Advances in ammunition

[Mungo]

I tried some speciality brass with the Creed. Small rifle primers. Checked estimates for pressure on Quickload for what it was worth I mean I was going to be way above Saami. It loaded up to factory box performance on 65 PRC. It’s not rocket science. I assumed that the safety factor on the rifle design was a whole heap more than about 15% over a theoretical Saami max p.

What is clear is that Creed factory ammo is way under loaded making room for a nice magnum cartridge.

Last time I heard there was a suggestion that the 277 Fury was being downloaded from 80ksi as it wasn’t very accurate

I have loaded 6.5 Creedmoor up to 6.5 PRC factory speed (Lapua SR brass). Absolutely no pressure signs at all.

I also have a 6.5 PRC that can be loaded way up above factory speed.

Essentially, you can buy standard factory ammo for both, or load for both, and retain a 300fps difference. Or you can load for Creedmoor and obtain factory PRC performance.

Mixing across both rifles with both factory and loaded ammo gives me a range of speeds from 2550 to 3150 for the same bullet. Very handy to have that flexibility, so I can choose rifle and load to fit the context.

Roe at short range in woodland? Creedmoor with factory ammo. Sika at long range in clearfell? PRC with home loads.

 

[Bowland blades]

I’ve just been listening to a podcast that says that the steel alloy cases do not Stretch like brass so will not need to be trimmed when reloading.

Because brass is far more mallable than steel , It flows hence we can reload it many , many times more than steel . Many Nations have used steel cases in the past , it is no place near as a reloadable as Brass ( which can go over 10 firings , without annealing) And a lot more again if you anneal.
It might well be able to your rifle shoot faster than SAMI spec but shooting ten plus firings safe and with a a constant reliable same release ? I am very much a Disbeliever !
Now someone spoke of Sika on clear fell at long range ? Well the ammo we use in brass at present will shoot better groups and is more importance than the person shooting it . Nobody will be shooting better accuracy than they do with Brass and the limit of the shooter skills is the most important thing on extended long ranges .

 

[Heym SR20]

This steel case / composite case ammo is really a military requirement to get bullet velocities right up high so that it will penetrate current and next generation personal body armour with sufficient retained energy to kill / incapacitate the enemy soldier.

Long gone are the days when our potential adversaries wore just cotton or woolen tunics that provide minimal protection to an FMJ as far as you could hit them.

There may be applications for such tech for those who want or need to shoot deer at 3, 4 or 500 plus metres.

 

[cjm1066]

6.5 Creedmore with Peak Alloy case

or

6.5 PRC

Which will be easier to use over several 1000 shots as a reloader?

 

[Tikkat3rob]

Gain twist, just screams BC loss to me, unless we have drive band style bullet designs i don't see any benefits for long range accuracy. Bottom line I'm sceptical