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ADI reloading Data .303 Brit

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    Posted: July 18 2008 at 9:41am
Bullet Weight
(Grains)
Powder Type Barrel Length Starting Loads Maximum Loads
Powder Weight
(grains)
Velocity
(fps)
Pressure Powder Weight
(grains)
Velocity
(fps)
Pressure
125 Bench Mark 2 24" 40.0 2680 44.0 2920
125 AR2206 24" 42.0 2635 46.0C 2880
125 AR2206H 24" 41.0 2791 45.0 2931
125 AR2208 24" 45.0 2766 48.0 2883
150 Bench Mark 2 24" 34.0 2450 38.0 2605
150 AR2206 24" 36.0 2440 39.5 2620
150 AR2206H 24" 36.0 2447 40.0 2627
150 AR2208 24" 39.0 2458 43.0 2656
174 AR2206 24" 34.0 2245 37.5 2515
174 AR2206H 24" 34.0 2262 38.0 2446
174 AR2208 24" 38.0 2345 42.0 2509
174 AR2209 24" 43.0 2266 48.0C 2517
180 AR2206 24" 33.0 2200 37.5 2390
180 AR2206H 24" 34.0 2178 38.0 2400
180 AR2208 24" 37.0 2282 41.0 2440
180 AR2209 24" 44.0 2295 48.0C 2500
215 AR2206 24" 35.0 2080 39.0 2250
215 AR2208 24" 36.0 2130 39.5 2265
215 AR2209 24" 42.0 2045 45.0C 2185
L = Lead C = Compressed Load
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Post Options Post Options   Thanks (0) Thanks(0)   Quote OzBloke Quote  Post ReplyReply Direct Link To This Post Posted: January 07 2009 at 5:46pm
dave, thanks for that (from the Thales/ADI site?).

Our North American friends may not have easy access to Thales/ADI/Mulwex powders. But for those who do;

From the AHN site, robz and RugerUser supplied some good info;

"..Best results are with 41 gn of 2208 with 150gn projectile. Just about all the guys at my mil rifle club shoot that load..."

"..Standard projectile weight was 174gn and if you want to duplicate this then try 46 gn or so of 2209 behind a 174 gn projectile. you will need to use Remington cases for this load as it is the only case with enough capacity. Very mild pressure and very accurate..."
[robz]

Do you guys have much problem with case stretching due to generous chamber sizes? If so, how do you address the problem?
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Post Options Post Options   Thanks (0) Thanks(0)   Quote airforcediver Quote  Post ReplyReply Direct Link To This Post Posted: January 07 2009 at 6:34pm
Thanks for the Load data Dave
If all else fails call in a MOAB and call it a day
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Guests Quote  Post ReplyReply Direct Link To This Post Posted: January 09 2009 at 11:48pm
Do you guys have much problem with case stretching due to generous chamber sizes? If so, how do you address the problem?

     The easiest way is to just neck size your brass for each particular rifle ,the other way is to re barrel with a aftermarket barrel

     Yeah that table is straight from the ADI site & for our over seas members

AR2206H = H4895
AR2208 = Varget
AR2209 = H4350
AR2213SC = H4831
AR2217 =H1000
AR2219 =H322
AR2225 =Retumbo
AR2205 = H 4227

              Dave
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Post Options Post Options   Thanks (0) Thanks(0)   Quote John Coleman Quote  Post ReplyReply Direct Link To This Post Posted: January 12 2009 at 12:56pm
Case stretch is caused by a few things n 303. The biggest one is the military chambers are made to be oversized to the shoulder due to ammo supplies in the first world war. The chamber shoulder shape doesn''t even match the cartridge shoulder shape. The full length sizing dies are to the original shape of the cartridge. The brass can't take much of that much resizing. The other main cause in the Enfield is the rear locking bolt allows a lot of bolt movement and the case with swell just in front of the rim. I've neck sized to save the shoulder but after a few reloads the area in front of the rim swells so much to make chambering difficult. Now some people go to full length sizing at this point but this point tells me the case is stretching thin and it's a good time to retire it from full power loads, which is what I mostly load. Other cartridges I use until the necks split.

I find RL-15 about the slowest powder that works well for me when duplicating military 174 grain bullet loads. A note about slow powders and case stretch. Now H-4350 may not be slow enough to cause this problem in 303 but when loading 300 H&H Magnum too slow powders will cause the mild taper in the shoulder to stretch and cause sticky bolt without being overpressure. To avoid this I use nothing slower than IMR-4350 in 300 H&H. The 4831 powders are borderline slow at causing this problem so I just don't use that slow of a powder in 300 H&H.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote airforcediver Quote  Post ReplyReply Direct Link To This Post Posted: January 14 2009 at 7:50am
So on average how many full loads do you get outta your brass when you just neck size John?
If all else fails call in a MOAB and call it a day
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Post Options Post Options   Thanks (0) Thanks(0)   Quote John Coleman Quote  Post ReplyReply Direct Link To This Post Posted: January 14 2009 at 8:28am
Well in one of my more accurate rifles I only get three or maybe four if I'm lucky and don't mind forcing the cartridges in the chamber on the forth. Then I could use a full length die on some if the necks don't split. What happens is the cases expand just in front of the rim and make chambering difficult.With the cases stretched I really don't want to push their limits though.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote airforcediver Quote  Post ReplyReply Direct Link To This Post Posted: January 14 2009 at 1:19pm
Thats not bad with full loads,  I have ordered my full length dies and was about to order a collet die.
 
