|
|
Post by bigbore5 on Feb 24, 2024 7:53:28 GMT -5
Once I get back home I will. What's the dimensions you want? Just chamber and neck? If so they are SAAMI minimum.
|
|
|
|
Post by Encore64 on Feb 24, 2024 8:00:51 GMT -5
Once I get back home I will. What's the dimensions you want? Just chamber and neck? If so they are SAAMI minimum. Please just pin gauge the chambers. Thanks... |
|
|
|
Post by bigbore5 on Feb 24, 2024 8:41:29 GMT -5
Chambers are a tight .379", throats were .357", but I had them opened to .3585" for cast.
|
|
|
|
Post by Encore64 on Feb 24, 2024 11:14:13 GMT -5
Chambers are a tight .379", throats were .357", but I had them opened to .3585" for cast. BB5, Thank You Much!!! That was the one measurement I didn't have to compare. My BFR will accept a .380" Minus Pin, so I assume .001" Larger. Interestingly enough, when I compared BFR and FA 454s, the BFR was .001" Smaller. Again, many thanks. Small details matter... |
|
|
|
Post by Encore64 on Feb 24, 2024 13:03:26 GMT -5
So, this'll be a two-fer post...
The Fermin Sight arrived today. Put it on and POI was 1/2" low. Quality is as expected, terrific.
Seating the 180s to the bottom lube groove provided great capacity. But, I'm still a cautious handloader.
I'd gotten to 16.5 grn while seating in the middle groove. So, I started with 17.0 grn for 1480 fps. Then 17.5 grn for 1515 fps.
I've loaded the cases 4 times at 17.5 grn and pockets are still tight as new.
I'll try 18.0 grn and stop there. Powder won't be compressed, but I'll be out of capacity.
|
|
|
|
Post by Encore64 on Feb 24, 2024 13:16:19 GMT -5
18.0 grn 2400
CCI SRM Primer
Starline Brass
Missouri Bullets 180 grn
1.810" COAL
1552 FPS 960 FPE
I cannot ask for more from a 17 Cent 357 Magnum Case. Primer Pockets holding up well, cases free in chambers and resize easily.
Think I'll just stop here...
|
|
|
|
Post by hunter01 on Feb 24, 2024 14:12:23 GMT -5
18.0 grn 2400 CCI SRM Primer Starline Brass Missouri Bullets 180 grn 1.810" COAL 1552 FPS 960 FPE I cannot ask for more from a 17 Cent 357 Magnum Case. Primer Pockets holding up well, cases free in chambers and resize easily. Think I'll just stop here... Thats impressive. Wont gain much if anything going to the 360 or a maximum. |
|
|
|
Post by Encore64 on Feb 24, 2024 14:24:23 GMT -5
I agree. Probably, the 360 DW will be more flexible with bullet selection. It's dumb luck that the lube groove is in the right place on these.
I did not expect the brass to hold up this well. After I clean the gun, I'm going to revisit the 195s. But, the 180s will be the hammer...
|
|
|
|
Post by ss30378 on Feb 24, 2024 15:00:26 GMT -5
Your long OAL numbers are similar to mine. My long OAL 180gr MBC Pugnose whole number ladder (skipping the .5 grain increments) with my lot of 2400 from the bisley was:
Alliant 2400
6.5” reeder oversized cylinder bisley
Federal 357 magnum brass, cci400, loaded to 1.800” OAL
14gr: 1348fps/746lb/ft
15gr: 1422fps/808lb/ft
16gr: 1478fps/873lb/ft
17gr: 1536fps/943lb/ft
18gr: 1602fps/1026lb/ft (Max load for easy extraction)
19gr: 1711fps/1177lb/ft (Sticky extraction)
|
|
|
|
Post by Encore64 on Feb 24, 2024 15:06:08 GMT -5
Your long OAL numbers are similar to mine. My long OAL 180gr MBC Pugnose whole number ladder (skipping the .5 grain increments) with my lot of 2400 from the bisley was: Alliant 2400 6.5” reeder oversized cylinder bisley Federal 357 magnum brass, cci400, loaded to 1.800” OAL 14gr: 1348fps/746lb/ft 15gr: 1422fps/808lb/ft 16gr: 1478fps/873lb/ft 17gr: 1536fps/943lb/ft 18gr: 1602fps/1026lb/ft (Max load for easy extraction) 19gr: 1711fps/1177lb/ft (Sticky extraction) I sure wish you'd have posted that before I worked up loads, LOL!!! But seriously, it does like very similar. We all know there'll be slight differences between guns. Thanks for validating my data. Extremely helpful... |
|
|
|
Post by Encore64 on Feb 24, 2024 15:47:51 GMT -5
Back to the Stateline 195 grn Bullets...
Since determining cases could take more and hold up better than expected, I turned back to the 195s.
I'll spare the working up and just show where I settled.
2400 15.0 grn 1425 fps
2400 15.5 grn 1480 fps
Powder almost to the base of the bullet. So, 15.5 grn will be my maximum. Produces 948 fpe...
|
|
|
|
Post by bigbore5 on Feb 24, 2024 17:18:33 GMT -5
Chambers are a tight .379", throats were .357", but I had them opened to .3585" for cast. BB5, Thank You Much!!! That was the one measurement I didn't have to compare. My BFR will accept a .380" Minus Pin, so I assume .001" Larger. Interestingly enough, when I compared BFR and FA 454s, the BFR was .001" Smaller. Again, many thanks. Small details matter... My 353 is early. My son said his will very tightly take a .380" part of the way. His has the replaceable firing pin. Mine doesn't. Maybe they loosened it some, or maybe mine was the last cut on that reamer. Either way I have to use a tight size die, while he can use an out of the box Redding. Now I use the Lee Factory crimp. It good as long as it's a clean cylinder. I'm thinking about polishing the chamber a little, but haven't done it in the years I have had it yet. |
|
|
|
Post by Encore64 on Feb 24, 2024 17:25:27 GMT -5
I'm noticing this one has to be kept clean. But, consider it money well spent.
I still want the 360 DW Cylinder. But, the results can sure make you think about it.
I also did something questionable...
I'd mentioned some cases were starting to get slightly loose. So, I broke our some small rifle primers that fit tighter than new cases. Supposed to be the same size, but batches of everything varies.
I used the same cases three more times. That's 9 Loadings between the two different primers.
Powder capacity due to the longer cylinder makes a difference...
|
|
|
|
Post by bigbore5 on Feb 24, 2024 17:52:46 GMT -5
In my 353 loads, I used CCI magnum or srp interchangeably. According to the tech I talked to there, they are the same primer. I continued to do so with the 360 and Maximum. Velocity, so therefore pressure, remains consistent between the two.
|
|
|
|
Post by Encore64 on Feb 24, 2024 18:04:21 GMT -5
I'd considered opening the throats up on this gun. But, in the end it doesn't make sense.
The throats are .357"+, so I just size bullets to .357". The bore is .3555", do bullets still hit the forcing cone .0015" over-sized.
I'll seat all these bullets long to eliminate the possibility of going in the wrong gun. Segregation of ammo is easy, idiot proof is better.
|
|
