme Long Range Hunting & Shooting (ELR)
6.5 PRC for Extreme Long Range Hunting?
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<blockquote data-quote="Gamesniper19" data-source="post: 1531589" data-attributes="member: 95013"><p>It cannot be denied that bullet technology has pushed caliber technology. Over the past 10 years, coincidentally when the 6.5 Cm was approved, BC's and construction/reliability of construction of bullets now require us to use calibers that can push them. We need more COAL length, to the ratio of powder, to bullet size to push high BC bullets to extreme long range.</p><p>Lets look at an example of the same 140 grain bullet in 3 calibers and specifically compare powder ratio to bullet size. Assume for this test that all 3 powders are the optimum for speed, accuracy, and pressure.</p><p>6.5 CM - 44 grains powder = 31% bullet to powder ratio = 2850 fps</p><p>6.5 PRC - 56 grains powder = 40% bullet to powder ratio = 3080 fps</p><p>6.5 GAP - 62 grains powder = 44% bullet to powder ratio = 3190 fps</p><p>I submit that to be a 1000 yard extreme long range hunting rifle, a minimum of 3000 fps needs to be reached. More is good.</p><p></p><p>Johnlittletree, I hear you and data would suggest that 64% of all rifles are now built based on the short action which you kind of stated.. 52% of all short action custom rifles were a 6.5 CM, because Hornady pushed it. Hornady is the Amazon of the gun industry. If they deem it to be so, right or wrong, its going to happen.</p><p>The 6.5 PRC is a CM magnum, true. Hornady recognized the few shortcomings in the 6.5 CM, one being lack of velocity and energy as very long distance with high BC bullets, again not a big deal for targets and a big deal on animals. A lot like the 308, the parent for the CM.</p><p></p><p>Innovation is what pushes us to find calibers and bullets that change the shooting industry so "trying" short mags, and other wildcats is a good thing. Hence 6.5 GAP that hornady recognized as the most effective across all parameters of the 6.5's today. SO much so that they went to GAP and asked for their help in developing the 6.5 PRC, which the rumor is they wanted to buy the thing from GAP and they said no.</p><p></p><p>The 6.5 PRC will be bigger then the 6.5 CM. It has the ability to push 140 and 150 grain bullets at speeds that are more acceptable to hunters. Like it, dont like it, it is going to happen because hornady is making the brass, bullets, and marketing to companies and shooters alike. The 6.5 GAP will always be more of a handloaders gun.</p><p></p><p>I have both the CM and a GAP. The CM just became a "practice" rifle that doubles as my lightweight mountain rifle, easily capable out to 600+/- yards which i feel is IT'S limit on animals, given the data above, and will give me >3500 rounds of barrel life.</p><p></p><p>The 6.5 GAP, which I chose over the PRC because I exclusively hand load, is my go to extreme long range hunting rifle. GAP says 2000 round of barrel life and even if they are overstating that number by 25%, I shoot about 100 rounds a year out of my hunting rifles which would mean a rebarrel in 15 years...I can live with that knowing I have well over 3000 fps mzl vel and over 800 lbs of energy at 1000 yards.</p></blockquote><p></p>
[QUOTE="Gamesniper19, post: 1531589, member: 95013"] It cannot be denied that bullet technology has pushed caliber technology. Over the past 10 years, coincidentally when the 6.5 Cm was approved, BC's and construction/reliability of construction of bullets now require us to use calibers that can push them. We need more COAL length, to the ratio of powder, to bullet size to push high BC bullets to extreme long range. Lets look at an example of the same 140 grain bullet in 3 calibers and specifically compare powder ratio to bullet size. Assume for this test that all 3 powders are the optimum for speed, accuracy, and pressure. 6.5 CM - 44 grains powder = 31% bullet to powder ratio = 2850 fps 6.5 PRC - 56 grains powder = 40% bullet to powder ratio = 3080 fps 6.5 GAP - 62 grains powder = 44% bullet to powder ratio = 3190 fps I submit that to be a 1000 yard extreme long range hunting rifle, a minimum of 3000 fps needs to be reached. More is good. Johnlittletree, I hear you and data would suggest that 64% of all rifles are now built based on the short action which you kind of stated.. 52% of all short action custom rifles were a 6.5 CM, because Hornady pushed it. Hornady is the Amazon of the gun industry. If they deem it to be so, right or wrong, its going to happen. The 6.5 PRC is a CM magnum, true. Hornady recognized the few shortcomings in the 6.5 CM, one being lack of velocity and energy as very long distance with high BC bullets, again not a big deal for targets and a big deal on animals. A lot like the 308, the parent for the CM. Innovation is what pushes us to find calibers and bullets that change the shooting industry so "trying" short mags, and other wildcats is a good thing. Hence 6.5 GAP that hornady recognized as the most effective across all parameters of the 6.5's today. SO much so that they went to GAP and asked for their help in developing the 6.5 PRC, which the rumor is they wanted to buy the thing from GAP and they said no. The 6.5 PRC will be bigger then the 6.5 CM. It has the ability to push 140 and 150 grain bullets at speeds that are more acceptable to hunters. Like it, dont like it, it is going to happen because hornady is making the brass, bullets, and marketing to companies and shooters alike. The 6.5 GAP will always be more of a handloaders gun. I have both the CM and a GAP. The CM just became a "practice" rifle that doubles as my lightweight mountain rifle, easily capable out to 600+/- yards which i feel is IT'S limit on animals, given the data above, and will give me >3500 rounds of barrel life. The 6.5 GAP, which I chose over the PRC because I exclusively hand load, is my go to extreme long range hunting rifle. GAP says 2000 round of barrel life and even if they are overstating that number by 25%, I shoot about 100 rounds a year out of my hunting rifles which would mean a rebarrel in 15 years...I can live with that knowing I have well over 3000 fps mzl vel and over 800 lbs of energy at 1000 yards. [/QUOTE]
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6.5 PRC for Extreme Long Range Hunting?
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