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The fruit of todays labor.
midnightrunpaintballer
Member Posts: 2,233 ✭✭✭✭✭
I still think I can tune a little more out of it but not too shabby so far.
6 shot group at 100yds
6mm PPC
Lapua Brass
CCI BR4 primers
Barts 68gr Ultra's
And a REALLY hot load of Winchester 748
[img][/img]
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6 shot group at 100yds
6mm PPC
Lapua Brass
CCI BR4 primers
Barts 68gr Ultra's
And a REALLY hot load of Winchester 748
[img][/img]
Uploaded with ImageShack.us
Comments
Wasn't that 12 o'clock bullet hole part of the group?
yes it was. The group was wider than it was tall. I measured at the widest point.
quote:Originally posted by MG1890
Wasn't that 12 o'clock bullet hole part of the group?
yes it was. The group was wider than it was tall. I measured at the widest point.
Well, I see a distinct separate bullet hole. The group has to be .243" or larger center to center to yield 2 distinct holes.
What is the rifle & optics????
I'd bet if you tried some of the stick powders you'd get those groups down into the low ones which is where you need to be to be competitive.
JMHO
Ray
Maybe post a photo of the group without the caliper?
Ray
quote:I still think I can tune a little more out of it but not too shabby so far.
Not too shabby for a start for sure.
I do think that there are couple of other powder which offer better performance than the 748 but to each his own.
I also can suggest a freeware program used to measure your targets:
http://www.ontargetshooting.com/
This can be quite handy when using digital images or scanned images.
Good Shooting and keep up the testing.
Best.
I know 748 isn't the best powder to use in the ppc, but like I said, I've got 24 lbs of it here and its cheap so i thought I'd try it. I discovered that it is not able to reach full pressure before the bullet leaves the barrel. I can not fit another tenth of a grain in the case (using a drop tube) and i still can't get it to show any pressure signs. Powder has too slow of a burn rate And is not efficient for this caliber. I'm planning to switch powders but I'm kinda treading water to decide whether to go with lt32 or see if lapua will start making n133 again. In the meantime, I'm having fun with it. I can push the 68 gr Bart's ultras to 3400fps with it but they're more accurate in the 3200's from this gun.
That is great shooting, I truly would like to know the details of the rifle and optics.
the rifle was bought used from the wife of a competition bench rest shooter when he passed away. The action is glued into the stock so I can't identify the barrel or stock. But what I know is as follows:
hall action built by billy Stevens of Stevens accuracy.
barrel chambered in 6mm ppc with a tight .262 Neck
barrel and stock unidentified
jewell 1.5 Ounce bench rest trigger
leupold fixed 36x scope with tucker conversin
kelbly rings
the load in the photo is:
lapua 220 Russian brass swaged, turned, and fire formed to 6mm ppc.
CCI br4 primers
barts 68 gr ultras seated to jam
and a really hot load of winchester 748 powder.
I Dont like being jammed so i will be changing the load and most likely switching powders to either lt32 or n133. For now, I'm just playing with it. i cant post pictures from my phone and I have school right after work tonight and won't be home until late. I'll post some pictures then for you.
I found a magic solution to random fliers this winter on a benchrest rifle.... I quit touching the benchrest! It had a slight amount of movement in it, It took a long time to figure it out.
I'm a bag squeezer, too. And I mean that in the most literal, sandbag only, benchrest shooting kind of way.
What dies do you use, and how much bullet runout are you getting?
No, I found that simply leaning my torso against the bench slightly was pushing the bench over about 1/8" ... This was giving me horizontal fliers.
I'm a bag squeezer, too. And I mean that in the most literal, sandbag only, benchrest shooting kind of way.
What dies do you use, and how much bullet runout are you getting?
ahh I'm shooting off of a concrete bench. No worries there. I'm using redding bushing neck sizing die and a Wilson seating die. Never measured bullet runout.
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Uploaded with ImageShack.us
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My Wilson dies starting giving me bullet runout, like .002" or so.. I still have not figured out why. Believe it or not, and I am a little embarassed to admit it, but I tried a set of Lee collet dies and the runout returned to .001" or less.
Bald Eagle rest as in made in northern Pennsylvania. I had one. I loved it, extremely well made. Ordered mine with the cast iron base (vs. aluminum) for my 62 pound unlimited class 1000 yard rifle.
got a load for the ppc tuned back off jam. Had a little wind and couldn't do better than .2's with it. Ill admit it was 97% operator error. I'm still attempting to learn to read wind. I'm giving up about 300fps by using win 748 powder but its definitely shooting well. If I want more velocity, I need a different powder. I can't go any higher with 748 because I'm out of case capacity and I'm using a drop tube as it is.
And trigger (my dobe) wore himself out running around so he will be nice and calm for another day or two.
Can't think of a better way to spend a Sunday.
good choice of rest[;)] I bought mine when I was shooting matches heavy,..but since child #2 7yrs ago,..time is at a premium
Is that a McMillan A2 or A3 stock? I tried one, didn't like the forearm width. Wouldn't ride the bags very well. I did like it for offhand work, though.
that rifle was the benchrest rifle,..rem700 with all the work done, hart barrel, tight chamber with .336" neck at 1:11.25 twist. I changed the stock, installed the IOR rings/base/scope, and voila, a tactical rifle, albeit a little more finicky to load for with the tight neck.
here she is holding a more appropriate stock
that's a slick lookin rig BTW,..I have shot against a bunch of guys at 600yd matches using 6PPC's.[:0]
MRP, how do you like the tucker conversion?? I have seen some at the matches and wondered.
that's a slick lookin rig BTW,..I have shot against a bunch of guys at 600yd matches using 6PPC's.[:0]
thanks. For me, I'm on the fence about the tucker conversion. I have an extremely difficult time locating the target through this scope and i suspect that the tucker conversion adds to this difficulty, Although not the sole cause. I Dont shoot in competitions but understand the goal of being able to see your flags through your scope. I think it would work great for that, but I Dont set my flags up to do that because my other scopes do not have the tucker conversion and I switch rifles often. For my case, if my scope hadnt come with the conversion already done, i would have never done it. im sorry I can't really be of more help on this one.