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Numerous thanks for receiving back again to me on that Cal. That is great to learn that there's this type of proficient and experienced crew so nearby to me. I’m constantly in search of consultations and/or enter from unique engineers on one particular project or One more all around below. I recently had a nice dialogue Together with the fellas at Noreen Firearms and AI actually came up while in the conversations.
030” into the lands, 0.050” from the lands, and 0.one hundred” off the lands. I calculated the gap to the lands utilizing Mark Gordon’s super-exact and repeatable process. I figured one or two of Those people may possibly much out-carry out a couple of of these, and that might give me way on what range to try and do further testing. I began by using a seven-shot team of each on the a few bullet jumps, but I introduced everything towards the range with me to complete follow-up tests over a scaled-down range of bullet jumps just after These Original groups. Here is what I discovered:
If you discover this interesting, I’d remarkably propose obtaining Bryan’s e-book … You can find even an excellent examine in there on barrels from that PRB dude.
I used a K & M Precision Custom Diameter Extend Mandrel for 0.003” of bullet pressure to ensure Just about every situation had reliable neck pressure. I did load the ammo employing a Prometheus powder scale, which always assists.
Webpage 366 has the information for your .338 Norma Mag. Though the cartridge dimensions are distinctive, the text appears being the same. Just puzzled if anyone else recognized this?
” I don’t desire to overstate nearly anything, and I make an effort to present either side of the argument to supply a balanced perspective. Truthfully, if somebody can’t stand for both sides of the discussion, I’m not sure they’re educated enough to talk about it. I really do put loads of hard work into getting aim and balanced, so I do value you noticing that and finding the time to say that you choose to take pleasure in it.
I didn’t do any tests on distinctive neck rigidity on the three hundred Norma, but I'm able to say I received some fairly small SD’s with b&t pistol 0.003″ of neck stress … so it at the very least is apparently anecdotal evidence That may aid Bryan’s exploration.
Their penetration may be greater than perfect for an EDC load, but it’s not Everything you’ll see in a heavier good bullet. It would be an acceptable bullet for animal defense when you don’t have grizzly bears in your mind.
A fantastic reloading e-book is Leading-Quality Ammo. It had been published just several several years in the past and appears to be to have a whole lot of excellent assistance.
From my understanding the AXSR is all little firing pin, the AXMC is massive firing pin with optional tiny firing pin only for brief action, as well as MRAD is all large firing pin (On the other hand, even though the MRAD is all massive firing pin it is my understanding which the bolts are headspaced exclusively on the barrels They can be paired with – would this assist do away with pierced primers?). Many thanks to your views!
Truthfully, I’m not a tremendous .308 enthusiast—one other four Hunter chamberings are much more interesting to me personally—though the .308 Earn. is an exceptionally precise cartridge, as well as wildly common.
There are plenty of examples of it occurring. No handgun is often counted on to stop a bear in each and every circumstance, but the 10mm supplies a very good balance of electrical power and shootability.
If I ended up in your footwear and hoping to choose involving All those rifles, I know that I’d go Using the AXSR. In the event the bolt and barrel should be paired over the MRAD, Meaning after you go to interchange a barrel you have to mail the rifle off to the gunsmith.