I can't believe this website exists and is populated by interesting and knowledgeable gun nuts. I was looking for barrel manufacturers and opinions about their products and bumped into this website. There is so much information it will take forever to find what I need to know and what I don't even now know I need. I just got on here today and saw several posts from people I highly respect, all on the same website! This is a fascinating place to listen in on ideas knocked back and forth as understanding is achieved even if only by accident. My name is Rifleman67 and I live in NW rural Indiana where life is slower and people generally have respect for one another's ways and good manners. I spent the first three weeks of June in SE Alaska from the town of Eagle (almost went all the way down that road but we figured we would be in the way if we couldn't help the flood-victims of this springs thaw) on the Taylor Highway down to Nabesna Road at the Wrangell-St. Elias nat'l park/preserve and then on to the Kennecott mine at the end of the McCarthy road. My brother and I found the people everywhere we went to be just as nice as the folks at home but more independently minded. I reckon that comes in handy during the long dark winters they endure. I have some time on my hands nowadays for one reason or another and have gotten back into the various firearm disciplines as a means to keep my wits about me, to find solutions to interesting ballistic problems as they arise and as an all consuming distraction to personal grief for the time being as I live my life. This has worked well for me all year so I'm continuing to learn about all of the little intricacies of shooting projectiles from powder-based cartridge style weapons. I was a Combat Engineer for a stretch in the Marine Corps and most of my training started there although I've always had a burning need to know how things work and was an Automobile Mechanic for twenty years. I should have gotten an engineering degree like my father and oldest son did. (I know first hand that genius sometimes does skip a generation!) Between my sons and myself we have quite a few older and newer guns, mostly rimfire and the smaller calibers in long guns, the traditional pump shotgun sizes and a few handguns which I prefer others to shoot if there is an audience. I like bolt action rifles and since they are not legal to shoot deer with in Indiana there is not a lot of support for or interest in here. To get to shoot on a 1000 yard range is a good two hour drive from here and there are hardly any people per acre! I recently had a .450 Rigby built for personal protection when I visit Alaska and had a great time figuring out what I needed if I had to stop an enraged large brown bear on the coastal areas and the inland grizzly bears. They are the same thing but one has more food sources and gets much bigger generally. I used to take my Remington 870 for that purpose then last year we went down to Kodiak Island and flew out to the Katmai Preserve and I saw large brown bears that would laugh at my little 12 gauge. These are beautiful animals and a rarity to encounter in an actual predatory charge but the danger is real even if I do everything I can to prevent it. I based the rifle on a nice used CZ 550 in .416 Rigby because of the price, value and a new Aimpoint 9000L red-dot scope mounted in Maxima QD rings. I had it rebarreled and worked on by Wayne Jacobson of American Hunting Rifles in Corvallis, Montana and he did a fine job. I had him inlet the fore end of the stock and install a Picatinny rail to which I mounted a Surefire X400 with a tape switch on the right side of the stock where my left hand fingers naturally grip so I would be able to back up the Aimpoint and not spend a fortune doing it. Yes, it is not a traditional looking rifle but that is not what I was after and yes, it does offer a brisk recoil but I have a certain inborn tolerance for recoil that defies any logic I might lay claim to. I will test that ability more as I get set up to reload these cartridges and am able to find safe limits for the internal ballistics using, I might add, information I am finding on this website. If I have enough resources(money) I will try to put together a list of potential starting points to reload this cartridge as it is not supported by the manufacturer and there seems to be very little information out there. I feel it is a great cartridge and offers many component selections along with longer life for the cases and barrel even though it is almost identical in performance with the .460 Weatherby which also is based on the .416 Rigby case. It is regulated by the European C.I.P. standards and is rated at over 58,000 p.s.i. which isn't far enough behind the .460 Wby. to rate a raised eyebrow! Am I prejudiced just a little? Perhaps but I do like this thing. I promise to participate in discussions if I can think of anything intelligent to say mostly via enquiry because I am not an expert on anything in this field and don't want to waste people's time. I'll see you later.