9mm Reloading - Seating \ Crimping Question - Page 2

boscobeans · May 10th, 2009, 11:33 PM

As stated by TOF """Don't assume or even accept someone elses statement that X and Y powder are equal. Find a load chart for the specific powder you are using or I reccomend you not use it."""

It is too easy to mess up when trying to equate powders. Example..
Clays is not Universal Clays...

Go with what a reloading handbook or powder manufacturer (geared to the powders in your part of the world) says.

bosco

heylin · May 10th, 2009, 11:43 PM

Not sure if I mentioned but the ammo I refer to as Factory is actually reloaded ammo already, a local gunshops gets once fired winchester brass from police academy and reloads using Lapua 115gr FMJ projectiles.

I have shot about 2000 rounds of it through 3 of my guns with no problems, so my aim is to replicate that reloaded round by using

a) the same brass
b) the same projectile

So all things being equal if I obtain the same powder brand and confirm the powder charge weight with the reloader then by aiming for identical OAL I should have the same ammo that I know works safe and well ?

Will be dragging the calipers out again tonight.

Ghuqu2 · May 12th, 2009, 12:05 PM

Contacted Hodgdon about AP70N and it is Universal Clays. I hadn't noticed your location until the guy at Hodgdon freaked and wanted to know where you got it. But all load data for Universal Clays can be used.

Lee manual:115gr fmj - use same For 115gr GDHP (Hodgdon manual)
start : 4.5gr
max: 5gr
oal: 1.125

Hodgdon manual: 115gr LRN
start: 4gr
max: 5gr
oal: 1.100

heylin · May 12th, 2009, 11:41 PM

My test round came out at 1.14 OAL, ive also loaded at 4.3-4.4gr starting. Does this all sound OK ?

My Lee Perfect powder is quite consistant did 5 lots of 10 test loads and all averaged at 4.3 - 4.4 gr

My 10 test rounds I loaded at 4.3gr weighed individually.

boscobeans · May 13th, 2009, 01:43 AM

Sounds good to me.. Let us know how your test rounds work out.

bosco

sgtD · May 14th, 2009, 10:57 PM

Quote:

Originally Posted by heylin

My test round came out at 1.14 OAL, ive also loaded at 4.3-4.4gr starting. Does this all sound OK ?

My Lee Perfect powder is quite consistant did 5 lots of 10 test loads and all averaged at 4.3 - 4.4 gr

My 10 test rounds I loaded at 4.3gr weighed individually.

Sounds good. Any rounds downrange yet????

heylin · May 15th, 2009, 12:37 AM

Quote:

Sounds good. Any rounds downrange yet????

Nothing downrange yet, going to take them out this weekend and test, all going well I can start production and get a quantity into my stockpile.

Got about 500 rounds sized, belled and primed ready to be charged.

Will try and remember to bring my camera and take some photos of the results.

Now which gun to use

or mabey destroy if my scales were wrong

boscobeans · May 15th, 2009, 12:45 AM

That little Lee scale that came in your kit is plenty accurate..

Have a blast and let us know how your day went.

bosco

TOF · May 15th, 2009, 01:27 AM

boscobeans is correct regarding the Lee Scale. There is something you must do however to use it safely.

It relies on a level table and calibration of Zero to yield reliable results.

If your table is not level and you shift position of the scale error will be introduced. You should verify Zero each reloading session to prevent error creeping in.

Good luck

automatic slim · May 15th, 2009, 02:36 AM

A word about crimping. If you want a good uniform crimp, you should trim your brass. New and once fired brass can be way out of spec. If the case mouth is uneven crimping will be erratic. Lee makes an excellent case trimmer/gauge that is so idiot proof that even I turn out great reloads.

