AlNyhus
Silver $$ Contributor
Casey is a really solid guy and couldn't have been nicer to deal with.
Good shootin'
-Al
6PPC test drive
- Thread starter AlNyhus
- Start date
Good shootin'
-Al
Jud96
Site $$ Sponsor
Very nice! I like seeing a no turn shoot so wellYep. Just poured 'em out of the box, ran 'em over a .240 mandrel, chamfered necks, checked the flash hole diameters and shot 'em. The shoulder is .008 short of this chamber so they blow out beautifully. Neck dimensions over the pressure ring of the BIB .790" 65's is .2662.
Good shootin'
AlNyhus
Silver $$ Contributor
I've got one case that I use as a fouler, to get on paper with and before each group just to get a feel for case life. So far, it's been fired 16 times and it's in great shape. -AlVery nice! I like seeing a no turn shoot so well
Jud96
Site $$ Sponsor
Very impressive!
Larry Koch
Silver $$ Contributor
Fill the case full with 133 and tap it down so there is a little room for the bullet.
weight the charge. And that should be your powder dispenser setting.
weight the charge. And that should be your powder dispenser setting.
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AlNyhus
Silver $$ Contributor
Todd, after finding the 'T.P.' (touch point) with the BIB 65 bullet (stripped bolt 'Wheeler method'), the seater stem length was recorded. For the load work, the seating stem was made .008 shorter. Neck tension was .003. Powder charges started at 28.0 and went up in .3 gr. increments. There was significant vertical .3 gr. on each side of the shown group so clearly there's more work needed. This initial outing was just to get some sense of the barrel and bedding. Next time out will be seating depth changes to see what happens.
Honestly, I'm not a particularly good 6PPC tuner. I've had some good ones in the past and they've always driven me crazy trying to keep them in tune from day to day. Which likely says more about my abilitiy to tune them than the guns themselves. This method I used might be totally out to lunch from how really savvy 6 PPC tuners approach it.
Good shootin' -Al
wildcatter
Silver $$ Contributor
Sounds to me like you are on the correct track for developing a load as most advanced tuners work with the ppc for competition.
Every top shooter I know that use a 6ppc for competition work thier load development in much the same way. Some have different opinions on finding the touch point, or where to start with seating depth. But which is optimum is debatable.
On a custom I prefer to use Speedy Gonzals technique of finding touch. But unlike the Wheeler method, it requires the barrel being removed from the action.
But I think once they find it, and choose thier starting depth, much like yours, which I believe is starting .008" into the lands. Most start .008" to .015" and after your steps from 28.0 to 28.5 is where most start.
But then like you, when that optimum group is found start backing out "coming out of the rifelings". Stressing no more than .003" at a time.
Then when they have achieved best again, will work with charges .1 to .2 grains at a time each way at that seating depth that is now considered THE seating depth.
But as you said, they never consider that poder charge as THE powder charge. Powder charge is what most consider the day to day tuning tool.
The one thing every one of them preach is KEEPING RECORDS! Anal records, humidity, temp, barometric pressure, elevation, sun, clouds, and always wind. As most agree, N-133 is the powder of choice for this cartridge, but being able to keep it in tune is a challenge, and like you, what I struggle with.
It looks like you have a good handle on a great start with the new rifle AL. Please keep us informed on you progress and methods, it is appreciated.
Every top shooter I know that use a 6ppc for competition work thier load development in much the same way. Some have different opinions on finding the touch point, or where to start with seating depth. But which is optimum is debatable.
On a custom I prefer to use Speedy Gonzals technique of finding touch. But unlike the Wheeler method, it requires the barrel being removed from the action.
But I think once they find it, and choose thier starting depth, much like yours, which I believe is starting .008" into the lands. Most start .008" to .015" and after your steps from 28.0 to 28.5 is where most start.
But then like you, when that optimum group is found start backing out "coming out of the rifelings". Stressing no more than .003" at a time.
Then when they have achieved best again, will work with charges .1 to .2 grains at a time each way at that seating depth that is now considered THE seating depth.
But as you said, they never consider that poder charge as THE powder charge. Powder charge is what most consider the day to day tuning tool.
The one thing every one of them preach is KEEPING RECORDS! Anal records, humidity, temp, barometric pressure, elevation, sun, clouds, and always wind. As most agree, N-133 is the powder of choice for this cartridge, but being able to keep it in tune is a challenge, and like you, what I struggle with.
It looks like you have a good handle on a great start with the new rifle AL. Please keep us informed on you progress and methods, it is appreciated.
Bill Norris
Back in the Day
This is the carbon trace I like to see on my brass. I have read and heard some shooters say they want to see a solid carbon line around the necks in that it shows a proper gas seal. And, that may be true but in my testing the best groups come from the sine wave pattern which I believe gives better bullet release. Jack Neary goes into this detail with Erik Cortina on "Believe the Target" when discussing neck turning.As the wave form shows, it tuned up predictably.
AlNyhus
Silver $$ Contributor
Yes...a shorter seating stem puts less of the bullet in the case neck. -Al
COLT45SA
Silver $$ Contributor
I had a SAKO Vixen in 6mm PPC. Before I reloaded the first cartridge I read everything I could get my hands on about the cartridge. I was shooting SAKO factory rounds. I took very little time when reloading to end up shooting .125" with N133 and a Rem 7-1/2 primer. 6mm ppc is the King~!!This is a new-to-me 6PPC that I test drove this morning.....just an abbreviated test with three shot groups to get a sense of things. RFD LVS, Speedy/Six 'Millenia' stock, a new but unknown maker barrel with a .269 Shelley Davidson chamber. Things came around pretty quickly as this was the fifth load up the ladder. Brass was new unfired out-of-the-box Norma 6PPC. There's a little vertical in there so next time out I'll move the bullet around .003 at a time and see what shakes.
Good shootin' -Al
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AlNyhus
Silver $$ Contributor
Out this morning to work with seating depth. The first two groups on the right are f-forming brass with a light jam/seat and a bit of Marvel Mystery Oil on the cases.
Winds were 8-10 from the 3 o'clock with an occasional lull. On the third groups from the right, it put four into a nice little hole. Since this was a good opportunity to see if the load went with the conditions, I waited for a couple of minutes until the tails went limp and fired the fifth one...which went out to the right as it should have.
On the last group (left side), I gave the scope two clicks up and shot five with the tails lifting about 30 degrees up. It acted just like it should have.
Next time out, I'll lean on it harder and see what happens north of where it's at now.
Good shootin' -Al
Winds were 8-10 from the 3 o'clock with an occasional lull. On the third groups from the right, it put four into a nice little hole. Since this was a good opportunity to see if the load went with the conditions, I waited for a couple of minutes until the tails went limp and fired the fifth one...which went out to the right as it should have.
On the last group (left side), I gave the scope two clicks up and shot five with the tails lifting about 30 degrees up. It acted just like it should have.
Next time out, I'll lean on it harder and see what happens north of where it's at now.
Good shootin' -Al
I like this idea, not sure I've heard of someone doing this before. Nice shooting.On the third groups from the right, it put four into a nice little hole. Since this was a good opportunity to see if the load went with the conditions, I waited for a couple of minutes until the tails went limp and fired the fifth one...which went out to the right as it should have.
AlNyhus
Silver $$ Contributor
For me it's an easy way to see how stable a load is. Over flags, if the bullet doesn't go with the conditions...there's something badly wrong. -Al
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