Difference in barrel life between .284 and 7 SAUM

[Mulligan]

What is the competitive barrel life difference between these two cartridges shooting 180's in F-class?

Pondering just using my Dasher until the elements force me to go to the heavier/BC rounds.
CW

 

[Mulligan]

@Zilla
You have shoot both, what say you?
CW

 

[Zilla]

+/-2000 for a .284. For me, the SAUM was less than 1000 but I know others who got better life than that.

 

[Mulligan]

+/-2000 for a .284. For me, the SAUM was less than 1000 but I know others who got better life than that.

Thanks

 

[Baka]

Thanks

If you run the saum in the low node I got 1800 good rds. But went south after that.

 

[Mulligan]

If you run the saum in the low node I got 1800 good rds. But went south after that.

What's the low node?
That could be perfect.
CW

 

[4xforfun]

What's the low node?
That could be perfect.
CW

If you are contemplating going to a slower node in a SAUM, I'd stick with the 284 so I could use Lapua Brass.

Just my .02
Tod

 

[100FUEGOS]

Nodo low 2840?

 

[ShootDots]

Here are some things to think about. 1.) Why run a magnum with the idea of running a node capable of being reached with a "straight" .284 or a Shehane? 2.) If you use H4350 in a .284 and run "about" 2840ish, you will get a solid 17-1800 rounds. 3.) If you use H4350 in a SAUM and run in the 2975-85 range, where the node actually is, your barrel life will be south of 1000. In my mind, the reason you want to run a SAUM is to run at the upper node with the Berger 184 and H4831sc where you might get 1000 good rounds but for use at ONLY BIG matches, unless you want to buy, chamber and develop loads for the SAUM twice per year! If winning is your only goal at 1000 yards in BIG matches, it is hard to beat a SAUM running north of 2950 with the 184! It is an excellent round!

 

[savageshooter86]

Here are some things to think about. 1.) Why run a magnum with the idea of running a node capable of being reached with a "straight" .284 or a Shehane? 2.) If you use H4350 in a .284 and run "about" 2840ish, you will get a solid 17-1800 rounds. 3.) If you use H4350 in a SAUM and run in the 2975-85 range, where the node actually is, your barrel life will be south of 1000. In my mind, the reason you want to run a SAUM is to run at the upper node with the Berger 184 and H4831sc where you might get 1000 good rounds but for use at ONLY BIG matches, unless you want to buy, chamber and develop loads for the SAUM twice per year! If winning is your only goal at 1000 yards in BIG matches, it is hard to beat a SAUM running north of 2950 with the 184! It is an excellent round!

What charge roughly will get you to that high node?

 

[ShootDots]

What charge roughly will get you to that high node?

In the vicinity of 60.0grains of H4831sc. A lot will depend on freebore etc..etc..

 

[Willow]

Barrel life on the 7SAUM is something that has been recently debated on an Aussie gun forum - and we're talking F-class. I don't shoot a SAUM but have friends who do. The general feedback is that a rechamber is in order around the 600-800 round mark depending on variables such as powder, cleaning regime, shooting strings etc - with the barrel generally being toast around 1200 rounds. Generally H4350 is the go-to powder - around 55-56gr netting around 2950fps with the 180s and it won't exceed energy limits we have on some ranges over here during major (Queens) shoots. I had a 284 and the barrel was cactus at 1800 rounds - I could have looked after it better but I don't think I'd be getting much value beyond 1800 rounds.

 

[gme]

if you run H4350 in the .284 and H1000 in the RSAUM, the barrel life wont be that much different, the RSAUM might actually go a bit longer

 

[RustyPin]

[QUOTE="ShootDots, post: 37332067, member: 792819"...... If you use H4350 in a .284 and run "about" 2840ish, you will get a solid 17-1800 rounds. 3.) If you use H4350 in a SAUM and run in the 2975-85 range, where the node actually is, your barrel life will be south of 1000. In my mind, the reason you want to run a SAUM is to run at the upper node with the Berger 184 and H4831sc where you might get 1000 good rounds .... ! [/QUOTE]
Not to De-Rail the Thread, but what exactly is the better Cartridge for the 184's that offers best barrel life? 7RM or even 7x61 Super?

 

[Alpine]

I'm at just over 1100-rounds on my SAUM, and it's still shooting well, placed 5th with it at an ELR match back in June.

26.5" Bartlein HV. Norma brass, 2960-fps using 4831-SC with the 180-Hybrids. Velocity has stayed steady with single digit ES/SD for the last 700-rounds.

 

[dannyjbiggs]

I've shot both. With the straight .284, I've gotten up to 2,600 rounds with solid accuracy...with the 7mm RSAUM, I've gotten up to 1,500 rounds with record-setting accuracy. But, realistically, I find myself changing out barrels now days with far less? Not one to use the straight .284 any longer, I average around 2,000 rounds plus on my .284 Shehanes.

Dan