Deputy819
Well-Known Member
Just some "food for thought"…
It's definitely doable. ES/SD doesn't always mean small. It's nice if and when it does.I've seen people reporting an ES of like 4....then they show their garmin screenshot and its 2 shots, Lol.
I couldn't agree more. I also agree that if you used statistics for every variation in a load you'd burn up your barrel before you found the perfect combination.for any method one chooses, there will be people to argue against it, yet thousands of people have results that work for them.
So how did you run the tests? One shot at a certain grain weight, then up it .3 gr for ten more shots? example 78, 78.3, 78.6, 78.9, 79.2,...........Took my Bergara HMR 300WM out today and after sighting it in with factory ammo (Federal Fusion 180 gr) I proceeded to run 2 Satterlee test using IMR4064 and H1000. Wow what a big difference. The 4064 was all over the place with velocities. The H1000 though gave me 2 nice flat nodes but the best was between 81 and 81.5 gr. The average difference between those two charges was 3 fps (3104 - 3107)! I'm going to charge a few with 81.3 gr once I get back from FL in the spring.
I shoot off a portable table and use a Caldwell Stinger rest because I shoot about 1/2 mile from my house at an old abandoned strip mine. After I was done sighting in and doing the test I turned the dial up 4.25 MOA and centered a 12" or so diameter rock I previously ranged at 297 yards (I often shoot it with my 6.5CM). With the Federal 180s I center punched it watching the cloud of white smoke appear around it. The Federals chronographed at 2930 fps.
Would you be willing to share your data?2 rounds each charge.0.5 gr between each for 10 different charges. Chronograph 10' from muzzle. Distance doesn't matter as I was not checking accuracy only velocities.
Those that say it doesn't work have their opinion just as I have mine and I believe it does eliminate a lot of loading guesswork.
I won't argue with them and just use my experience from past lessons learned.
Sure average of 2 shots in 0.5 gr increments: (GR - Vel);Would you be willing to share your data?
could you give me the individual shot velocities?Sure average of 2 shots in 0.5 gr increments: (GR - Vel);
77 - 2889, 77.5 - 2967, 78 - 2984. 78.5 - 2999, 79 - 2983, 79.5 - 3017, 80 - 3058, 80.5 - 3082, 81 - 3104, 81.5 - 3107
Note: My manuals referenced used a 24" barrel and the velocities were a bit less. But with my 26" barrel the increase seems about what it should be.
Caution: My last load is over max but I was checking for pressure signs as I went. I probably could have gone even higher but I didn't feel the need to.
This is where I get the heartburn from guys saying it doesn't work. It seems they are using it and basing their opinions on the wrong reason. A particular shooter, when all the stars line up, will shoot a 1/4" group and say "aha, I found my load". The problem is can this same shooter consistently shoot 1/4" groups with that load or only occasionally and under ideal conditions. Maybe yes but more likely no. Now sometimes a person can get lucky.There's lots of us out there that have had consistently good results with it. However, others have not. Might not get you groups in the 0.1" range but seems to pretty easily get a lot of folks 0.1-0.2mils…which is fine.
I don't suggest you try IMR4064. If you want to try an IMR powder try IMR4350. But IMO I believe you'll have better success with H1000.I think I'll try H1000 next been using 7828ssc behind 210 gr SMKHPBT good BCs and carry farther. Mostly target though at longer ranges. I have not tried IMR 4064 before. Another reason I like this site you can always glean something out of the conversations.