New rifle build

[Wrkn2hunt]

I am using Win brass and started with new so FF as I go. So wasn't into the head space yet but working that way. I am just using RCBS dies. If this was a bench rifle I'd get more carried away but if I can get a 1/4" out of it then I'm gonna stretch the legs. I built this rifle for hunting and have never done any bench shooting other than for personal satisfaction.

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Again I started .005 off the lands and will adjust but don't wanna jam cause in the end it's a hunting rifle.

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I had to take a lil time today for one of my future coyote sniping partners. His first day with a 22 and a scope. He thinks he's ready!

 

[SDMF]

A jam is no big deal with bushing dies you can adjust your neck tension, .002-.003 worth and you sure as heck aren't pulling bullets.

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I'd be WAY more concerned about holding ~3"-4" @ 400 than I would be about getting to 1/4" @ 100. 1/4" @ 100 DOES NOT automatically correlate to 1" groups @ 400.

 

[Wrkn2hunt]

A jam is no big deal with bushing dies you can adjust your neck tension, .002-.003 worth and you sure as heck aren't pulling bullets.

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I'd be WAY more concerned about holding ~3"-4" @ 400 than I would be about getting to 1/4" @ 100. 1/4" @ 100 DOES NOT automatically correlate to 1" groups @ 400.

i also understand that. The 243 I worked on this winter actually shoots better groups at 200 than I can get with it at a 100. But it's a good foundation ti start with.

 

[Wrkn2hunt]

Damn wind. Really wanted to do some more testing today but she's blowing early. Guess I'm on hold til she drops. Good ole ND!

 

[Wrkn2hunt]

Figured I'd update. This thing just keeps impressing me! Props to my builder for making me a hammer! The wind has been fighting me but still getting some testing done. I'm gonna test a few more things and then Start stretching the legs. I also want to say I topped this with a new Zeiss HD5 and love it! It's more compact and more power than the older version and tracks just like all my Zeiss's have.
I wanna say I did a front rail and am using an American Defense bipod adaptor and it's the cats ass!

 

[Kentucky Windage]

Looking good. I'm with you on the wind. It's really hard to have a calm day and have the the free time to shoot. Think I need to build an underground shooting range!

 

[Long Range Hunter]

What kind of velocity did you get out of the retumbo?

 

[Wrkn2hunt]

What kind of velocity did you get out of the retumbo?

I havn't chrono'd it yet and not sure if I will. I generally stretch the legs and build my data off of actual drop. Seems to be far more accurate then just going off of chrono numbers.

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I should add I am a bit below max but went up and over recommended max and it didn't like it as much. Never got to the point of showing pressure just groups opened up some. I also played with seating depth but ended at 69.2 of Retumbo and .005 off the lands.

 

[Wrkn2hunt]

Beautiful night to do a little testing! Keeps impressing me!

 

[svnmag]

Package coming.

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All I'm asking is a cold barrel for group. I'd shoot these rds against anything on the planet.

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[Wrkn2hunt]

Package coming.

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All I'm asking is a cold barrel for group. I'd shoot these rds against anything on the planet.

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What kinds of groups are you getting with them and have you tried them in multiple rifles?

 

[Bed Wetter]

I really love this thread.

 

[svnmag]

Sorry, nope just in the old '77. Multiple "premium" factory loads with the same decent result. Quarter at 100. I got these damn things and can print a .50 cal hole. I hope I'm not talking out of my ass. We shall see I guess! Also, I meant cold barrel for every shot and I did fire a fouler before settling in.

Here's what you're getting:

https://www.youtube.com/watch?v=AMxZVb_4Ea8

https://www.youtube.com/watch?v=WKKAiovEyak

 

[Kentucky Windage]

I havn't chrono'd it yet and not sure if I will. I generally stretch the legs and build my data off of actual drop. Seems to be far more accurate then just going off of chrono numbers.

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I should add I am a bit below max but went up and over recommended max and it didn't like it as much. Never got to the point of showing pressure just groups opened up some. I also played with seating depth but ended at 69.2 of Retumbo and .005 off the lands.

A chrono will tell you more than just what number to put in for velocity when running a ballistics program. I don't shoot without mine. Lots to gain from running a chrono IMO.

 

[PrairieGhost]

Beautiful night to do a little testing! Keeps impressing me!

Beautiful. In the world of gunsmiths you got a Rembrandt.

 

[Whisky]

Beautiful. In the world of gunsmiths you got a Rembrandt.

Andrew is just that good......

100yd



400 yd...



1016yd....

 

[Lycanthrope]

ya he shot the 162 sst last year and they worked well i can only imagine with the amax it will be better and i know a few people who have the 7-08 with 162 and love it

In my limited reloading experience, ive had better accuracy with the SST's than Amax, but course they dont have the same BC...

 

[Bed Wetter]

Andrew is just that good......

100yd



400 yd...



1016yd....

Holy mackerel...

 

[deleted_account]

Holy mackerel...

My thoughts exactly

 

[Wrkn2hunt]

Another beauty of an evening to shoot. Had a little wind but sent a few I had loaded anyway. Tonight I tested at 300 and my data thus far is spot on. I didn't adjust at all for wind and was just confirming drop data. It was one of those nights I just wasn't feeling on but shot a decent group anyway. Gonna keep backing up as long as the wind will allow. I think I can get another hundred out of our range then I will be jumping pastures for tests.