1911 45acp aol vs headspace

pzkw108

pzkw108

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I went out to the range to try my first batch of reloded 45acp. with my Norc 1911a1 govnt.

I had a lot of feeding issues..... and I never had any with shelf ammo.

the bullet I use is the Berry's 200g rs plated bullet. and Jay Phillips from Berry's told me they recomend an aol of 1.20"

I read a tread about headspce that was saying that if you drop a bullet in the chamber holding the barrel with the muzzle down the casehead should be flush or a little under the barrel hood. and if the casehead was over there will be some feeding problem.

here the tread http://thefiringline.com/forums/showthread.php?t=281551

so I reseated a bullet to be in accordence with this and my aol is now 1.160" , so here my question do you think a short aol like that can cause any problem.?

thanks
 
My friend's norc 1911 has a tighter chamber than my gold cup. Check COAL and crimp=about flush with hood. We took the extra step of inside outside mouth chamfer to reduce chance of bulge at bullet. Consider .451 instead of .452 bullet(measure to be sure). The lee factory crimp/carbide ctg sizer can loosen the bullet in neck. Are any of the plated bullets off-spec, ie .453? diagnose and goodluck
 
I am using blue dot and the batch I have done is 10 grains, so I will make a little batch to work up that load with the shorter aol to see if I can just seat the bullet to 1.160" on the other batch

and I don't do any kind of crimp right now.
 
No problem: just seat the bullet to fit your chamber and work up powder charge as you would normally. Taper crimp such that case mouth diameter is in the range of .468"-.471"
 
In the government model if the round is shorter than milspec 230 grain ball you will likely have feeding problems with a standard government model magazine. The magazine has to be set up to release the round being fed a bit sooner in the feeding cycle--check the shape of the feed lips on a good quality after-market mag and you can see the difference right away.
ymmv, 44Bore
 
I am not comfortable with the way you have started this project.

Blue Dot powder is a special powder used for max velocity ammo. And you have "started" with what could be a MAx load in your pistol. This is not how I would start a load for a new pistol - and I have 50+ years of experience dong it.

Keep the Blue Dot for later when you want a max velocity load, but get something better suited for target/plinking. There are many of them. My favorite is IMR7625. It meters very well and is a mid speed powder, similar to Unique. Other good powders for general purpose shooting are Tite Group, 231 and Herco.

Start your loading with published START load (that is why they call it Start) and see how it goes. Once your seating die seats the bullet to the OAL you want, screw the stem out a few turns and then sceew the die body in until you feel a bit of resistance. This will be the crimpin section of the die body hitting the case mouth. Adjust the die so that the flared mouth is push back in so there is no lip sticking out. Don't over do it becasue the case seats on the mouth.

Once the die body is adjusted, turn down the locking ring and clamp it in place so you won't ever have to adjust the 45 crimp again. Now you can turn the seater stem back down to ht the bullet. Die is now adjsuted to both seat bullets and crimp away the mouth flare.

If you want to start with Blue Dot, try 8 grains to start.
 
Ganderite said:
I am not comfortable with the way you have started this project.

Blue Dot powder is a special powder used for max velocity ammo. And you have "started" with what could be a MAx load in your pistol. This is not how I would start a load for a new pistol - and I have 50+ years of experience dong it.

Keep the Blue Dot for later when you want a max velocity load, but get something better suited for target/plinking. There are many of them. My favorite is IMR7625. It meters very well and is a mid speed powder, similar to Unique. Other good powders for general purpose shooting are Tite Group, 231 and Herco.

Start your loading with published START load (that is why they call it Start) and see how it goes. Once your seating die seats the bullet to the OAL you want, screw the stem out a few turns and then sceew the die body in until you feel a bit of resistance. This will be the crimpin section of the die body hitting the case mouth. Adjust the die so that the flared mouth is push back in so there is no lip sticking out. Don't over do it becasue the case seats on the mouth.

Once the die body is adjusted, turn down the locking ring and clamp it in place so you won't ever have to adjust the 45 crimp again. Now you can turn the seater stem back down to ht the bullet. Die is now adjsuted to both seat bullets and crimp away the mouth flare.

If you want to start with Blue Dot, try 8 grains to start.
Click to expand...

I did work up that load, I started with 9.5g up to 10.5g ( as is on Alliant website) and as I had less feeding problem with the hotter load and no sign of pressure I choose to load the next batch at 10g.

I gess I still can try to crimp my brass a little bit as I seat the bullet deeper.
 
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