Previously Gary Wilson
Glock 26, Glock 23, S&W K-22, Ruger 10/22, Remington 597, Howa .270, Several other hunting rifle
How do I know the OAL and the Powder charge?
Run them a little shorter. I need to run 40-195G's at 1.240 absolute max to work in my mags in 10mm. Make a primerless dummy round long 1st. Slowly seat deeper until it passes plunk test 2nd. Confirm you can fill mag at that oal 3rd. Work up load from there. I run mine as long as possible while being able to fill mag.How do I know the OAL and the Powder charge?
Ok. I need to admit I had to look and find what a plunk test was, but it really makes sense with my question. As far as charge weight and OAL, I guess what I was asking was if there's any rule of thumb (like: use a round tipped bullet and subtract X, or something like that. However, the plunk test will tell me what I need to know as far as OAL. I have found some bulk bullets and I don't know the manufacture of them. But, I haven't ordered them yet, either.OAL is whatever it takes to case gage, and plunk test in your gun. Maximum is only what will feed thru a magazine.
Charge weight? First need to know what caliber. Powders that work in 9x19 standard loads will not work in 357REM MAG or .357SIG or 10mm, they need low density, high volume, slow burning powders. And then bullet weight and construction. Has nothing to do with geometry. FMJ"s, HiTek coated, powder coated, PolySynTech, moly lead or cast lead. And weight, for example 9mm. 115/125/147/160 grains? All different charge weights.
And don't make up 2,000 rounds off the get go. Crank out 20 or so, and function fire them first before going into full production.
And this answers the powder charge question. Thanks!In general, any charge weight will be fine with any bullet wt IF, the bullets are the same construction. The only thing that really changes is OAL. OAL will always be bullet & bbl specific. So regardless of the data, you still have to make the OAL fit your gun with your bullet.
If you are loading a bit shorter than the book, you will need to reduce the charge a bit. If loading longer thant the book, you should be fine, as long as you are not into the lands & it feeds in your mag.