Picked up a 5.56 AR recently (Stag 3L). Got some inexpensive ammo to use for it to build up a brass supply. Will begin reloading soon. I've never reloaded for a semi-auto. Can I just put a sized case in the chamber and let the bolt slam home to verify I'm sizing the case enough; same as I'd do for a bolt gun?
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Resizing for AR
- Thread starter Natty Bumpo
- Start date
Re: Resizing for AR
Not recommended. Spend the money and buy an RCBS Precision Micrometer. Bump the shoulder at least .003" (most recommend .005") and seat the pimers at least .003" below flush. You should be reloading with a good FL die and might have to use a small base die depending on your chamber.
Not recommended. Spend the money and buy an RCBS Precision Micrometer. Bump the shoulder at least .003" (most recommend .005") and seat the pimers at least .003" below flush. You should be reloading with a good FL die and might have to use a small base die depending on your chamber.
Re: Resizing for AR
If you do that with a long case, you're likely to end up beating the rifle on the ground to get it back out. The RCBS unit mentioned above will work, or a Wilson case gauge.
If you do that with a long case, you're likely to end up beating the rifle on the ground to get it back out. The RCBS unit mentioned above will work, or a Wilson case gauge.
Re: Resizing for AR
A L.E. Wilson case gage (Midway/Sinclair has them) is all you need.
See: http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1520819#Post1520819
for measurements I made tonight using one.
A L.E. Wilson case gage (Midway/Sinclair has them) is all you need.
See: http://www.snipershide.com/forum/ubbthreads.php?ubb=showflat&Number=1520819#Post1520819
for measurements I made tonight using one.
Re: Resizing for AR
Resize your brass with a small base die, load and then check in a case gauge.
Resize your brass with a small base die, load and then check in a case gauge.
Re: Resizing for AR
for the ar we shoot.car-15,have used a set of lee dies for a few years now,just under 3000 rounds now and not even a single hiccup.i just knocked on wood .this rifle has never been a tackdriver but that was not what it was intended for so i just never invested in the upper line of dies.if i was trying to squeeze out all of its potential i would go with some of the recommendations above.
for the ar we shoot.car-15,have used a set of lee dies for a few years now,just under 3000 rounds now and not even a single hiccup.i just knocked on wood .this rifle has never been a tackdriver but that was not what it was intended for so i just never invested in the upper line of dies.if i was trying to squeeze out all of its potential i would go with some of the recommendations above.
Re: Resizing for AR
For those of you with small base dies, please measure fired LC cases and commercial and measure the bases .200 up from rim. I want to see just how small they do size down.
For those of you with small base dies, please measure fired LC cases and commercial and measure the bases .200 up from rim. I want to see just how small they do size down.
Re: Resizing for AR
If you ever get one stuck, the case gauge will seem really cheap. Start out right the learning curve is less painfull.
If you ever get one stuck, the case gauge will seem really cheap. Start out right the learning curve is less painfull.
