What do you think?

[Jackalope33B]

Just got back from the range. Here are 6 strings of 5 shots each from 100 yards. Im using Varget, Win Brass, Fed 210M Primer, Sierra 175 SMK's. To the lands Im at 2.255. Im seating them at 2.245 (OGIVE) +/- .001 Im no where near a great shot, but from what you see which grain of powder do you think will be best suited?

EDIT: The barrel is 22" .308

 

[Gene Poole]

Re: What do you think?

What caliber? I'd guess .308, but you mention 2.245 OAL (or is it something else?) which is NOT .308.

At any rate, there's too much noise there to find any good signal. You've got a couple with good vertical dispersion, but it's hard to know if the horizontal is your or wind (it would have to be a lot of wind at 100yd).

I'd say work on your trigger finger and know when to call fliers. Mark your called fliers as such. If those outliers aren't fliers, then you need to work on something else (case prep, etc.).

If you remove what looks like the obvious flyiers for 44.4 and 44.6, you've got good vertical, which is consistent with my experience with Varget (44.5 is center of my Varget node for 178 A-Max and is for many other shooters on the hide too), but your 44.5 string, which should easily be in the same node as 44.4 and 44.6, is inconsistent.

My pet load is 44.5 Varget (compressed), Lapua brass trimmed to 2.008, 178 A-Max, ~2.810 OAL, and CCI BR2 primers. This out of a 24 inch 1:12 R700 PSS.

 

[Jackalope33B]

Re: What do you think?

Sorry, just added .308 caliber.. The way you see the target is the way it was shot at. I have not turned it 90deg left or right.

 

[Subxero]

Re: What do you think?

2.245 OAL???

I trim my .308 cases to 2.010

my .223 OAL is 2.240 if i remember correctly

not to sound like a jerk, but you sure you don't have a typo?
it is also possible we are measuring different points

could you please elaborate to help some of us out?

btw nice groups

what kind of rifle you shooting those out of?

 

[Jackalope33B]

Re: What do you think?


Just updated it.. Its 2.245 OGIVE.. Sry.
Nice groups? LOL Those are shitty compared to what Ive seen on here

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SubXerO</div><div class="ubbcode-body">2.245 OAL???

I trim my .308 cases to 2.010

my .223 OAL is 2.240 if i remember correctly

not to sound like a jerk, but you sure you don't have a typo?
it is also possible we are measuring different points

could you please elaborate to help some of us out?

btw nice groups

what kind of rifle you shooting those out of?






</div></div>

 

[High Binder]

Re: What do you think?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SubXerO</div><div class="ubbcode-body">
btw nice groups
</div></div>

^^Not nice at all.


Try seating farther out and re-shooting (.140" out to mimic my load). Mine seems to like longer loads but I also run AICS mags/DBM so I can get away with longer loads.

Here's my 168gr go to Varget load in .308 (OAL=OGIVE)

 

[Jackalope33B]

Re: What do you think?

So I should try OGIVE loading at 2.115? Ive heard the Sierra's like to be jumpep. But by how much?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: High Binder</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: SubXerO</div><div class="ubbcode-body">
btw nice groups
</div></div>

Not nice at all.

Try seating farther out and re-shooting (.140" out to mimic my load).

Here's my go to load in .308 (OAL=OGIVE)

</div></div>

 

[High Binder]

Re: What do you think?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jackalope33B</div><div class="ubbcode-body">So I should try OGIVE loading at 2.115? Ive heard the Sierra's like to be jumpep. But by how much?
</div></div>

No, you're at "2.245 (OGIVE)" right now, load them out another .1 - .15" if your chamber will let you and re-shoot them. The only bullets that I've ever found that actually liked to be jumped was 155 Palmas, everything else has liked being loaded pretty close to the lands. My best groups came from being .01" off the lands but my AICS won't let me load that long so the above load was the best one that would actually fit in the mag. Another thing; try some ten shot groups, you'll get a lot more feedback than the 5 or less shot groups.

 

[X-fan]

Re: What do you think?

Are you tuning for OCW?

If so the data is a bit soft (imprecise).
Sort of looks like it likes 44.0-44.2, but overall the gun likes the powder.

If you are tuning the load back up a bit....200yds good 300 better if the wind is quiet.

 

[Jackalope33B]

Re: What do you think?

When you say "Load them out another .1-.15", are you meaning .10-.15 in addition to the .10 that Im currently loading from the lands? My chamber OGIVE measurement to the lands is 2.255. So are you saying load them to 2.23 OGIVE? OR jam them into the lands .015 and load them at 2.270 OGIVE?

Here is a 10 shot group that I did last week. There is OBVIOUSLY a BIGGG difference. Not sure WTF happened today.
The circles below are 3/4".. Distance is 100 yards.

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: High Binder</div><div class="ubbcode-body"><div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jackalope33B</div><div class="ubbcode-body">So I should try OGIVE loading at 2.115? Ive heard the Sierra's like to be jumpep. But by how much?
</div></div>

No, you're at "2.245 (OGIVE)" right now, load them out another .1 - .15" if your chamber will let you and re-shoot them. The only bullets that I've ever found that actually liked to be jumped was 155 Palmas, everything else has liked being loaded pretty close to the lands. My best groups came from being .01" off the lands but my AICS won't let me load that long so the above load was the best one that would actually fit in the mag. Another thing; try some ten shot groups, you'll get a lot more feedback than the 5 or less shot groups. </div></div>

 

[High Binder]

Re: What do you think?

<div class="ubbcode-block"><div class="ubbcode-header">Originally Posted By: Jackalope33B</div><div class="ubbcode-body">When you say "Load them out another .1-.15", are you meaning .10-.15 in addition to the .10 that Im currently loading from the lands? My chamber OGIVE measurement to the lands is 2.255. So are you saying load them to 2.23 OGIVE? OR jam them into the lands .015 and load them at 2.270 OGIVE?

Here is a 10 shot group that I did last week. There is OBVIOUSLY a BIGGG difference. Not sure WTF happened today.
The circles below are 3/4".. Distance is 100 yards.

</div></div>

Shit, my bad. I thought you were jumping them more than just .10 but I would still run them up just shy of the lands ~.01/.02" I had WAY better luck with SMK174s (don't have a picture though) when they were just a touch off the lands. However, your ten shot groups look pretty good. Were the "flyers" in your 5 shot/s groups your last shot of that group (tend to see flyers more on the last shot of a group). I took a slight consistency hit when I started loading mag length (AICS) from when I was jumping everything ~.01 but loading in a mag was worth it. Are you married to Varget? My best loads ever in .308 were with IMR4064 which is very close to Varget but seems to produce better consistency. I only switched to Varget when I couldn't find IMR a few years ago when we had that huge shortage.

It looks like you're a pretty good shot but I've gotta ask: do you think some of the spread could be you and not the ammo? Some days I feel like I'm shooting a shot gun and others I get nice tiny groups.