Free: Contests & Raffles.
Quote from: Jonathan_S on July 19, 2018, 01:20:02 PMHonestly I used an old and very precise balance beam that I later compared to a $300 digital scale. No difference I could find.same results here. Balance style are the most consistent. Unless it’s covered in dust or getting some wind from a fan or open window. To the op. This may help you out a bithttps://m.youtube.com/playlist?list=PLX2aeFXzRrvfwdl-35vchJhAMdptqoykW
Honestly I used an old and very precise balance beam that I later compared to a $300 digital scale. No difference I could find.
I guess I'll be the first one to ask, what's your current load that's giving you the high ES? Odds are that you just need to switch powder.I've never had a problem getting single digit SDs and an ES of less than 15 using some of the cheapest components I can find. I have a pile of Lee dies, use an old Lyman 505 scale I picked up at a garage sale 10 years ago, anneal whenever I feel like getting around to it, never weight sort my brass, refuse to clean or uniform primer pockets, tumble my brass in the same corn cob/walnut mixed media I've used for the last 3 years, and I'd rather amputate my own arm with a dull hacksaw blade than trim cases.Where I focus my attention is on picking the right powder for the load I'm trying to come up with. I'll take a 100% case fill over an extra 50 fps any day. With the exception of plinking ammo for handguns and the kids, I weigh every powder charge that I throw and then trickle in the last few granules until I'm happy.When seating bullets I always seat the bullet half way then rotate the case 180 degrees in the shell holder then seat it the rest of the way. I'm also very consistent with seating pressure. Bottom out the press handle with the same slow and steady force every time.Don't focus on equipment, focus on technique and using the right components. Using the right powder, right charge and the right primer will help your consistency more than any gadget or trinket somebody tries to sell you.
The very first thing I would try is fire some rounds and don’t clean them in the SS media. I have found they clean all the carbon out of the necks and make things really inconsistent. Leave that carbon in there and just run a nylon brush through it. You’ll be surprised.
My pro chrono was junk! Accuracy or the pro chrono is +/- 2% if I remember right. It will get you close but not accurate enough to go by es or sd. 1% of 3000fps is 30fps. How can it give you even close to an accurate sd
Quote from: hogslayer on July 19, 2018, 02:00:08 PMThe very first thing I would try is fire some rounds and don’t clean them in the SS media. I have found they clean all the carbon out of the necks and make things really inconsistent. Leave that carbon in there and just run a nylon brush through it. You’ll be surprised. Love my ss pin cleaner. Like the shiny new brass results. Wish I could use it but stuck with 0000 steel wool and nylon brush with graphite to get consistency.
Quote from: birddogdad on July 19, 2018, 01:29:49 PMall things loaded consistently, and by lots . Next that will help most is NECK TENSION . setup your dies with proper expander balls or bushings or both.... (if you run those) to set 2 or 3 thou. same every time on the squeeze.. remember hardened cases affect this as well. If your going to go long, i would look into annealing processes. you should be able to get close to inside 10 for SD/ED. Remember its a bearing surface, clean area, amount of coverage (length trim), wall thickness and hardening/working metal ect .. it all plays...oh i will also say for a 7mag at 1Kyds.. you will kill everything you aim at with a 30 SD too.. they shoot pretty flat..... not gonna be that much off....An sd of 30 would mean an Es of 60+ fps. That difference would be fairly large on target at distance.
all things loaded consistently, and by lots . Next that will help most is NECK TENSION . setup your dies with proper expander balls or bushings or both.... (if you run those) to set 2 or 3 thou. same every time on the squeeze.. remember hardened cases affect this as well. If your going to go long, i would look into annealing processes. you should be able to get close to inside 10 for SD/ED. Remember its a bearing surface, clean area, amount of coverage (length trim), wall thickness and hardening/working metal ect .. it all plays...oh i will also say for a 7mag at 1Kyds.. you will kill everything you aim at with a 30 SD too.. they shoot pretty flat..... not gonna be that much off....
Quote from: jasnt on July 19, 2018, 07:47:50 PMMy pro chrono was junk! Accuracy or the pro chrono is +/- 2% if I remember right. It will get you close but not accurate enough to go by es or sd. 1% of 3000fps is 30fps. How can it give you even close to an accurate sd Most folks don't need to buy a high end chronograph like a Magneto or Labradar because they only need to use it a couple time per year. Your best option is to track down somebody close to you who'll let you run a couple shots over their chrony. Back when I shot primarily standard chamberings and not-so-wildcats I'd just shoot for accuracy and use a chrony to get a rough estimate on my velocity. From there all my data came from actual drops. When I got into more radical wildcatting I used a chronograph to help me gauge my pressures. At that time I used an Oehler 35p and I hated that thing with a passion! Newer chronys like the Magneto sporter are priced so that a couple of buddies could all pitch in and get one to share without breaking the bank.
Quote from: yorketransport on July 19, 2018, 06:49:21 PMI guess I'll be the first one to ask, what's your current load that's giving you the high ES? Odds are that you just need to switch powder.I've never had a problem getting single digit SDs and an ES of less than 15 using some of the cheapest components I can find. I have a pile of Lee dies, use an old Lyman 505 scale I picked up at a garage sale 10 years ago, anneal whenever I feel like getting around to it, never weight sort my brass, refuse to clean or uniform primer pockets, tumble my brass in the same corn cob/walnut mixed media I've used for the last 3 years, and I'd rather amputate my own arm with a dull hacksaw blade than trim cases.Where I focus my attention is on picking the right powder for the load I'm trying to come up with. I'll take a 100% case fill over an extra 50 fps any day. With the exception of plinking ammo for handguns and the kids, I weigh every powder charge that I throw and then trickle in the last few granules until I'm happy.When seating bullets I always seat the bullet half way then rotate the case 180 degrees in the shell holder then seat it the rest of the way. I'm also very consistent with seating pressure. Bottom out the press handle with the same slow and steady force every time.Don't focus on equipment, focus on technique and using the right components. Using the right powder, right charge and the right primer will help your consistency more than any gadget or trinket somebody tries to sell you.Theres no load yet, its just something I've noticed with my loads in the past.I have the ProChrono as well - I do quite often get "duplicates", however most have come with factory ammo.I may try picking up a different powder trickler as well. The one I have came with the kit, so if its like most of the other stuff theres probably better out there. I know it isn't going to make a difference, but it might be easier to trickle the charges up than it is now.I will try rotating it 180 as you mentioned.One thing that I've had trouble with is getting the bullet seated to the proper length every time. I'm forever adjusting the die itself to make sure its the right depth.