2nd test with the Saeco 315

orgoniun

orgoniun

Member
Finally got back to testing today with the 315, all loads exactly the same as before with 1 difference, sized and lubed in a Lyman 450 with Ben's red added.
Unique powder, Tikka T-3 Hunter 308 50yrd target
1st group 10 shots at the center bullseye with 14grn. Measures 1in.
2nd group 10 shots with 14.5grn upper left corner measures 3/4 in.

All loads increased by 1/2grn up to 16 opened up greatly after 14.5

Tried some at 100 yards but was very disappointed 4-6 inches but I'llkeep working on it with some different powders
 
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Brad

Brad

Benevolent Overlord and site owner
Staff member
Can you email me the photos and I will post them?
 
quicksylver

quicksylver

Well-Known Member
Can't comment on the use of Unique or Universal with that bullet...but if you have any 2400 I would try 16.8 grs or 20 grs Reloader 7 and work up from there..
 
orgoniun

orgoniun

Member
quicksylver said:
Can't comment on the use of Unique or Universal with that bullet...but if you have any 2400 I would try 16.8 grs or 20 grs Reloader 7 and work up from there..
Click to expand...
Quicksilver I'm going to look for both those powders this week, and the 450 sizer I picked up works great, had no problems setting it up and running.
 
Brad

Brad

Benevolent Overlord and site owner
Staff member
image.jpeg
Here is the target. I didn't shoot it, just posting it for orgoniun.
 
fiver

fiver

Well-Known Member
as soon as I seen all the holes near each other I knew you didn't shoot it.:p

is this a plain base version?
 
Ian

Ian

Notorious member
How'd the group move over six inches with half a grain increase?

A tip on Unique: It will show you barrel nodes. Looks like you hit on one at 14.5 grains, which is exactly where I would expect it with a .30-'06 and 180-200 grain bullets. I'd go back to 14.5 and maybe try moving .2 grains on either side of it. Yes, it can be that sensitive. Do that and weight your castings, cull bullets ruthlessly, and when you're convinced you've found the best spot in there that the powder can do, start playing with seating depth, neck tension (via different expander sizes), and really concentrate on details like how much you're knocking back the case neck, how consistent the friction is when seating a bullet (sort by "easy", "medium", "firm" and shoot those for their own groups), how straight your seating die is seating the bullets.
 
quicksylver

quicksylver

Well-Known Member
BTW..good gun...good bullet..
and congrats on getting the 450..
Good shooting right out of the gate..

I am is right ....
.2 grs will make a difference. .
Even with the slower powders.

Interesting your groups weren't linear..
I would expect that 3/4" group to be slightly
Under 2" @ 100 yds.

Keep us posted...
 
S

SwedeNelson

Guest
Kevin Stenberg

Have them in the line up. Just sayin'

Bullet maker, maker
Swede Nelson
 
quicksylver

quicksylver

Well-Known Member
org...you peaked my attention ...with your test loads using Unique..

so to scratch the itch...I loaded 20 rounds on the other end of the scale..
5 with 12 grs Unique, 12.5, 13, 13.5....
VHiQg71.jpg


I snuck to the range this morning ( I had chores to do in that direction) and shot them in a bit of a hurry, I am afraid...

The results surprised me....I guess the 308 likes that bullet with Unique ....could not really find a BAD load...
If I had to choose... I guess I would try the lowest again...12GRS....

The fliers are ..AGAIN...Me

Vs1lI4h.jpg
 
Ian

Ian

Notorious member
"Piqued". ;)

Well, it's hard to tell from some quick 5-shot groups, but there is a fragment of pattern there that indicates you ran it through about 95% of one full node cycle. Looks like you load could be right at 13.7 grains.
 
quicksylver

quicksylver

Well-Known Member
That the word I wanted!!!!..still looking over my shoulder ...trying not to get caught..;)

Ian ...I thought I would see the groups come together or blow apart..not this

If you are saying that is a node...I had no idea they covered so much territory with fast powders....

And you are right. ...too quick ...going to have to go back and try again..:confused:

Actually the whole point was to see what they would do at 100 yds...compared to Org.'s ...100 yd groups...

Dan
 
Ian

Ian

Notorious member
Internet buggar got me, had a duplicate post, deleted it, now they're both history. I'll attempt to repeat.

OK, heavy barrels obviously damp the harmonic vibrations considerably more than barrels with lighter contours do, and low pressure loads with fast-burning powder and short time under power generate very short, low-amplitude vibrations, so you really have to have a lot of good, solid group data to see any affirmative trends, I was just spouting some observations that only have as much merit as the validity of the sample, however I do fancy a trend there in your groups, regardless of flyers.

The fast powders tend to go through full harmonic cycles quickly, I've taken a lightweight, 22" .30'06 barrel through three distinct complete nodes. It just so happened that the "sweet spots" where the groups tightened up were at both extremes of the practical powder charge range and a third just about in the middle of the two. This was with Unique and a middle-weight bullet. Also, with a "Featherweight" barrel, I've run patterns and narrow strings out to around 3" at the extremes, at 100 yards, to give you an idea of my experience with finding nodes with Unique.
 
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