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L! This should get some folks excited...
Stronger case head with a smaller primer allows you to get longer pocket life, and the case head can support more pressure due to the increased amount of material around the primer pocket. It has nothing to do with something being any better...Just something different that someone came up as a sales gimmick, and it does make sense.
A better question for a thread may be what cartridges are proven to be inherently inaccurate and for what proven reasons. I have a 35 Remington Marlin lever action that will shoot >1.5" groups all day long with factory ammo. While it's not a long range rifle and 1.5" is not impressive, I have had so called inherrenitly accurate cartridges that would not do that.Same here, but only around 20 years for me. Some others that sparked it around the same time for me, were the 7mm STW, .308 Win, .22-250, and 7mm-08 Rem.
If there is a such thing as "inherently accurate", then that very diverse group of cartridges should not all be falling into the same category, as they all possess different characteristics (some being drastic) and dimensions in different capacities, parent cases, and bullet diameters. This proves there is no such thing as an "inherently accurate" cartridge...Only accurate (precision) rifles, being shot by accurate (disciplined) shooters.
I do believe that same thing that some cartridges can achieve accuracy easier & less finicky but in alot of what makes that possible is the right chamber. My two 270 wsm rifles would do 1 moa all day long, even with some factory ammo. It had narrow nodes & finicky about consistently trying to achieve 1/2 moa after trying four different powders and 5 different bullets & extensive brass prep. The Sammi throat & magazine length is restricted how far out I wanted to seat bullets. I'm sure there are plenty of guys on this forum who do well with a 270 wsm in a saami throat. But I'm my humble opinion, the round would have been way less finicky in a long action with bullets seated long in a longer throat. So in factory form, I wouldn't call it what some people call inherrenitly accurate. With a long throat, I would say that the case itself and loaded long it would certainly put it into what people consider an inherently accurate catridge category. I completely agree with you some cartridges are naturally way less finicky. Some catridges are deemed by many people to be finicky or not inherrenitly accurate when in reality they do have wide accurate nodes or maybe just the correct throating makes easy load development with wide nodes & good case fill ratio with suitable powders. But yes, there are catridges that are definitely less finicky in factory form. 7mm rem mag fits into a category of being non finicky in a factory chamber but you will rarely hear someone say it is "inherently accurate". All that is said about the old rem mag is how awful the belt is and everything that's wrong with it, yet it has been in the top ten of cartridges sold by federal for several years. I guess that I just don't like the phrase "inherently accurate" cause it is misused at times & loosely used. If a group of cartridges fits into a category of inherrenit accuracy, then there must be the others that are not inherrenitly accurate such as my opinion of the 270 wsm in factory form. Longer throat should jump it on over into the inherrenitly accurate category, just my humble opinion. I have two 6.5 cm and a 300 nm, both of those are extremely non finicky so I could say they are "inherrenitly accurate". That said, the 300nm was extremely finicky when the throat was too long.
One time at the range, I had a younger guy (probably mid-20's, looked like Reserve based on his haircut) at the range. And during a "Range Cold" call, he asked me what I was shooting, because he was watching through his scope, and saw that I was "really stacking them in there..." (his words).
My dad's old 1950's JM-stamped Marlin 336 .30-30 Win. would never shoot better than 2-3" groups at 100, which growing up, all i ever heard was, "Yep, she's good enough to kill a deer..." When I got older, and that new LeverEvolution .30-30 ammo came out, I bought some. I took it back to the range, and it was producing nearly .308 Win performance, and was shooting 1" 3-shot groups at 100. Absolutely blew me away...Along with a buddy of mine who was also there shooting with me. Turned that 100 yard "brush gun" into a real deer rifle, capable of 200-300 yard shots. May not be BR quality, but it turned an average 2.5-3" gun into an MOA shooter.
Simply & well said!
Not according to the Palma guys....or Lapua, they really pump the small primer thing, just as much as hornady and Creedmoor lol
