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Re: 7.62x54R: just how accurate can it be?
Posted: Sun Apr 22, 2012 5:33 pm
by ovenpaa
The rim of the 54R is .030" larger than the .303 Odd though it seems according to QL you could cram the case full of N550 behind the 155 which would put you at over 2900fps and still be nicely down on pressure.
Re: 7.62x54R: just how accurate can it be?
Posted: Sun Apr 22, 2012 5:33 pm
by Sandgroper
ovenpaa wrote:A P14 in 54R... Well it would work and feed from the magazine as well. What you could do is use a .308 bore and take advantage of modern bullets in the end of the 54R case. Hmm.. imagine shooting a Pattern 14, chambered in 54R with 155 Scenar's...
That's a 7.62x53R the Finnish variation.
http://www.chuckhawks.com/30Russian.htm
The 7.62x54R ("R" for rimmed) was adopted by the Russian Army in 1891 in the Moisin-Nagant infantry rifle, and was used in both World Wars and the Korean War. This cartridge is also referred to as the 7.62x53R when chambered in Finnish rifles. Russian 7.62x54R rifles commonly have a groove diameter of .312" and therefore use what we call .303 caliber bullets, while Finnish rifles have a groove diameter of .308" and take standard .30 caliber bullets.
DM,
Rim diameter is 14.4mm (0.567in)
or
http://en.wikipedia.org/wiki/7.62%C3%9753mmR
The 7.62×53mmR is practically interchangeable with the 7.62×54mmR, the 54R will fit into the smallest allowed chamber size for the 53R, but is nevertheless a different cartridge made to different C.I.P. standards. Using military steel-jacketed 54R Russian ammunition in weapons made for 53R is not recommended (except the M39 and 7.62 TKIV 85 rifles designed to allow safe use of 54R in case of emergency, as it may rapidly wear out the barrel. Even worse, there is a possibility that the resulting pressure from the steel-jacketed larger diameter bullet is too much and firing it may result in severe damage to both the rifle and the shooter. Using the 53R in a gun made for the 54R is however safe, although it may result in accuracy well below the weapon's potential.
Re: 7.62x54R: just how accurate can it be?
Posted: Wed Apr 25, 2012 8:39 am
by zeroveez
Having read the posts, no one seems to have mentioned custom ammunition. Perhaps it goes without saying that rounds loaded to suit a particular chamber are the sine qua non starter for accuracy. Has the ammo been tuned?
Zeroveez
Re: 7.62x54R: just how accurate can it be?
Posted: Wed Apr 25, 2012 8:51 am
by ovenpaa
zeroveez wrote:Having read the posts, no one seems to have mentioned custom ammunition. Perhaps it goes without saying that rounds loaded to suit a particular chamber are the sine qua non starter for accuracy. Has the ammo been tuned?
Zeroveez
Do you mean hand loaded ammunition? That is where I suggested 155 Scenar's, if you mean further tuning such as some form of an 'improved' 54R maybe by bumping the shoulder angle or running a tight neck chamber then I would have though that would defeat the object of running 54R for the OP.
Nice idea all the same.
Re: 7.62x54R: just how accurate can it be?
Posted: Wed Apr 25, 2012 5:25 pm
by meles meles
The original idea was to see just how well military surplus ammunition would do in a decent rifle. I don't doubt that hand loaded rounds would be even better, and the Scenars might well be somewhere towards the pinnacle of performance. However, my hope and interest is still to take a pawful of standard military ammo and see how good it is in a rifle a little better built than an M1891 or PK. A low cost option might be a P14 conversion, a more expensive option a custom barrel in an AICS stock...
Re: 7.62x54R: just how accurate can it be?
Posted: Thu Apr 26, 2012 7:46 pm
by meles meles
...maybe something like this from Izhmash...
http://www.izhmash.ru/eng/product/sv-98.shtml
Re: 7.62x54R: just how accurate can it be?
Posted: Thu Apr 26, 2012 9:54 pm
by Dellboy
so how much in the uk ?
Re: 7.62x54R: just how accurate can it be?
Posted: Thu Apr 26, 2012 9:55 pm
by ovenpaa
I thought it was only chambered in 7,62 NATO
Re: 7.62x54R: just how accurate can it be?
Posted: Thu Apr 26, 2012 10:05 pm
by meles meles
ovenpaa wrote:I thought it was only chambered in 7,62 NATO
No ooman. It states '7.62x54R'
Not to mention that nice curved magazine for those of us who can't read...
Re: 7.62x54R: just how accurate can it be?
Posted: Thu Apr 26, 2012 10:25 pm
by ovenpaa
I remember reading about these 3-4 years ago and I am sure they were/were also chambered in 7,62 NATO which makes sense on a battlefield.