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<blockquote data-quote="Fiftydriver" data-source="post: 85114" data-attributes="member: 10"><p>Eaglet,</p><p></p><p>I don't sleep much my friend, I am either working in the shop(currently thats about all I have been doing), getting my personal rifles ready for the upcoming season or working on R&amp;D for the new AMs on the way.</p><p></p><p>So far its been alot of fun with some frustrations but nothing out of the ordinary for this type of playing around!!!</p><p></p><p>The 338 Lapua cases, either Norma or Lapua, have a very good neck and shoulder anneal from the factory. As such they are easily necked down to 270 and 7mm with no problems. They can also be loaded and fireformed without any annealing needed.</p><p></p><p>After then have been fireformed, then I recommend reannealing the neck and shoulder of the case. After that you will get 5 to 6 firings before annealing is needed again.</p><p></p><p>It has been a busy last 1/2 year and it will only get busier from here out I suspect. Thats good though!!!</p><p></p><p>I will also drop another little hint. I am currently working on a prototype rifle based on a Ruger M77 MkII receiver. The wildcat it is chambered in is of 6.5mm caliber and is about as much performance as one can fit into a standard length(3.400" OAL) receiver.</p><p></p><p>Interestingly enough, This Ruger is a Magnum receiver and no modifications have been made to the action at all except to releive the extractor claw a bit. Feeding has been so far picture perfect for a CRF rifle and accuracy has been in the 3/4 moa with fireforming loads using the 140 gr Speer seated a solid 0.100" off the lands for a pressure cushion.</p><p></p><p>I just finished the barrel break in today doing it around customers projects that I am working on. It has a Lilja #6 contour, 1-8 twist 26" stainless barrel with a Holland QD brake on the stainless Ruger M77 MkII receiver and all that is sitting in the Ruger factory Laminated wood stock. Its quite an attactive medium weight sporter rifle.</p><p></p><p>I just loaded up the first test loads using the 125 gr Partition over AA8700 powder. </p><p></p><p>The starting loads begin at 85.0 gr and go up to 95.0 gr of 8700. At 95.0 gr the case is loaded to I would say 99 to 100% load density with this bullet seated to 3.400" OAL which fits in the mag box.</p><p></p><p>Basically the entire reason for this experiment was that I needed a lighter, faster handling rifle as a second rifle to take to Canada next month. A gunsmith laying in bed at night with his mind running is a dangerous, and often expensive situation for sure /ubbthreads/images/graemlins/grin.gif!!!</p><p></p><p>I will be testing this rifle out and if it proves up to my standards I will release an entire line of this size rounds, 257, 6.5 and 270. </p><p></p><p>The idea is to get as much performance as possible in a true standard length receiver. For the Rem 700 and true magnum length receivers the Allen Magnums of course the the chamberings of choice but I figured there were alot of Ruger and Win 70 standard length rifles out there that would make a great platform for these chamberings if they work out. </p><p></p><p>So far, I have liked everything I have seen with this 6.5.</p><p></p><p>I don;t even have a name for it yet, pretty sad. Kind of like a dad calling his kid "hey you"!!</p><p></p><p>More on these rounds soon to come. I will not give any details to the parent case or specs but I will say the case used is vastly superior to the RUM in case quality and soon it will be world class quality.</p><p></p><p>Did I mention that the fireforming loads with the 140 gr SP recoiled about like a 22-250 in a varmint weight rifle!!! She is a pleasure to shoot!</p><p></p><p>Kirby Allen(50)</p></blockquote><p></p>
[QUOTE="Fiftydriver, post: 85114, member: 10"] Eaglet, I don't sleep much my friend, I am either working in the shop(currently thats about all I have been doing), getting my personal rifles ready for the upcoming season or working on R&D for the new AMs on the way. So far its been alot of fun with some frustrations but nothing out of the ordinary for this type of playing around!!! The 338 Lapua cases, either Norma or Lapua, have a very good neck and shoulder anneal from the factory. As such they are easily necked down to 270 and 7mm with no problems. They can also be loaded and fireformed without any annealing needed. After then have been fireformed, then I recommend reannealing the neck and shoulder of the case. After that you will get 5 to 6 firings before annealing is needed again. It has been a busy last 1/2 year and it will only get busier from here out I suspect. Thats good though!!! I will also drop another little hint. I am currently working on a prototype rifle based on a Ruger M77 MkII receiver. The wildcat it is chambered in is of 6.5mm caliber and is about as much performance as one can fit into a standard length(3.400" OAL) receiver. Interestingly enough, This Ruger is a Magnum receiver and no modifications have been made to the action at all except to releive the extractor claw a bit. Feeding has been so far picture perfect for a CRF rifle and accuracy has been in the 3/4 moa with fireforming loads using the 140 gr Speer seated a solid 0.100" off the lands for a pressure cushion. I just finished the barrel break in today doing it around customers projects that I am working on. It has a Lilja #6 contour, 1-8 twist 26" stainless barrel with a Holland QD brake on the stainless Ruger M77 MkII receiver and all that is sitting in the Ruger factory Laminated wood stock. Its quite an attactive medium weight sporter rifle. I just loaded up the first test loads using the 125 gr Partition over AA8700 powder. The starting loads begin at 85.0 gr and go up to 95.0 gr of 8700. At 95.0 gr the case is loaded to I would say 99 to 100% load density with this bullet seated to 3.400" OAL which fits in the mag box. Basically the entire reason for this experiment was that I needed a lighter, faster handling rifle as a second rifle to take to Canada next month. A gunsmith laying in bed at night with his mind running is a dangerous, and often expensive situation for sure [img]/ubbthreads/images/graemlins/grin.gif[/img]!!! I will be testing this rifle out and if it proves up to my standards I will release an entire line of this size rounds, 257, 6.5 and 270. The idea is to get as much performance as possible in a true standard length receiver. For the Rem 700 and true magnum length receivers the Allen Magnums of course the the chamberings of choice but I figured there were alot of Ruger and Win 70 standard length rifles out there that would make a great platform for these chamberings if they work out. So far, I have liked everything I have seen with this 6.5. I don;t even have a name for it yet, pretty sad. Kind of like a dad calling his kid "hey you"!! More on these rounds soon to come. I will not give any details to the parent case or specs but I will say the case used is vastly superior to the RUM in case quality and soon it will be world class quality. Did I mention that the fireforming loads with the 140 gr SP recoiled about like a 22-250 in a varmint weight rifle!!! She is a pleasure to shoot! Kirby Allen(50) [/QUOTE]
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