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hawgslayer
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PostSubject: ...PRB Info Needed ..........   April 14th 2014, 2:43 pm

scratch 

Can anyone with PRB ballistics charts help me out with a little info  scratch I'm looking for some info on powder charges for my .58 cal from say 50 to 90 grains. Interested in knowing what's the lowest charge for hunting as well as the highest and any other info that fits in that question such as ball size, patch, lube, cap and distances.
Will appreciate any info gents.

Thanks,
Ray.............. t up

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 2:55 pm

You have the same gun as Jon. Use his load.

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 4:32 pm

Pete,
I have been shooting his load of 90 grains with a .570 ball but there's got to be a load with less powder that could be used for hunting don't you think ? The 90 grains works great but what about 65 grs or 80 grains? Is that enough to bring down deer at 70/80 yards? That's my question.........( That 5 shot group with 90 grains will do the trick but could I get away with less )?

Ray.........

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 4:39 pm

heck yeah, good shootin! I'd say 70 grains is the minimum that I would go. I intended the 58's to be used for longer 150+ yard shoot and 110gr loads but if you havent the need for it, try 70gr and see how she does out to say 75-100 yards.
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hawgslayer
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 4:40 pm

Thanks Jon........

Ray.........

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w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 5:01 pm

Oh, you should have said that Ray. Hell, I could use 70gr in my .50 for deer.

Recoil too much with 90gr?

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 5:10 pm

Pete,

I think I did buddy........

Ray...............

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w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
CVA Accura V2 SS/TH with Black Stock
w/ Redfield Revolution 4 x12 Scope.
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 5:18 pm

I thought you were looking for a more accurate load.

70gr of Olde Enysford should take care of any deer. Even a big muley.

I'm going to use a 370gr maxiball for bear. Just in case I need to take a quick shot, and hit a shoulder. For elk and deer i'll be using a PRB with probably 80-90gr, but I have a .50. If I had a .58 i'd use 70-80gr for everything.

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 5:32 pm

Sounds good. Thanks Pete.

Ray..........

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w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
CVA Accura V2 SS/TH with Black Stock
w/ Redfield Revolution 4 x12 Scope.
KEEPEM IN THE "X" RING   

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 5:47 pm

The old standard the charge matching the diameter, i.e. 45 grains for a .45, 50 grains for a .50, etc. has always worked for me. The exception has been smaller calibers (.36, .32) where I use less than caliber.
If I remember right, service charge for .58 Civil War muskets was 60 grains - and that was propelling a projectile that weighed a lot more than a round ball of the same caliber. The carnage of places like Shilo, Antietam, and Gettysburg would seem to indicate that the charge got the job done.
I really think that most people use way more powder than is needed. In terms of terminal velocity, there is only one degree of dead.
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 6:05 pm

cheers 

Thanks RJ. Pretty good info Exclamation 

Ray........... t up

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CVA ACCURA V2 .50 cal MR w/Nitride Barrel
w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
CVA Accura V2 SS/TH with Black Stock
w/ Redfield Revolution 4 x12 Scope.
KEEPEM IN THE "X" RING   

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 6:15 pm

@Randy Johnson wrote:
The old standard the charge matching the diameter, i.e. 45 grains for a .45, 50 grains for a .50, etc. has always worked for me. The exception has been smaller calibers (.36, .32) where I use less than caliber.
If I remember right, service charge for .58 Civil War muskets was 60 grains - and that was propelling a projectile that weighed a lot more than a round ball of the same caliber. The carnage of places like Shilo, Antietam, and Gettysburg would seem to indicate that the charge got the job done.
I really think that most people use way more powder than is needed. In terms of terminal velocity, there is only one degree of dead.

Yes, but that was shooting a mini, and humans are easy to kill compared to animals.