As I don't intend to do full loads regularly if ever, I'm not sure which Ill we be doing more often but I guess it going to depend on the amount of case stretching I get. 
 
My No1 MkIII* doesn't appear to be stretching my cases upon visual comparison with brand new brass.  But I will mirco the differences to be sure.
 
I do have about 15lbs of brass, so if it takes me a while to figure out which method works best for my loads, its not a big deal. 
If all else fails call in a MOAB and call it a day
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Post Options Post Options   Thanks (0) Thanks(0)   Quote OzBloke Quote  Post ReplyReply Direct Link To This Post Posted: January 14 2009 at 5:49pm
Someone over at AHN started a thread on 'Lee Collet Dies'. 'Course some wag than asked who 'Lee Collet' was :-)

Does anyone know if the Lee 'RGB' dies are full length or only neck sizing dies.

I'm looking at getting some dies for the smelly. I have an RCBS press, and a workmate some time ago who was getting out of shooting gave me his Lee press + 'stuff' (he was into .30/30).

If the Lee RGB dies ARE neck sizing dies only, that looks the way to go. Or do I need specifically, 'Collet' dies.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Hatchetman Quote  Post ReplyReply Direct Link To This Post Posted: January 14 2009 at 6:45pm
The RGB dies are is a full length sizing die and a seating die.

You can get the delux set which has the shell holder, full length die, collet die and deating die in it though, thats pretty good. 
But the winters coming,

And the snow will cover tracks,

And I'll be watching,

Because I'm hunting you



- Sarah Blasko, The Gardens End
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Post Options Post Options   Thanks (0) Thanks(0)   Quote John Coleman Quote  Post ReplyReply Direct Link To This Post Posted: January 15 2009 at 12:43am
The Lee deluxe set is the best deal and is the same price as standard die sets from other companies. The dies will interchange with presses of different makes. You can use Lee dies in an RCBS press. Trying to full length resize 303 cases will destroy a lot of cases due to the cartridge shape and chamber shape mismatch. Neck sizing with a collet die is about the best way to get any case life. Stay away from S&B cases. 
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Post Options Post Options   Thanks (0) Thanks(0)   Quote Lost Kangaroo Quote  Post ReplyReply Direct Link To This Post Posted: January 15 2009 at 2:32am
Second vote for the lee deluxe, serves me well and the price was right.
Get some
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Post Options Post Options   Thanks (0) Thanks(0)   Quote airforcediver Quote  Post ReplyReply Direct Link To This Post Posted: January 15 2009 at 3:55am
Always good, to get a heads up from the guys that have gone through this before you start
 
thanks guys
If all else fails call in a MOAB and call it a day
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Post Options Post Options   Thanks (0) Thanks(0)   Quote OzBloke Quote  Post ReplyReply Direct Link To This Post Posted: January 15 2009 at 2:48pm
I 2nd afd, Thanks All.

Can't really tell from the info on the (Lee) website.
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Post Options Post Options   Thanks (0) Thanks(0)   Quote OzBloke Quote  Post ReplyReply Direct Link To This Post Posted: February 07 2009 at 6:25pm
As an interim solution, since it is a neck sizing setup, without the hassle of setting up the collet dies, I'v gotten myself a Lee Loader in .303.

That'll do for initial load development (got scales etc).
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Post Options Post Options   Thanks (0) Thanks(0)   Quote John Coleman Quote  Post ReplyReply Direct Link To This Post Posted: February 08 2009 at 2:43am
The Lee Loader can work. I used a few of them years ago but not in 303. They can get a bit noisy with all the banging. A steel hammer is not required nor recommended. A hard plastic or a brass hammer is better. For the primers a hand primer tool works a bit better than the Lee Loader method. You may still need a case trimmer. The cheap Lee hand held one with the cheap Lee case gauge works well. I even bought a full set of Lee dippers and got good at using them. A scale is still best to have.

You can neck size with a full length sizing die. You just need to set it up to not bump the shoulder. The lee collet die just makes it a bit easier.

With the lee Loader check bullets for tightness/looseness. If they aren't tight it's usually means trimming is required but can be the brand of brass in the Lee loader.
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