2 Questions - Resizing & Load Info

[EddieCoyle]

Hi all.

I'm going to load some 10mm and have a couple of questions.

1. I bought 1000 brand new Starline 10mm brass from ebay. Do I need to resize these before loading them?


2. I also bought some hard cast 180 gr lubed lead flat point bullets. Can anyone recommend a good target load? I have several manuals and cannot find a load for 180 gr hard cast lead. I have yet to purchase primers or powder.

Thanks.

 

[HSMITH]

Yes. You need to size them.

You need at least 2 good manuals for data, and three is better. Speer and Lyman are two good ones to start with, get the latest versions. For a third pick another mainstream manual.

Two sources of data is the minimum, three is better. If you have a conflict in the three then try to find a fourth source.

Reloading is pretty basic, and too simple to allow a lack of prudence to cause a problem.

 

[EddieCoyle]

Two sources of data is the minimum, three is better. If you have a conflict in the three then try to find a fourth source.

Reloading is pretty basic, and too simple to allow a lack of prudence to cause a problem.

Thanks for the sizing info. I'll do the extra step. I have more than three sources of of data - Speer, Lyman, a bunch of .PDf's that I've downloaded from the powder maufacturers, as well as an old Herter's book that came out before the 10 mm existed. None of these has data specifically for hard cast 180 gr bullets.

I'm not imprudent. Please don't assume that anyone new to reloading is careless, lazy, or cheap. I have a number of manuals and plan to add to my collection gradually. Instead of investing hundreds of dollars in reloading manuals on the off chance that I'd find one that has data for 180 gr hard cast lead in a 10 mm, I figured I'd post here to at least give me a source or something to cross check against. Thanks for the sizing info, and also for telling me how basic and simple reloading is, and for reminding me that because I asked a question that I lack prudence.

 

[HSMITH]

I apologize profusely if I offended you, I did not intend to make you out to be a reckless reloader or anything of the sort. My point was intended to be a caution, and that is all.

Alliant lists 8.7 max with Power Pistol, 1.25" min OAL and a Fed 150. 7-7.5 should be a nice target load.

The same specs with 6.5 grains of Unique would be a good start if the Power Pistol load leads the barrel.

5.5-6 grains of Bullseye would be a nice target load also.

All loads listed are about 40 S&W levels or just slightly higher.

 

[Dave P]

I just picked up some AA#7 to use for 10mm. Pistol is not here yet , so I don't know how well it works ...

 

[YellowLab]

I'm not a big supporter of the unwritten '3 manual rule'.

Buy ONE book, READ it.

The loads now a days are all time tested and proven. Looking at 3 different sources will simply yield 3 different, yet similiar numbers.

Buy an up to date manual.. Lee's Modern Reloading 2nd Edition has LOTs of loads for LOTs of bullets.

There are other more expensive manuals... just make sure you get a manual with the calibure you want to shoot.

 

[Jim Watson]

I don't load 10mm but a look in Lyman 47 shows data for 175 and 200 grain cast bullets. If I had some 180s, I would start out with data given for 200 gr bullets and increase until I had all the fun I wanted but stopping short of the loads listed for a 175. But I don't demand utter maximum power and I do have a chronograph, which makes me somewhat independent of precise recipes.

Lee data is what the powder companies had out at the time the book was written. It is handy and safe but it is a very rough guide to what you can expect. Since they are all using different test gear and probably different components, results are not directly comparable.