Standard Pressure, Heavy .45 Colt Question

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If you give me the length on those 320's, the OAL of a completed cartridge, and the water capacity in grains from a piece of fire formed brass, QL will output much more accurate predictions. Oh and barrel length also.

OAL was 1.645 to 1.65. Barrel length in the destined gun is 4".

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Looks like they were all fast enough. I'm surprised that AA #9 was that fast.

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They look surprisingly accurate, too. How did recoil compare to your typical .45 Colt loads?
 
They look surprisingly accurate, too. How did recoil compare to your typical .45 Colt loads?
The BE-86 rounds were first and printed a nice triangle with holes nearly touching, not bad. Next was Silhouette and POI was lower, and they grouped larger, may tighten up if powder is increased a hair. The 5744 was tight, after that it was hard to tell. 5744 left powder kernels on the stand I put the chrono on, completely unburned. AA # 9 rounds plied in without making the group larger.

Recoil was similar to 255 Gr .45 Colt loads running faster.
 
It's been fun. I intend to load some more today if I can manage, then shoot them tomorrow. I meant to include True Blue in the test, but simply forgot about it when I was dragging out powders. May include it this next step. If I was going for Tier II level loads 5744 would be at the top of the list right now for more testing, but as it is, it's out.
 
It may well have been answered in this long thread but I am too lazy to read all the comments but...the PROBLEM with super heavy bullet low pressure loads is that your front sight may not be tall enough to compensate for the increased recoil and longer bullet-in-the-barrel time that these loads produce...Just something to check...
 
It may well have been answered in this long thread but I am too lazy to read all the comments but...the PROBLEM with super heavy bullet low pressure loads is that your front sight may not be tall enough to compensate for the increased recoil and longer bullet-in-the-barrel time that these loads produce...

Thanks.
 
had nothing better to do this morning: 100_0815.JPG

100_0817.JPG

that was off hand through the chrony, didn't do powder forward/powder back, recoil was a nice firm push.

that bullet usually goes 1275 fps over the chrony when shot from this gun: 100_0818.JPG

that 265 grain lswc round is my normal carry load and the one used to test the chrony this morning.

luck,

murf

p.s. CAUTION: The post includes loading data beyond currently published maximums for this cartridge. USE AT YOUR OWN RISK. Neither the writer, The High Road, nor the staff of THR assume any liability for any damage or injury resulting from use of this information.
 
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Very nice! If it's not keyholing at over 25 meters, it's definitely going fast enough. Nice shooting.

Love the detailed notes. :rofl:
 
Life got in the way of loading the next set of test rounds, but I will load them in the morning and shot them sometimes tomorrow. I have some chores I have to do, but should be able to fit it in.

It will be three rounds each of:

Load # 63: 7.2 Grs BE-86
Load # 64: 7.7 Grs Silhouette
Load # 65: 7.2 Grs True Blue

WLP primer again.
Same 320 Gr WFN-GC @ 1.645 to 1.650 OAL.
 
Related... sort of...

I fired some test loads with BE-86 today in my .41 Magnums... I was surprised at the velocities I was getting, not only out of the 1894... which I more or less expected... but out of the 4" Smith, without pressure indications.

I'm not surprised at AA5744. This is one of those instances where 'just because I can' doesn't mean you should. It doesn't make ballistic sense at lower level loads, but your results are interesting nonetheless.
 
7.2 Grs BE-86
710, 672, & 699

7.7 Grs Silhouette
658, 635 & 642

7.2 Grs True Blue
646, 632, & 654

After 3 plus hours of cutting grass and weedeating in the heat, I wasn't my steadiest today, had some vertical due to inconsistent grip, but had five in a wad, with two up, two down.

Yesterdays on the left today's on the right, forgot to get a pic of the target before I crumpled it up. 86 degrees & 49% RH when I shot the rounds.
20200525_142927.jpg

More work to do.

Thanks for the printouts for Silhouette and True Blue.
 
I loaded nine more this evening, to shoot Friday or Saturday. I seated them to the upper crimp groove this time to shorten OAL to 1.566 to 1.568 OAL. I stopped using my RCBS seater with the SWC seater stem because seating this deep put more pressure on the stem and was damaging the very edge of the very wide flat. I put together a Hornady seater from old parts with a flat seater stem.

7.3 grs BE-86
8.0 Grs Silhouette
7.5 Grs True Blue

This may be flirting with going a little bit over the 14K pressure limit.

BE-86 meters well, but the Silhouette meters great and the True Blue meters almost perfectly.

New seating depth.
John's 320 Gr LWFN-GC - LC .45 Colt @ 50%.JPG
 
I'm rooting for True Blue.

8.8gr True Blue under a 250gr cast is one of those loads that just seems to be great in any gun I've tried it in.

I was browsing a Murdochs in Scotts Bluff, Nebraska when I saw a bottle of powder with a picture of a SAA on it.

The back said it was great in large cases with cast bullets so I gave it a try. Glad I did.

Another plus is that it is truly a ball powder. Looks like little micro ball bearings. Throws dead on every single time.
 
does the new cartridge length plunk in your chambers? i just had a thought about large diameter bullets not fitting into smaller diameter chamber throats.

luck,

murf
 
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