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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 6:17 pm

not exactly, humans shoot back  Laughing 
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 7:10 pm

Muley wrote:
@Randy Johnson wrote:
The old standard the charge matching the diameter, i.e. 45 grains for a .45, 50 grains for a .50, etc. has always worked for me. The exception has been smaller calibers (.36, .32) where I use less than caliber.
If I remember right, service charge for .58 Civil War muskets was 60 grains - and that was propelling a projectile that weighed a lot more than a round ball of the same caliber. The carnage of places like Shilo, Antietam, and Gettysburg would seem to indicate that the charge got the job done.
I really think that most people use way more powder than is needed. In terms of terminal velocity, there is only one degree of dead.

Yes, but that was shooting a mini, and humans are easy to kill compared to animals.

That they were shooting Minnies was the point I was trying to make. Heavier projectile + smaller powder charge = lower velocity. A human might be easier to drop than a bear, but with proper shot placement, a whitetail deer will drop just as dead with the service load I mentioned as it will with a round ball propelled by an excessive charge loaded in an attempt to make a muzzleloader into an 06.
If you read Ned Roberts and Walter Cline, I don't think you will find any references to the heavy charges a lot of folks are taking as standard these days. At least not in hunting loads. In accordance to Newton, I just never enjoyed being on the receiving end of the "equal and opposite reaction.
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PostSubject: Re: ...PRB Info Needed ..........   April 14th 2014, 8:23 pm

Nobody hates recoil more than me Randy. I always seem to use less powder than everybody else.

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 8:17 am

This site has a download-able RB ballistics calculator.  You need to know the velocity, bullet weight and height above sea level.  Get yourself a chronograph to determine velocity.   I have used it and it will get you in the ballpark (on paper) of trajectory and different ranges.  The only way to REALLY know is to shoot your gun from a very stable rest and see where it hits. 

http://www.ctmuzzleloaders.com/ctml_experiments/rbballistics/rbballistics.html

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 8:46 am

I did the calculations for a .54 cal. 236gr. ball at 1400fps (default settings) and it shows a optimal (IMNSHO) zero range of 75 yards.  Mid range trajectory at 40-50 yards of +1.7" and a maximum point blank range of 98 yards -3.8".  I am using the arguable vital zone of white tail at 8" diameter area for point blank estimation. It also gives energy calculation which is really dismal compared to a thutty-ot-sux.  So, with all that a fella really needs to get out to the range and see where it hits and shoot a deer to see how it performs.  Looking at these given calculations I do not understand how anyone in their right mind would shoot at a grizz or a cape buffalo or any thick hided angry critter with one of these, but they did and some people were successful and survived the encounter, and some were not and did not.

Ask Hatchet Jack how it went for him.

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 9:39 am

Very Happy 

Thanks Archie otto for the info and taking the time to help me out. Next step is checking the velocity and then I should get the best results.

Hatchet Jack could of made it if he had a .58 cal.......... scratch 

Thanks again,
Ray........... t up

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w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 9:44 am

What is your maximum hunting range Ray?

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 9:49 am

Pete,
I'm pretty sure my max range will be 75/80 yards. I haven't shot that far yet at the range but I'm hoping my eyes will allow me that much.

Ray...........

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CVA ACCURA V2 .50 cal MR w/Nitride Barrel
w/Leupold VXR Red Dot 4x12 Scope
CVA Accura V2  .50 cal MR (older model)
w/ Redfield Revolution 4x12 Scope
CVA Accura V2 SS/TH with Black Stock
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KEEPEM IN THE "X" RING   

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 9:54 am

If PRB's are used within their range limitations there is not much to beat them.
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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 9:56 am

For that range 70gr should have enough energy for whitetails. I'd go sight it in so you know where it's hitting at max range, and call it good.

Make sure you do lots of practice at hunting positions. Don't just shoot from a bench. Once my gun is sighted in I never use a bench again.

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PostSubject: Re: ...PRB Info Needed ..........   April 15th 2014, 11:07 am

Thanks Pete. I will try 70 next time out and go from there.

Ray..........

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