7 RSAUM Load thread...Post your 7RSAUM(ony 7RSAUM) Load

[Sandstorm]

Which bullet are you shooting?

He's shooting the Berger 180 HYB...im thinkin

 

[JackWolfKnives]

He's shooting the Berger 180 HYB...im thinkin

Yep what my friend here said! 180 hybrid.

 

[SKWERLZ]

Had a chance to do some 100 yard practice recently. I screwed barrel number 3 back on which had 700 rounds before this session. I loaded up 88 rounds of Reloder 23. 59.0 grains of powder with a 210M primer in 3x fired ADG Brass. Barrel was cleaned prior to shooting.

The first five shots that are crossed out on the top left were N565 remainders from 600 yard practice last week. I used those to get my scope dialed in.

Then I shot an eight shot group of R23 to further foul the barrel.

After that, I fired four 20 shot groups of R23. All shots were fired one round per minute, so I could focus on my marksmanship and train on maintaining my position for a long duration. After the 20 shot groups were completed, I allowed the barrel to cool during the 10 minute cease-fire. And in between groups two and three, I took a 30 minute break during one of the shooting periods.

These are the results. Remarkable SDs and 20 shot groups that are about as good as I can shoot. Overall, very promising.

I normally use R26 but the test I did with R23,showed similar results as yours.
Both powders are fantastic in 7 saum.
As is H4831ssc.

 

[wasskeet]

No benchrest gun, but first three down the pipe. I'll take it from a 7 lb. shorty.

 

[BigGame]

When shooting loads listed here in an F-Class gun, how many fired rounds are you getting on the barrel before detecting things falling off? How long are your barrels lasting?

 

[JackWolfKnives]

When shooting loads listed here in an F-Class gun, how many fired rounds are you getting on the barrel before detecting things falling off? How long are your barrels lasting?

I pull mine somewhere between 1000-1200 but there is still life left in them. An analogy is tires. They aren't bald yet, but they would perform better with more traction so a new set goes on the high performance vehicle. I set them aside so I can go back to them if I wanted to use them for testing, or whatever else might make sense.

 

[SKWERLZ]

I pull mine somewhere between 1000-1200 but there is still life left in them. An analogy is tires. They aren't bald yet, but they would perform better with more traction so a new set goes on the high performance vehicle. I set them aside so I can go back to them if I wanted to use them for testing, or whatever else might make sense.

I just use mine for LR steel blaster but after a similar 1000-1200 rounds you definitely have to start messing with the load, it’s a hassle and could certainly complicate your competitive ambitions.

I kept one going past 1500 and it was pretty squirrelly, losing speed fast and more errant shots.

My current barrel is at 1150 and still shooting really well, shot it out to 2100 yards last Friday with good results but I know it’s on its last leg of the happy times.

I’ll probably adjust the load once or twice with this barrel and yank it.