762x39 to 303 british MEXICAN MATCH AMMO
- Thread starter lone ranger
- Start date
lowridersvt
CGN Regular
- Location
- Niagara Falls ont
I prefer using 7.62x54r I find it works much better
OP you might find x54r the better donor, unless your express purpose was to make low recoil ammo.
The x54r powder will be more suitable, but DO NOT USE IT ALL. you need to download it some. But you can make 150gr full velocity ammo this way.
Also, x39 bullets are usually .310, whereas x54r is usually .311. I know it's a tiny difference, but that tiny difference can make the difference especially in enfields where bore diameter can vary up to .314 or more.
Its not as cheap as the x39 remade ammo, but it's closer to the real deal while still being comparatively cheap.
The x54r powder will be more suitable, but DO NOT USE IT ALL. you need to download it some. But you can make 150gr full velocity ammo this way.
Also, x39 bullets are usually .310, whereas x54r is usually .311. I know it's a tiny difference, but that tiny difference can make the difference especially in enfields where bore diameter can vary up to .314 or more.
Its not as cheap as the x39 remade ammo, but it's closer to the real deal while still being comparatively cheap.
Yes. Depending on your bore diameter they might not shoot very well though. Only one way to find out...
Has anyone chrono'd the 303 made with x39 components? Kinda wondering if this would make a suitable deer round for a small person (obviously need something not-fmj). The 7.62x39 isn't too far off a 30-30, and i know people have used it successfully, Im wondering if the large 303 case causes a drop in performance?
I just reread the OP, and he claims about 2120fps, which is like 250fps slower than normal? Is that correct?
I just reread the OP, and he claims about 2120fps, which is like 250fps slower than normal? Is that correct?
He does say to toss the sks bullet... but he means toss the sks case.
This isn't a new idea. (Not ragging on you though, don't take it that way) I first heard about it around here almost 3 years ago when we had that bad ammo shortage and nobody was making .311 bullets.
One guy said "my gun store is sneaky. They hide the 311 bullets in 7.62x54r." At first, i thought he meant the store was actually hiding the bullets behind the x54r on the shelf or something. Eventually it clicked. Lol
Hmmm. Store bought must have been some round nose bullets with terrible BCs. But yeah, factory 174/180gr ammo is only a bit faster (2460fps ish) than the x39 you're making with the 123gr bullet.
Was that tested over a chrono, or did that info come off a box of ammo? Because it appears different manufacturers load the x39 to differing velocities.
http://www.ballistics101.com/7.62x39.php
Now, i understand a lighter bullet with faster powder can potentially reach the same velocities as a heavier bullet being pushed by a larger quantity of slower powder, but i think you misunderstood me.
If the x39 and regular 303 are shooting to similar points of aim at 100, but the x39 is high at 200 then the BC on the 303 ammo must be lower than the x39 bullet. Heavier bullets tend to conserve velocity better (if they are of similar shape) so that leads me to believe the ammo used was a round nose.
Federal blue box 180gr has horrible BCs. The 180gr winchester is much better in that respect.
