Standard Pressure, Heavy .45 Colt Question

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That entire article is about what can be done with extra strong Ruger actions. I have hundreds of 260-grain .45 Colt HPs at 1200 fps, and at least 200 .454 loaded rounds for my BFR: I need Colt loads close to SAA strength for my S&W.
look at the pressures of the bottom loads with heavy bullets and that should give you an idea of how high you can go with that model 25. 45 acp +p pressures should be fine in that gun and that pressure is just below the start load for most of those "ruger only" loads in the linebaugh article. h110 is the only powder in those lists that i would not reduce.

the article is a reference point for what you are trying to accomplish, not a recommendation for loading at that level.

luck,

murf
 
4227 is what I would use. It can be downloaded safely, and is slow enough to push those heavy bullets out with low pressure. I'd start at around 15 grains, which should be over 800 fps and completely safe in any Ruger or Smith N-frame. 2400 has more blast and recoil than 4227, and doesn't handle pressure as well, either. Accurate #9 would be another choice. Here is data from an older Accurate site that has 20K loads. Only the last two higher pressure loads with copper bullets would be unsafe in a model 25 S&W.

lJejyHM.jpg
 
I am going to load something tonight, maybe two of each powder selected to start, then shoot them tomorrow, load some up again tomorrow night based on those results, shoot them Sunday, rinse and repeat, I am off Monday.

If I haven't mentioned it, I have a batch of test brass for .45 Colt, and will be using those. I'll be shooting them in my well loved 25-5 with a "slow" 6" barrel.

I am now thinking 700+ will be just fine.
 
I am going to load something tonight, maybe two of each powder selected to start, then shoot them tomorrow, load some up again tomorrow night based on those results, shoot them Sunday, rinse and repeat, I am off Monday.

If I haven't mentioned it, I have a batch of test brass for .45 Colt, and will be using those. I'll be shooting them in my well loved 25-5 with a "slow" 6" barrel.

I am now thinking 700+ will be just fine.

I appreciate all the effort.


.455 Webley seemed to do a pretty good job with an even slower bullet, so stabilization is my only real concern. As long as the holes are still round at 25 paces, it's good.
 
I appreciate all the effort.
It's a pleasure.
.455 Webley
I passed up a reasonably priced S&W in .455 that had not been converted to .45 Colt at a gun show 25/30+ years ago, wish I had bought it.
As long as the holes are still round at 25 paces, it's good.
I am sure they will be, I just had to get "regular" .45 Colt velocities out of my head and start thinking heavy/slow, but it finally sunk in. :)

Will report in Monday or Tuesday with results.

Trail Boss maybe, 4227 maybe, 5744 maybe, AA #5 maybe, Silhouette, BE-86.......AA #9 maybe.......starting with two rounds each. Maybe three, depends, I forgot to tumble the dirty .45 Colt test brass, so only half of it is clean. Whoops. :)
 
Found this Taffin quote-

“For easy shooting with heavy bullets, I again go with Oregon Trail’s 300 FN over 7.0 grains of Universal or 10.0 grains of HS-6 for around 850 fps, and 8.0 grains of WW231 for around 975 fps. ”

“I now use 10.0 gr. of HS-6 and either Oregon Trail's 300 grain FP or my own hard cast NEI 325 grain Keith-style bullets. Muzzle velocity is right at a very pleasant shooting 900 fps.”
 
I had a lot more tumbled .45 Colt test brass than I thought (49), so I got started around 4:45PM, and finished just before 7:00PM. It took a few seconds to load three rounds each after I ran LOTS of powder charges through the measure getting a setting that threw a max not average charge of each powder weight.

I loaded three each with 7.4 Grs of Silhouette, 7.1 Grs of BE-86, 15.3 Grs of AA-5744, 13.5 Grs of AA # 9, and 15.0 Grs of IMR-4227.

The bullet. 320 Gr WFN-GC
John's 320 Gr LWFN-GC @ 50%.JPG

3 of the loaded rounds. (Crimp groove is very shallow)
John's 320 Gr LWFN-GC .45 Colt @ 40%.JPG
 
Those are beautiful rounds. :thumbup:

I'm curious how you'll feel the recoil impulse from these heavier bullets, though I remember you handled .454 like a champ.
 
