45 ACP 230gr TMJ (Cam-Pro), need load data.

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subneural

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Until now I have been reloading 200gr lead SWCs with good results. My load data is:

4.7 gr Titegroup
200 gr LSWC's
1.245" O.A.L.
0.471" taper crimp

Today I picked up Cam-Pro 230gr TMJs, which my calipers show having 0.451" dia. My reloading manual (Lyman 49th Ed) does not have any load data for Titegroup for this round.

I would appreciate you letting me know what works for you, so that I can work up a load using your data along with whats available online at Hodgsons and handloads.com. It looks like I should be in the 4.4 - 4.8gr of Titegroup range, and somewhere around 1.200" O.A.L. I'm surprised that these TMJ RN's are shorter than the lead SWCs (0.585" long vs 0.645"). Shows what I know.

Thanks in advance!
 
subneural said:
Until now I have been reloading 200gr lead SWCs with good results. My load data is:

4.7 gr Titegroup
200 gr LSWC's
1.245" O.A.L.
0.471" taper crimp

Today I picked up Cam-Pro 230gr TMJs, which my calipers show having 0.451" dia. My reloading manual (Lyman 49th Ed) does not have any load data for Titegroup for this round.

I would appreciate you letting me know what works for you, so that I can work up a load using your data along with whats available online at Hodgsons and handloads.com. It looks like I should be in the 4.4 - 4.8gr of Titegroup range, and somewhere around 1.200" O.A.L. I'm surprised that these TMJ RN's are shorter than the lead SWCs (0.585" long vs 0.645"). Shows what I know.

Thanks in advance!
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With Campro's 230GR I use 4.8GR of Titegroup @1,255" giving 770FPS
 
They are plated.. FMJ doesn't mean it is jacketed.. just that the bullet is covered (base exposed).. TMJ means the base is covered..
 
These are TMJ's - there is NO exposed lead anywhere on the bullet.

Thanks for the feedback, guys. I am going work up some test loads at 4.3, 4.5, and 4.7gr respectively.
 
The only Canadian made FMJ bullets, that i know of, is Canadian BDX. they use a brass jacket with a lead core.

Many people are confused by plated bullets and think they are FMJs and use FMJ data to load plated bullets instead of data for lead bullets. Fortunately the difference between lead and FMJ is not enough to blow up a gun, IN MOST CASES, however it does create some hot loads and just confirms that one needs a chronograph when reloading and one has to start low and work up a load.
 
subneural said:
These are TMJ's - there is NO exposed lead anywhere on the bullet.

Thanks for the feedback, guys. I am going work up some test loads at 4.3, 4.5, and 4.7gr respectively.
Click to expand...

Which means squat if you crimp your rounds, or don't bell enough... plating is usually so thin it cracks or peels on any distortion or the underlying lead..
 
General rule of thumb..TMJ is Total Metal Jacket, also known as plated. U will also see EMJ for plated meaning Encapsulated Metal Jacket. TMJ is a trademarked name by Speer but it seems many other manufacturers are using it gratis. FMJ is Full Metal Jacket, meaning a lead core surrounded by a brass or copper jacket or gilding metal. A non plated but fully covered jacket with no lead exposed is a CMJ or Complete Metal Jacket. Merely a FMJ with the addition of a copper disc on the base so as to cover the exposed lead base.
Hope that helps
dB
 
The new flat nose Cam Pro 230 grains plated bullet is not working well loaded at 1.245 Many failure to feed and this in different guns that handle the 200 SWC with no problem. One gun club have loaded a bunch of those at 1.245 and found out too that this not reliable. So beware of doing testing before loading a big bunch of those at 1.245
 
Janeau said:
The new flat nose Cam Pro 230 grains plated bullet is not working well loaded at 1.245 Many failure to feed and this in different guns that handle the 200 SWC with no problem. One gun club have loaded a bunch of those at 1.245 and found out too that this not reliable. So beware of doing testing before loading a big bunch of those at 1.245
Click to expand...

Thanks for this. I realize that 1.245 works well on the 200gr L-SWC's that I have. The L-SWC's are longer than than the Campro 230gr TMJs, so it is very likely that the OAL on the Campros will be less than 1.245.

Looking at Hodgsons data online, they are suggesting an OAL of 1.200, so this is likely where I will start in terms of OAL.

Cheers.
 
I've had the very most success, with all 45acp rounds, at 1.200" Even though my Glock Magazine will allow up to 1.275 lengths, I stopped using that length after some probs with different bullets, and buying a 1911, that would not even come close to fitting that length in the magazine.
 
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