222 Remington “case study”

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This is a very important part of reloading - to keep your case volume under control. There is a reason why the reloading manuals state which brand of brass they use - simply because their data is only applicable when you use the same brand. In this case as shown in the video, things become a bit more difficult. This is because there are different weight classes of Norma 222 Remington brass and I managed to get hold of a few hundred cases which fall into a total of three categories. This is not exactly ideal as a maximum charge in a lighter case (i.e. bigger case volume) will result in an overload if the same charge weight is poured into a heavier case (with less case volume).
If you really want to understand the problem you can picture the light cases as 223 Remington cases and the heavier ones as 222 Remington. Needless to say but if you load a maximum charge for a 223 Remington into a 222 Remington case, you will have a potentially dangerous issue with overpressure.

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29 сен 2024

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Комментарии : 10

@joelowery6919 10 месяцев назад

One can never be too vigilant when reloading! I really enjoy your videos in such a beautiful country!

@NordicRifleman 10 месяцев назад

Thank you very much for your kind comment 😀

@rbm6184 Год назад

If you don't load maximum charges for potential danger then the brass weight and different brands don't matter. The reloading manuals safety rules always state to begin at the lowest powder charge for a starting load and to never cross caliber charges or loads. Why would anyone want to load a .223 charge into a .222 case against the manual safety rules and ask for trouble? The safety information for proper reloading is in every single reloading manual. Those that don't follow it do so at their own risk.

@NordicRifleman Год назад

Of course it matters. What's the point of carefully working up a load and then pouring this perfected powder charge into random cases? 😉 My point is that even if you follow all safety precautions, you can still end up in this weird situation because the manufacturer's cases vary this much in weight. The worst example I know of is Norma's 300 Win Mag cases that can weigh either 215 or 270 grains. That is a huge difference that once got me in trouble when I at the range suddenly launched my 180 grain bullets at over 3200 fps.

@rbm6184 Год назад

@@NordicRifleman So you are telling me that for one specific caliber that a low powder starting charge is dangerous from one case brand to another? Please stop lying. Read your manual safety rules and get some experience. If the charge and pressure is too much then pressure signs will show up in the primer and the case in the form of flattened, pierced, or dislodged primers and in case stress fractures as the charge and pressure increases regardless of case brand signifying that the charge and pressure is too great. The physical condition of the case and the primer will tell you how far you can go with your powder charge and pressure for any given case brand.

@NordicRifleman Год назад

@@rbm6184 No, I have not written that at all. I have handloaded for around 150 rifles and maybe 35 calibers. My point is this: let's say that you work up a load in your rifle and then settle for a maximum load. Fine. Now it's time to load up say 50 cases to last you the entire hunting season. If one or several of those cases weigh considerably more than the others and thus has less internal volume, you will have an issue. That is the whole point of this video. I will also say that this is not a common phenomenon, but it DOES happen. E.g. for Norma 222 and 300 Win Mag.

@rbm6184 Год назад

@@NordicRifleman If the charge and pressure is too much then pressure signs will show up in the primer and the case in the form of flattened, pierced, or dislodged primers and in case stress fractures as the charge and pressure increases regardless of case brand signifying that the charge and pressure is too great. The physical condition of the case and the primer will tell you how far you can go with your powder charge and pressure for any given case brand.

@NordicRifleman Год назад

@@rbm6184 Agree 👍