What's your tolerance

[BT8850]

When you're loading your practice/range/low-mid power ammo, How closely to you keep your tolerances in OAL +/-? Do you weigh every charge or every 2, 3, 4, 5 etc? I'm starting to develop how I load, everything I've done has worked very well so far as all I've loaded is low power to stay safe, and I was curious what habits you guys keep when loading! Mind you this is for target/plinking around/paper slaying ammo not your highest quality super precise max load (unless that's all you load).

[sqlbullet]

1.250 +0 -.003.  I do this as I have one gun that just plain won't run with ammo over 1.250.

I charge 50 or 100 cases, depending on the ammo case they are in, then check every tenth for accuracy.  I generally want ±.1 grains.  If I exceed that, I will usually increase scrutiny to every fifth case.

[475/480]

I run a RCBS 2000 progressive.
On O.A.L the 200 gr cast bullet load I shoot will run perfect at 1.245" in all my 10's so I make sure they are at 1.248" or less. Powder charges are AA9-11.0gr so I make sure it is less than +0.3gr and all is good for me. This load is medium so if it goes a little high (+0.3) that is OK with me. I check the powder charge every 8 or so rounds just to make sure they are within my limits.


Sean

[The_Shadow]

I have been hand weighing each and every load, just because I can, for me it is not about reloading speed!
Some of the loads I work with are near the upper edge of performance, some are target play and others just a run of the mill.
One thing is for certain, they are what they are suppose to be!

I work to the 1.2500" for most all of my 10mm rounds, I have loaded longer for initial pressure test, gradually shortening for further testing.  Some wider nosed HP's and larger Meplat solids tend to feed better at shorter COAL.

One thing that has been the biggest improvement, has been the use of the "Pass-Through" sizing step.  It reconditions the brass back in shape, where normal sizing dies do not reach, it also seems to squeeze the primer pockets back to normal size to hold primers better, it also makes them more uniformly round even at the extractor rim.  While not as quite as good as new, they are reconditioned to a better state.

It has been said "I am Anal"  but this system works well for me!

[The_Shadow]

There are places that sell used brass which are roll-sized in a Scharch Roll Sizer, however if you are not visibly looking for damage and or "SMILEs" they could be masked by being run through these machines.  A casing that should have been discarded may be go unnoticed...

[BT8850]

1.250 +0 -.003.  I do this as I have one gun that just plain won't run with ammo over 1.250.

I charge 50 or 100 cases, depending on the ammo case they are in, then check every tenth for accuracy.  I generally want ±.1 grains.  If I exceed that, I will usually increase scrutiny to every fifth case.

I run a RCBS 2000 progressive.
On O.A.L the 200 gr cast bullet load I shoot will run perfect at 1.245" in all my 10's so I make sure they are at 1.248" or less. Powder charges are AA9-11.0gr so I make sure it is less than +0.3gr and all is good for me. This load is medium so if it goes a little high (+0.3) that is OK with me. I check the powder charge every 8 or so rounds just to make sure they are within my limits.


Sean

Sounds like I load similar to you guys, usually try and keep a good +/- .002 or 003 on OAL, It's easier said than done with powdercoated bullets LOL

475/480, I can imagine the powder charges are a little trickier to keep tight on a progressive but like you said, midrange charge so a tad high id assume is still on the safe end.

I use the RCBS uniflow and 505 scale that came in my kit and try and keep things like around +/- .1g. I've only used unique and longshot powder so far and found that for me the longshot flows dang close to perfect every time when I operate the thrower consistently. What type of scale and powder thrower do you use sqlbullet?

I have been hand weighing each and every load, just because I can, for me it is not about reloading speed!
Some of the loads I work with are near the upper edge of performance, some are target play and others just a run of the mill.
One thing is for certain, they are what they are suppose to be!

I work to the 1.2500" for most all of my 10mm rounds, I have loaded longer for initial pressure test, gradually shortening for further testing.  Some wider nosed HP's and larger Meplat solids tend to feed better at shorter COAL.

One thing that has been the biggest improvement, has been the use of the "Pass-Through" sizing step.  It reconditions the brass back in shape, where normal sizing dies do not reach, it also seems to squeeze the primer pockets back to normal size to hold primers better, it also makes them more uniformly round even at the extractor rim.  While not as quite as good as new, they are reconditioned to a better state.

It has been said "I am Anal"  but this system works well for me!

Nothing wrong with being super particular! If I was working with some of the loads you do I would do the exact same thing. You've still got all your digits and all your firearms are in one piece so being particular must be working  when I first started this reloading endeavor I weighed every single charge and measured everything twice or 3 times. Now i've gotten slightly more comfortable and have for the most part gotten the hang of the uniflow so i'll check maybe every 3 or 4 cases, or check one in between if it doesn't feel or look right. Since i'm using start or only .2 or .3 over start charges, I'm more comfortable.

No doubt about the push through sizing. You reccomended it when I first started and I'm glad I listened, I went on a sizing spree and did all my 40 and 10mm cases and they do come out great. I loaded 2 rounds using casings that were only sized with the regular sizing die and you can definitely tell the difference when priming them (i use the hand tool from the kit) and also once in the chamber. Great advice!

[tommac919]

On my everyday target loads... I run 1.250 +/- .002  .... this is a bit of a fudge factor as the remington fmj have a sort of dimple on the top. ( if you've seen them, you know)

As to powder, I've love to stay within .1gr but with the auto press it runs +/- .2 grs.    Since I'm running 10.3gr , it can vary between 10.1 and 10.5.
Not a problem as max for the load is 11grs and doesn't effect the accuracy with a stock glock barrel.

If if goes bang and falls in the 5" target, I'm happy!

[445 supermag]

I have been trying to find out why my OAL varies wildly.  But Googled and tightened up shell plate so will see if it's better.  But i would love to have tight tolerances but I am working it out now.  But my reloads have been steller accurate.

Brian

[attrapereves]

I try to stick to 1.250" +/- .003. I reweigh a test round about every 50rnd. I don't mind a .2gr deviation for slower powders like AA#9 and N105.

[Geeman]

For powder, I use an RCBS Loadmaster which weighs every charge, so .1g variation total.  Its just how I'm used to loading now days.

For length, 1.250, set it, and forget about it.  It fits in my magazines and I'm not going to change it once its crimpped anyway.   I can't say + of - because I simply don't check once the die is set.

Greg