accuracy between powder measures

[langenc]

Wool I just switched from a Lee perfect powder to a RCBS uniflow. So far with H335 the RCBS is better by a long ways. The Lee drums get clogged up with small powder and has to be emptied and cleaned out, or that was my case. The RCBS was throwing charges dead on for 20 charges for me earlier and I was much happier.

For the money the Lee is good but isn't built very well in my opinion. Cheap feeling

I used my RCBS today for the first time in a while. Loaded 150 223 loads. All were within 0.1 grain. I weighed the case, charged and then reweighed after getting set up.

After a while I weighed about every 6 to 8th--H 335 24 gr charges.

 

[corsair4360]

Rather than start a new thread I am going to post my results of powder measure accuracy from today. I was loading 338 Winchester Magnum cases with RL-19 67.5 grains (yes a hot load, but my rifle likes that based upon testing). The important part is the loads were first measured with a RCBS Chargemaster at the 67.5 grains. I bought a new A&D EJ123 scale and measured each chargemaster charge with the new scale. 10 charges on the new scale weighed 67.64; 67.62; 67.8; 67.58; 67.62; 67.72; 67.74; 67.76; 67.82 and 67.92. The average weight thrown was 67.7 grains, not the desired 67.5 grains. I have seen some results in target shooting with the rifle (load testing) that suggested powder charges were not consistent. Now I have data that says they were not consistent. Just my two cents.

 

[nmkid]

Well like everybody else I do talk cr*p on occasions especially on our so-called 'leaders', and especially when I've imbibed a little too much alcoholic liquor (Hic!) No offence understood or taken, my friend.

When I lived in Wyoming we called them guys, "meadow muffins". Or road apples!

 

[Laurie]

When I lived in Wyoming we called them guys, "meadow muffins". Or road apples!

Hey I like that term! [Job interviewer: "How would you describe yourself Mr. H?" Me: "I'm just an old meadow muffin, Sir."]

Always was full of it and never able to restrain myself from taking the p*ss when an opportunity appears in front of my eyes no matter who the other person is. I'd never survive in today's world of work!

 

[powderbrake]

I have tested my Dillon measures, an RCBS, a Harrels, a Lyman 55, and a Niel Jones conversion with various powders. I tested with either 50 or 100 throws and weighed every throw. At their best, all of the measures threw plus or minus .2 grains from the setpoint. We are talking rifle sized loads with various rifle powders which I use, and returning the charge to the hopper to keep the same conditions.

I was looking for the deviation from the desired load, averages mean nothing.

There is a lot of "technique" in operating a measure, and some people can do better than others, but for me, that's the best I can do. For this reason, I consider any powder measure a +- .2 grain device when I am operating it.

So for load development I use a RCBS Chargemaster or a A&D FX120i with Autothrow and Autotrickler. For actual loading in quantity, I use the throwers or the tricklers, depending on the level of accuracy I desire. The throwers are within .2, the Chargemaster within .1, and the A&D is within .02.

 

[Laurie]

There is a lot of "technique" in operating a measure, and some people can do better than others, but for me, that's the best I can do. For this reason, I consider any powder measure a +- .2 grain device when I am operating it.

I'm afraid that's what I found too overall with 308 Win and larger cartridges sizes in all the testing of measures I've done.

 

[STS]

I have a Culver and a Harrells and neither one of them will dispense powder as consistently as the Belding and Mull measures that I have. The B&M measures are not as convenient to use as the others but the performance is better.

 

[Dusty Stevens]

I can throw within .1 on a harrels, neil jones, redding br or rcbs quick change. All it takes is technique practice. Remember any vibration on the measure changes how much powder is packed in the chamber. Consistency is the key plus powder kernel size. Cutting kernels shakes it up real good

 

[A j shooter]

I have a Neil Jone dispenser and it is by far the best I’ve used.
I’ve had a harrels and a culver my SD went down with the Neil Jones.
I quit using my charge master to slow .
Now that’s with the PPC and BR.

 

[JMayo]

My lee does fine. I use my scale and know my kernel weight count, trickle up.