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.300 Allen Xpress ....looking for all the info i can get
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<blockquote data-quote="Fiftydriver" data-source="post: 166604" data-attributes="member: 10"><p>Dave,</p><p> </p><p>I guess I am in the business, at least part of my business is to look at the current top level of performance and use that as my starting point for my wildcats. </p><p> </p><p>I would agree that 100 to 150 fps on its own merit using conventional bullets is not a huge step up, but realize it is a step up from the current top rung of the performance ladder.</p><p> </p><p>Also, while this velocity gain is not dramatic, consider what with the extra horsepower, you have the ability to add 15 to 20 grains in bullet weight and match the velocity of the lighter bullet weights in the smaller rounds. This is where long range performance comes from. The added BC of the heavier bullets can be dramatic and at long range the differnece can be HUGE in wind drift, drop, retained velocity, retained energy and in penetration.</p><p> </p><p>So while many focus on simply a fps gain, I generally look at seeing if I can get a boost in bullet weight and BC and then the gains are VERY large, much larger then with conventional bullet weights.</p><p> </p><p>Now you can say if you use the new bullets in the smaller rounds they to gain ballistic performance and that is certainly true, but the heavier the bullets get and the longer the bullets get, the larger the advantage for a case that has a capacity and strength advantage over the smaller cases.</p><p> </p><p>In the 30 cal rounds, with a 165 gr bullet, the AX may only have a 100 fps advantage over the RUM, with a 180 gr bullet, it appears its closer to 150 fps or a bit more, with a 200 gr bullet it will often push closer to 200 fps.</p><p> </p><p>In my heavy rifle, with a 31" barrel, I was shooting the 200 gr Accubonds to 3490 fps average. Now I have built many long barreled 300 RUMs and I have yet to see one that had a barrel length of 31" or longer break 3300 fps with a 200 gr Accubond without loosing their primer pockets.</p><p> </p><p>With the 240 gr pill, using US869, I could get 3250 fps pretty easily with my 31" barrel, you will not see that or anything close to it with the RUM with any case life at all.</p><p> </p><p>Anyway, I will agree that if your comparing apples to apples, 100 to 150 fps does not mean all that much at long range, but the ability to drive much heavier, much longer, much higher BC bullets at the same velocity does offer a dramatic increase in ballistic and terminal performance over what the 300 rum can offer. Is it worth it, thats up to the individual.</p><p> </p><p>As far as loading a wildcat like this, I am setting up with most of my wildcats to offer formed cases to my customers so this is really not a concern at all. If some are intimidated by the forming process that is no longer a worry, if some do not want to put corn meal down their fine barrels, again, that is not a worry, they can get formed cased from me if they send in their virgin cases so that argument is not really valid concerning my wildcat rounds anymore.</p><p> </p><p>Certainly, I do not want to take anything away from the RUM or Edge, that is not my intent and I know full well what those two round can and will do with quality rifles, ammo and shooter, my business is just to take things to that next level, and then to the next level and then the next...... That is my passion and so far we are doing alright with the help of some new bullet designs by Richard Graves.</p><p> </p><p>Good Shooting</p><p> </p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 166604, member: 10"] Dave, I guess I am in the business, at least part of my business is to look at the current top level of performance and use that as my starting point for my wildcats. I would agree that 100 to 150 fps on its own merit using conventional bullets is not a huge step up, but realize it is a step up from the current top rung of the performance ladder. Also, while this velocity gain is not dramatic, consider what with the extra horsepower, you have the ability to add 15 to 20 grains in bullet weight and match the velocity of the lighter bullet weights in the smaller rounds. This is where long range performance comes from. The added BC of the heavier bullets can be dramatic and at long range the differnece can be HUGE in wind drift, drop, retained velocity, retained energy and in penetration. So while many focus on simply a fps gain, I generally look at seeing if I can get a boost in bullet weight and BC and then the gains are VERY large, much larger then with conventional bullet weights. Now you can say if you use the new bullets in the smaller rounds they to gain ballistic performance and that is certainly true, but the heavier the bullets get and the longer the bullets get, the larger the advantage for a case that has a capacity and strength advantage over the smaller cases. In the 30 cal rounds, with a 165 gr bullet, the AX may only have a 100 fps advantage over the RUM, with a 180 gr bullet, it appears its closer to 150 fps or a bit more, with a 200 gr bullet it will often push closer to 200 fps. In my heavy rifle, with a 31" barrel, I was shooting the 200 gr Accubonds to 3490 fps average. Now I have built many long barreled 300 RUMs and I have yet to see one that had a barrel length of 31" or longer break 3300 fps with a 200 gr Accubond without loosing their primer pockets. With the 240 gr pill, using US869, I could get 3250 fps pretty easily with my 31" barrel, you will not see that or anything close to it with the RUM with any case life at all. Anyway, I will agree that if your comparing apples to apples, 100 to 150 fps does not mean all that much at long range, but the ability to drive much heavier, much longer, much higher BC bullets at the same velocity does offer a dramatic increase in ballistic and terminal performance over what the 300 rum can offer. Is it worth it, thats up to the individual. As far as loading a wildcat like this, I am setting up with most of my wildcats to offer formed cases to my customers so this is really not a concern at all. If some are intimidated by the forming process that is no longer a worry, if some do not want to put corn meal down their fine barrels, again, that is not a worry, they can get formed cased from me if they send in their virgin cases so that argument is not really valid concerning my wildcat rounds anymore. Certainly, I do not want to take anything away from the RUM or Edge, that is not my intent and I know full well what those two round can and will do with quality rifles, ammo and shooter, my business is just to take things to that next level, and then to the next level and then the next...... That is my passion and so far we are doing alright with the help of some new bullet designs by Richard Graves. Good Shooting Kirby Allen(50) [/QUOTE]
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.300 Allen Xpress ....looking for all the info i can get
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