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Discussion Starter · #1 ·
Anyone have data for a 215 grain cast SWC? I find oodles of data for 210 grain and 225 grain bullets but nothing for the 215 grain (bevel base, plain base). Thanks! I'm going to try some Trail Boss, 6 grains up to 7 grains for a starter.

Tom
 

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Discussion Starter · #3 ·

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Discussion Starter · #5 ·
I found data in Lyman's 47 edition and Lee's reloading book.
No data in the Lyman 49th edition. I wish I still had my 47th edition......Looks like I'll have to invest in the Lee book. Thanks!
 

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Discussion Starter · #7 ·
I'm going to retest the 215 grain SWC's today with charges of Trail Boss, 6.0 to 7.0 grains. My last range session ended in disaster with the SWC's going every where but the target. Even at 25 yards two shots grouped 12" and key holed! The bullets are sized .432". They are plain bevel based but I don't know the lead hardness.

I was pushing them with Unique, 11.0 to 11.9 grains, putting velocities in the 1450 fps up to 1550 fps range. I'm assuming at this point that I was pushing them too fast. The bullets were purchased from Moyer Cast Bullets in PA.
 

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.

What is the groove diameter of your barrel? Next question, has it a Micro-Groove barrel? Micro-Groove will shoot cast well but are often a couple a thousandths larger than cut rifle barrels. Makes a big difference.
 

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Discussion Starter · #9 ·
.

What is the groove diameter of your barrel? Next question, has it a Micro-Groove barrel? Micro-Groove will shoot cast well but are often a couple a thousandths larger than cut rifle barrels. Makes a big difference.
I slugged the barrel right after I got it hence the use of .432" diameter bullets. I'll be posting yesterdays range results in a little while. That session went MUCH better using 44 special load data with the cast 215 gr SWC and the Speer 200 grain HP specifically made for the 44 Special.
 

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Discussion Starter · #10 ·
As promised, here's the results of my range trip yesterday. Tested was the Moyer 215 grain SWC, plain bevel base, sized .432". Next was the Speer 200 gr HP which I was told, by a Speer rep, is designed for the lower velocities of the 44 Special. Last tested was the Speer 240 grain Deep Curl HP.

The 215 gr Cast SWC was pushed by Trail Boss powder, 6.1, 6.3, 6.6, and 7 grains. Bullet seated to 1.600" OAL. All loads in new Starline brass. Trail Boss and 700-X loads were lit by a Win LP primer, CCI 350 mag primers for the Win 296 loads.

215 gr cast SWC: Trail Boss Powder

6.1 gr, MV-965 fps, SD-4 and ES-9, rifle sighted in with this load.
6.3 gr, MV-993 fps, SD-11 and ES-21, 25 yard group (3 shots) was 2.489".
6.6gr, MV-1013fps, SD-4 and ES-8, grouped into 2.229".
7.0gr, MV-1041fps, SD-11 and ES-22, grouped into 1.351".

200 gr Speer HP: 700-X Powder, LOA- 1.619"

5.6 gr, MV-987fps, SD-16 and ES-32, 50 yard group was .686".
5.8gr, MV-1014fps, SD-5.5 and ESX-11, grouped .783".
6.0gr, MV-1047fps, SD-22 and ES-43, grouped 1.226".
6.2gr, MV-1048fps, SD-24 and ES-47, grouped .596".

Last but not least was a Speer 240gr HP: Win 296 Powder, LOA- 1.612"

Best load was 23.1 grains of 296 yielding 1729fps with an SD of 12 and ES of 25 grouping 1.959" at 100 yards. 22.5, 22.7 and 22.9 grains were used to re-sight the rifle lower from the zero used for the 44 special loads. Elevation had to be lowered approximately 15" to strike at POA.
 
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You didn't say what your barrel slugged at. I'm going to assume .429-.430 since it's shooting the jacketed well.
Trail Boss is intended for SASS shooting - very low velocity. The low velocity explains why you had to adjust elevation lower - that TB was lobbing them like lil lead mortar shells.
It also explains why you got better groups this time around with cast (my pet theory that MG barrels shoot cast better below 1,500 fps).
I usually shoot heavier cast but I do have a 180 gr RNFP from Dardas (a sponsor here) sized .432 that shoots dang good at high velocities. Dunno what to think except it's a particularly good boolit.
I use 'em with H110 and 2400 and those things fly low around 1,700 fps and hit true. So it can be done...
My heavier boolits I cast are sized .432-.433 and work best at 1,500 fps or lower.
If you load them all to go the same velocity then your POI will stay approximately the same.
 

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Discussion Starter · #12 ·
My barrel slugged right at .430". I tried loading the 215 grain SWC's to velocities in the 1500 fps range but they didn't even hit the target frame much less the target! At 25 yards, the "group" was 12 inches and the bullets key holed. I ran into the same problem with the 200 grain Speer HP's at approximately 1400 fps. After calling Speer, I was advised to keep velocities close to 1000 fps with that bullet as it was designed specifically for 44 Special handgun loads. Trying to find 44 Special brass right now is about as easy as finding uranium in Georgia...........
 

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Discussion Starter · #13 ·
Lo and behold! Snagged some Starline 44 Spl brass off of Gunbroker!
 

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Discussion Starter · #15 ·
Oh No, here comes trouble.:ahhhhh:
Not really, I'll be using the same load data I used in the 44 mag cases. :biggrin:
 
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I have found that Marlin 44's seen to like heavy bullets.
My SASS(cowboy action)load is 240 rnfp and 6.5 of Unique.
Both my micro groove bbl and Ballard rifled bbl like this load very well.
This is loaded in mag brass with std LP primer and a firm roll crimp.
LG
 

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Discussion Starter · #17 ·
I have found that Marlin 44's seen to like heavy bullets.
My SASS(cowboy action)load is 240 rnfp and 6.5 of Unique.
Both my micro groove bbl and Ballard rifled bbl like this load very well.
This is loaded in mag brass with std LP primer and a firm roll crimp.
LG
What diameter are you shooting? I tried a cast 240 grain RNFP (.430") and they key holed out of my rifle. For cast bullets I need at least .432" diameter.
 
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