meketrefe
.450/400 Nitro Ex
This is the thing about the 6mm....
The 223 is awesome but in terms of hunting and a bit more momentum (ideal for military use) the 6mm assortmet of bullets starts
where the 223 ends. You have a huge selection from 80gr, 85gr, 87gr, 90, 95gr all the way to 105gr and even 115gr that is too much
for this type of casing and military use anyway.
If the 223 was a 6mm it would be the perfect round as it is already a very good round. Even the same 223 case in the popular 6mm
TCU and 6x45mm produces amazing accuracy and extra 20-30% output in terminal results with similar trajectories.
The thing is that while the case could be the same the ideal would be to have 2 or 3 extra grains of equivalent space in a 42mm
case so then it coudl accomodate all sort of bullets including the longest 6mm ones.
This w/o much work will extend the range of the 223 to 800 yards for regular infantry ammo and to 1000 yards for some sort of
specialty long range round. They would most likely be 85gr and 95gr respectively (give and take).
All this following the same original philosophy the 223 introduced that is a substantial gain w/o much more weight added to the round
that is a huge factor for any military.
The 6.8 is so good that is hard to justify any other choice but if we were to design a new round we could probably look into the 6mm
and resolve all our problems because in the long distance the 6mm will be ballistically superior to any other caliber w/o going heavier
with more powder and bullet and more heat and concusion.
Or we might just take the 6.8 case and put a 6mm bullet into that case that is another amazing wildcat. Very similar to the WASP but
with a smoother shoulder for military use. 6mm-6.8 or 6mm SPC.
But IMO this case would have to be strethened to be pumpped to 62K psi like the current military ammo that is not a hard thing to do
even if one looses 1 grain or so.
The 6mm round will provide 2900 fps from a 16" barrel and very good sectional density over .2 and ballistic coefficients above .4 or more
G1 so needless to say the gain would be substantial yet very manageable round from all aspects.
I like the 6mm because the way I see it is my 223 that we love so much yet improved to fill all the current gaps of the 223 round
that are not too many by the way.
A fast round will be preferred for so many reasons and a 80gr or 85 gr solid steel/copper bullet like the one current in service will
be a very lethal combination. This could be the round for the next 50 years or until laser rays or something replace firearms.
But who knows what the big chiefs might do. Maybe the Army will pull their head out from their assess and do it right for everyone.
The chinese have gone 6mm and many the aforementioned things above are the why so it was not surprised to me.
If the 7.62x39 was a 6mm round there would be another 50 years of 7.62x39 in service but as we know 30 caliber and MBR with
compact cases do not go well together. We need good ballistics and speed.
I have the ballistics charts of all popular calibers if anyone is interested or just look for previous threads.
We have discussed this area before. Maybe I am totally wrong but when you analyze the data and having tested
many of these calibers 6mm makes a lot of sense.
The 223 is awesome but in terms of hunting and a bit more momentum (ideal for military use) the 6mm assortmet of bullets starts
where the 223 ends. You have a huge selection from 80gr, 85gr, 87gr, 90, 95gr all the way to 105gr and even 115gr that is too much
for this type of casing and military use anyway.
If the 223 was a 6mm it would be the perfect round as it is already a very good round. Even the same 223 case in the popular 6mm
TCU and 6x45mm produces amazing accuracy and extra 20-30% output in terminal results with similar trajectories.
The thing is that while the case could be the same the ideal would be to have 2 or 3 extra grains of equivalent space in a 42mm
case so then it coudl accomodate all sort of bullets including the longest 6mm ones.
This w/o much work will extend the range of the 223 to 800 yards for regular infantry ammo and to 1000 yards for some sort of
specialty long range round. They would most likely be 85gr and 95gr respectively (give and take).
All this following the same original philosophy the 223 introduced that is a substantial gain w/o much more weight added to the round
that is a huge factor for any military.
The 6.8 is so good that is hard to justify any other choice but if we were to design a new round we could probably look into the 6mm
and resolve all our problems because in the long distance the 6mm will be ballistically superior to any other caliber w/o going heavier
with more powder and bullet and more heat and concusion.
Or we might just take the 6.8 case and put a 6mm bullet into that case that is another amazing wildcat. Very similar to the WASP but
with a smoother shoulder for military use. 6mm-6.8 or 6mm SPC.
But IMO this case would have to be strethened to be pumpped to 62K psi like the current military ammo that is not a hard thing to do
even if one looses 1 grain or so.
The 6mm round will provide 2900 fps from a 16" barrel and very good sectional density over .2 and ballistic coefficients above .4 or more
G1 so needless to say the gain would be substantial yet very manageable round from all aspects.
I like the 6mm because the way I see it is my 223 that we love so much yet improved to fill all the current gaps of the 223 round
that are not too many by the way.
A fast round will be preferred for so many reasons and a 80gr or 85 gr solid steel/copper bullet like the one current in service will
be a very lethal combination. This could be the round for the next 50 years or until laser rays or something replace firearms.
But who knows what the big chiefs might do. Maybe the Army will pull their head out from their assess and do it right for everyone.
The chinese have gone 6mm and many the aforementioned things above are the why so it was not surprised to me.
If the 7.62x39 was a 6mm round there would be another 50 years of 7.62x39 in service but as we know 30 caliber and MBR with
compact cases do not go well together. We need good ballistics and speed.
I have the ballistics charts of all popular calibers if anyone is interested or just look for previous threads.
We have discussed this area before. Maybe I am totally wrong but when you analyze the data and having tested
many of these calibers 6mm makes a lot of sense.