May 10th, 2009, 11:43 PM	#12
heylin Member Join Date: Oct 2008 Location: New Zealand Posts: 371	Not sure if I mentioned but the ammo I refer to as Factory is actually reloaded ammo already, a local gunshops gets once fired winchester brass from police academy and reloads using Lapua 115gr FMJ projectiles. I have shot about 2000 rounds of it through 3 of my guns with no problems, so my aim is to replicate that reloaded round by using a) the same brass b) the same projectile So all things being equal if I obtain the same powder brand and confirm the powder charge weight with the reloader then by aiming for identical OAL I should have the same ammo that I know works safe and well ? Will be dragging the calipers out again tonight. __________________ ------------------------------------------------ War is not about dying for your country, but making your enemy die for his. ------------------------------------------------

May 12th, 2009, 12:05 PM	#13
Ghuqu2 Member Join Date: Apr 2007 Location: Missouri Posts: 289	Contacted Hodgdon about AP70N and it is Universal Clays. I hadn't noticed your location until the guy at Hodgdon freaked and wanted to know where you got it. But all load data for Universal Clays can be used. Lee manual:115gr fmj - use same For 115gr GDHP (Hodgdon manual) start : 4.5gr max: 5gr oal: 1.125 Hodgdon manual: 115gr LRN start: 4gr max: 5gr oal: 1.100 __________________ "The millions of people, armed in the holy cause of liberty, and in such a country as that which we possess, are invincible by any force which our enemy can send against us." Patrick Henry 1775 Vegetarian: Indian for inept hunter.

May 12th, 2009, 11:41 PM	#14
heylin Member Join Date: Oct 2008 Location: New Zealand Posts: 371	My test round came out at 1.14 OAL, ive also loaded at 4.3-4.4gr starting. Does this all sound OK ? My Lee Perfect powder is quite consistant did 5 lots of 10 test loads and all averaged at 4.3 - 4.4 gr My 10 test rounds I loaded at 4.3gr weighed individually. __________________ ------------------------------------------------ War is not about dying for your country, but making your enemy die for his. ------------------------------------------------

May 15th, 2009, 01:27 AM	#19
TOF Member Join Date: Mar 2008 Location: Arizona Posts: 226	boscobeans is correct regarding the Lee Scale. There is something you must do however to use it safely. It relies on a level table and calibration of Zero to yield reliable results. If your table is not level and you shift position of the scale error will be introduced. You should verify Zero each reloading session to prevent error creeping in. Good luck __________________ "Those who hammer their guns into plows will plow for those who do not." - Thomas Jefferson

May 15th, 2009, 02:36 AM	#20
automatic slim Distinguished Member Join Date: Jul 2008 Location: The western edge of The Confederacy Posts: 1,223	A word about crimping. If you want a good uniform crimp, you should trim your brass. New and once fired brass can be way out of spec. If the case mouth is uneven crimping will be erratic. Lee makes an excellent case trimmer/gauge that is so idiot proof that even I turn out great reloads. __________________ "First gallant South Carolina nobly made the stand." Edge of Darkness

May 10th, 2009, 11:33 PM	#11
boscobeans Senior Member Join Date: Jul 2008 Location: upstate new york Posts: 723	As stated by TOF """Don't assume or even accept someone elses statement that X and Y powder are equal. Find a load chart for the specific powder you are using or I reccomend you not use it.""" It is too easy to mess up when trying to equate powders. Example.. Clays is not Universal Clays... Go with what a reloading handbook or powder manufacturer (geared to the powders in your part of the world) says. bosco

May 13th, 2009, 01:43 AM	#15
boscobeans Senior Member Join Date: Jul 2008 Location: upstate new york Posts: 723	Sounds good to me.. Let us know how your test rounds work out. bosco

May 15th, 2009, 12:45 AM	#18
boscobeans Senior Member Join Date: Jul 2008 Location: upstate new york Posts: 723	That little Lee scale that came in your kit is plenty accurate.. Have a blast and let us know how your day went. bosco

Thread Tools
Show Printable Version Email this Page
Display Modes
Linear Mode Switch to Hybrid Mode Switch to Threaded Mode