Well bud, you sound like you got it all figured out. So kinda confused on why you asked advise.

But all I know is I can load 180gr partition to 3.34 with 77gr of RL22 with remington cases. And still not really compressed.

I know I learned a long time ago. digitals can get ya in trouble. But you got it figured out.

Thanks for you comments. I mainly was trying to determine if what I was doing was doable or if someone else had loaded 180swith RL22. Sometimes I try things that will never work. Also, the previous attempt at loading 180s was before I bought my Stoneypoint COL measurement tool. I don't see how I gat along without that.

Ohaus makes an excellent scale, mines a Dillon-Ohaus eliminator its as accurate as a scale can be. To be honest Id be very reluctant to use anything else other then a Ohaus scale.

hey its your gun and your life, but id be extremely leary about calling that a safe load... from what you explained in prior posts i tryed to mimick your situation I filled a winchester 300wm case accordingly to how you explained what was happening to you with not being able to seat the bullet and then I weighed the charge it had come out to 78.9 grains your gun might handle that I dont know..... but IMO its playing with fire and you might get burned literally!! just because your scale is zeroing out with your check weights doesnt mean its zeroed. id seriously check the charge with a beam scale just to be sure....

a thought i had today, do you use calipers to check your case dimensions after sizing or do you just size them and go?? what brand of dies are you using? the die could be off and might be sizing the brass below dimensions. kind of a shot in the dark i dont really think a die could possibly be off that bad to effect case capacity that badly but heck you never know....

another thought I had was are you sure you have a 300 WM and not a
300 WSM???

I think the problem was that I was trying to load 75-77 gr RL22into a 300 WM and seat the bullet (180 gr AB)to the standard 3.34 inch COL. Then I purchased a StoneyPoint COL gauge and measured the length. I don't remember what it came up with but it was a lot more than 3.4. So I loaded a few to fit my chamber only to find out that they would not fit in my magazine well. Actually the tip of the bullet caught on the front of the receiver when trying to eject the full round. So I measured the length that my mag well would accept and found that to be 3.495. Now I need to load a few rounds at 3.495 and see how that works.

I think this might work OK for 180s. I would like to load 200 Nosler Partitions also. Since they are somewhat shorter that the ABs, maybe it will be OK.

After using a Stoney Point gauge, I don't see how a reloader gets by without one.

The 3.4" standard is to the tip. Not with a Stoney point. The measurements you get with a stoney point are only for your own personal record keeping to you can duplicate that load next time. Also, 200gr partitions might have .1" of the tip gone but still probably same length as 180gr accubonds.

I dont have one of those stoney point tools, and I get along fine. Honestly they look like a good tool to have but sofar I have not needed one. And I reload for 8 different rifle calibers.

HDW, the only place they are handy is bullets like a partition or corelok with a lead tip that deforms. And duplicating your old load can vary up to .06". Because you set up your seater based off that first bullet. Bullets with polymer tip like bullistic tips, you don't have to worry so much.

Other than that, just another thing

LOL another thing got lots of those. like a shell trimmer pilot for 45 acp, easily 5,000 rounds of 45 acp handloads later still havent used it. Ive had 45 acp cases split way before they needed trimming.