I forgot to mention, I used the lower crimp groove, putting the rounds at 1.645 to 1.650 OAL, which fits easily in the 25-5 cylinder, with about 1/16" extra space.
 
I forgot to mention, I used the lower crimp groove, putting the rounds at 1.645 to 1.650 OAL, which fits easily in the 25-5 cylinder, with about 1/16" extra space.
I've heard some 25's have overly long chambers and I've heard rumor that a 454 casull will chamber (of course not advisable ). Seating long is a good thing and should help lower pressure. Interested to hear your results.
 
4227 is what I would use. It can be downloaded safely, and is slow enough to push those heavy bullets out with low pressure. I'd start at around 15 grains, which should be over 800 fps and completely safe in any Ruger or Smith N-frame. 2400 has more blast and recoil than 4227, and doesn't handle pressure as well, either. Accurate #9 would be another choice. Here is data from an older Accurate site that has 20K loads. Only the last two higher pressure loads with copper bullets would be unsafe in a model 25 S&W.

View attachment 918227

I can tell you from experience that 4227 is FILTHY around 23k PSI from my experience with 44mag starting loads.
 
Found this Taffin quote-

“For easy shooting with heavy bullets, I again go with Oregon Trail’s 300 FN over 7.0 grains of Universal or 10.0 grains of HS-6 for around 850 fps, and 8.0 grains of WW231 for around 975 fps. ”

“I now use 10.0 gr. of HS-6 and either Oregon Trail's 300 grain FP or my own hard cast NEI 325 grain Keith-style bullets. Muzzle velocity is right at a very pleasant shooting 900 fps.”
I went looking for context. That quote is prefaced by "I would hate to try to tally the number of full power loads, which have gone down the barrels of a Freedom Arms .454 Casulls. The sixguns came through unscathed however my wrists and hands demand lighter loads be used as Everyday Working Load..."
 
You mean this quote? “I have already mentioned the .45 Colt with the .38-40 and .44-40 and the fact my most used load with the .45 Colt these days is 8.0 gr. of Unique and Oregon Trail's 250 gr. RNFP or their 255 gr. SWC. When I do cast my own, the same charge goes under the RCBS #45-270 SWC, an excellent Keith design weighing 275-280 grains depending upon alloy used, that clocks out at 900+ fps and shoots superbly. For easy shooting with heavy bullets, I again go with Oregon Trail’s 300 FN over 7.0 grains of Universal or 10.0 grains of HS-6 for around 850 fps, and 8.0 grains of WW231 for around 975 fps. “
Maybe you read the 2nd part correctly. I thought he was explaining why he likes easy shooting loads. The FPS is different. The 2nd quote must be a different load. 10 grains of HS-6 suddenly produces 50 FPS more with the same bullet.
 
15 rounds fired, velocities from 607 (5744)to 815 (AA # 9).

Chrono at 5 yards target at 7 yards.

All 15 rounds.
20200523_145953.jpg

It's hot, and I have more work to do.
20200523_150717.jpg

BE- is worth pursuing, Silhouette needs more powder, 4227, and AA # 9 were dirty enough to cause hard extraction. Rechambered and extracted fine after blowing trash out of chambers etc.

5744 tossed powder kernels at least as far as the chrono, but extracted easily.

BE-86: 707, 701, 714.
Silhouette: 608, 612, 623
5744: 627, 616, 607
4227: 671, 666, 657
AA # 9: 785, 792, 815

20200523_150449.jpg
 
I put those slow powders in quickload and most were showing around 40-50 percent burn. That's why I didn't post screenshots.

Silhoette showed about the most complete burn while still getting decent velocity.

My version of QL does not have BE-86.

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.
 
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15 rounds fired, velocities from 607 (5744)to 815 (AA # 9).

Chrono at 5 yards target at 7 yards.

All 15 rounds.
View attachment 918576

It's hot, and I have more work to do.
View attachment 918577

BE- is worth pursuing, Silhouette needs more powder, 4227, and AA # 9 were dirty enough to cause hard extraction. Rechambered and extracted fine after blowing trash out of chambers etc.

5744 tossed powder kernels at least as far as the chrono, but extracted easily.

BE-86: 707, 701, 714.
Silhouette: 608, 612, 623
5744: 627, 616, 607
4227: 671, 666, 657
AA # 9: 785, 792, 815

View attachment 918578
Looks like they all had decent accuracy potential , be-86 is looking ok
 
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