What velocity out of 6ppc using 65 gr SMBT
- Thread starter ShtrRdy
- Start date
jackieschmidt
Gold $$ Contributor
Well, I kinda hate to recommend what many of us call the “upper load widow”, surprisingly used by quite a few top level competitors.
3400+ fps is pretty common in that world. The 6PPC likes pressure, lots of it.
I shoot my own 68 grn flat base between 3400 and 3450. With the 6PPC fire formed from Lapua 220 Russian brass, that’s the sweet spot.
3400+ fps is pretty common in that world. The 6PPC likes pressure, lots of it.
I shoot my own 68 grn flat base between 3400 and 3450. With the 6PPC fire formed from Lapua 220 Russian brass, that’s the sweet spot.
Dusty Stevens
Shiner
Dont look for velocity- look at a hot load that shoots good. Leave the chrono at home for load testing
Tim Singleton
Gold $$ Contributor
With 220 Russian brass for a PPC
It won't hold enough N133 to cause a problem. A lot of people worry about shooting it too Hot
The important thing is finding a load in the upper window that is in tune for that day
an in tune 3500 load is gonna be better than an in-tune 3350 load IME, especially at 200yds or further
Don't worry about too much 133 you can't put too much
It won't hold enough N133 to cause a problem. A lot of people worry about shooting it too Hot
The important thing is finding a load in the upper window that is in tune for that day
an in tune 3500 load is gonna be better than an in-tune 3350 load IME, especially at 200yds or further
Don't worry about too much 133 you can't put too much
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ShtrRdy
Silver $$ Contributor
What velocity did you end up with? How long is your barrel?
Disregard-i see you suggested 3350. Thanks.
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Nick Caprinolo
Gold $$ Contributor
But oh how it will eat barrels.
Ccrider
Gold $$ Contributor
Looking at your post in other threads, I assume you are shooting a Bat or other custom action. The loads recommended would not be safe in factory actions like a Sako.
Being new to the 6ppc and your rifle, you should work up the load in your rifle, rather than assuming it is safe. Some of the guys posting above have been doing this for a long time and know there way around the track blindfolded. I assure you they did not start off shooting at or trying to tune at 3500 fps. Do a search and you will not find many (if any) post that even reference shooting at that speed.
Being new to the 6ppc and your rifle, you should work up the load in your rifle, rather than assuming it is safe. Some of the guys posting above have been doing this for a long time and know there way around the track blindfolded. I assure you they did not start off shooting at or trying to tune at 3500 fps. Do a search and you will not find many (if any) post that even reference shooting at that speed.
ShtrRdy
Silver $$ Contributor
Thanks for the caution. It's a good reminder. I'm not new to reloading but reading Tony Boyer's book and talking to benchrest shooters has presented a different way to approach load development.
I shoot a 64gn Berger @ about 3300fps w/ LT-32 Lot#3. Accurate Arms load data shows to be about
57K-58Kpsi chamber pressure. This load will shoot .3xx" groups at 200yds if I do my part.
Being on the node and reading wind flags and knowing when to pull the trigger is more important than speed. The "Time-of-Flight" between 3300fps and 3500fps is less than .013 of second at 200yds.
I can't stress enough the value of reading the wind flags and that comes from a lot of time at the range.
Good luck and be safe.
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JEFFPPC
Gold $$ Contributor
Well I am not the guy to go to for a deep look at crony numbers. Yes, I have a Lab Radar and know how to use it. No, I do not use it for load development. Yes, I use it about once a year so I can answer the question that always comes up, how fast. It sits with my 2 prior conographs on a shelf 99.9 percent of the time. I load by repeatable groups on paper.
jackieschmidt
Gold $$ Contributor
I only mentioned the Chronograph to put things in context. I could care less what the velocity is.
What competitive Benchrest Shooters do with the 6PPC based on the Lapua 220 Russian case has little to do with the sanity of reloading as expressed in he vast array of manuals that are outside the confines of our minds.
What competitive Benchrest Shooters do with the 6PPC based on the Lapua 220 Russian case has little to do with the sanity of reloading as expressed in he vast array of manuals that are outside the confines of our minds.
Bill Norris
Back in the Day
I started my load work-up at 28.2 gr. with Bart's 68 gr. B T Avenger.
ShtrRdy
Silver $$ Contributor
Go to this thread and read post #27
6PPC test drive
Glad to see you got that gun Al. I was all set up to make it mine and the guy you got it from wouldn't take my payment because it was going to come through the mail.......Looks like it may work out well for you......Congrats. Regards Rick Casey is a really solid guy and couldn't have been...
forum.accurateshooter.com
Bronsin
Silver $$ Contributor
In a modern custom BR rifle, 29.8.
Are these safe pressures only in custom actions?
Shooter13
Gold $$ Contributor
I have 3 PPCs running in that range, 1 is a hummer, 1 is okay and we'll not talk about the other one!
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