348 Winchester, 180 grain bullets

I recently picked up a 1941 Model 71 Deluxe that came with 2 boxes of Hornady 200 grain jfp.
Load development is putting a hurt on the first box. I ordered a Lee sizing die to convert Speer 180 grain .358 bullets.
But load data is minimal.
Can anyone help me out?

You are going to have a tough time. Looking at load books back to 68 and that caliber had very limited data. The only powder listed still in production for that weight is 44.5 grains max BLc-2. For all 3 weights the powders were H450, 4831 and BLc-2.

Good luck.

Hawk makes 6 different flat nose bullets for the 348 Win.

https://hawkbullets.com/index.html

Code

  Cartridge          : .348 Win.
Bullet             : .348, 180, Hawk FP
Useable Case Capaci: 67.958 grain H2O = 4.412 cm³
Cartridge O.A.L. L6: 2.795 inch = 70.99 mm
Barrel Length      : 26.0 inch = 660.4 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 40610 psi, or 280 MPa
or a maximum loading ratio or filling of 100 %
These calculations refer to your specified settings in QuickLOAD 'Cartridge Dimensions' window.
C A U T I O N : any load listed can result in a powder charge that falls below minimum suggested
loads or exceeds maximum suggested loads as presented in current handloading manuals. Understand
that all of the listed powders can be unsuitable for the given combination of cartridge, bullet
and gun. Actual load order can vary, depending upon lot-to-lot powder and component variations.
USE ONLY FOR COMPARISON !

143 loads produced a Loading Ratio below user-defined minimum of 80%. These powders have been skipped.
Powder type          Filling/Loading Ratio  Charge    Charge   Vel. Prop.Burnt P max  P muzz  B_Time
                                      %     Grains    Gramm   fps     %       psi     psi    ms
---------------------------------  -----------------------------------------------------------------
ReloadSwiss RS 60 *T                98.5     64.7     4.19    2854    96.3    40611    7930   1.275  ! Near Maximum !
Alliant Reloder-17 *T               97.8     64.2     4.16    2844    95.3    40611    7760   1.277  ! Near Maximum !
Elcho 17                            97.8     64.2     4.16    2844    95.3    40611    7760   1.277  ! Near Maximum !
ReloadSwiss RS 52                   93.2     60.3     3.91    2821    97.3    40611    7277   1.288  ! Near Maximum !
Vihtavuori N550 *C*T                99.4     63.6     4.12    2806    93.0    40611    7445   1.294  ! Near Maximum !
IMR 3031                            91.7     53.7     3.48    2804    99.8    40611    6733   1.293  ! Near Maximum !
Alliant Reloder TS 15.5 *C *T       97.0     58.2     3.77    2796    97.8    40611    7024   1.297  ! Near Maximum !
Bofors RP 712 *C*T ~approximation   97.0     58.2     3.77    2796    97.8    40611    7024   1.297  ! Near Maximum !
Hodgdon CFE223 *C                   92.1     62.9     4.08    2793    93.3    40611    7288   1.288  ! Near Maximum !
SNPE Vectan SP 11                   94.9     61.4     3.98    2793    94.9    40611    7204   1.290  ! Near Maximum !
PB Clermont PCL 511                 99.2     66.2     4.29    2787    90.1    40611    7412   1.289  ! Near Maximum !
Ramshot Big Game                    91.9     61.3     3.97    2786    94.8    40611    7127   1.291  ! Near Maximum !
Winchester 748                      84.5     57.0     3.69    2785    97.6    40611    6918   1.293  ! Near Maximum !
Hodgdon LVR                         99.2     62.1     4.03    2784    92.1    40611    7229   1.289  ! Near Maximum !
Norma 203 old                       94.8     60.0     3.89    2784    96.4    40611    7131   1.314  ! Near Maximum !
Bofors RP3                          94.8     60.0     3.89    2784    96.4    40611    7131   1.314  ! Near Maximum !
Hodgdon H414                        96.8     64.2     4.16    2783    89.0    40611    7328   1.290  ! Near Maximum !
Winchester 760                      96.8     64.2     4.16    2783    89.0    40611    7328   1.290  ! Near Maximum !
Hodgdon BL-C2                       87.1     59.6     3.86    2782    96.6    40611    7090   1.305  ! Near Maximum !
Accurate 4064                       94.6     57.9     3.75    2781    99.2    40611    6920   1.340  ! Near Maximum !
Alliant AR-Comp *C *T               87.3     52.9     3.43    2781   100.0    40611    6188   1.294  ! Near Maximum !
Bofors RP11 TZ *C *T approximation  86.8     52.9     3.43    2780   100.0    40611    6189   1.294  ! Near Maximum !
IMR 4895                            90.8     56.9     3.69    2780    95.3    40611    7121   1.306  ! Near Maximum !
Accurate 2495                       89.0     54.6     3.53    2777   100.0    40611    6683   1.346  ! Near Maximum !
Rottweil R903                       96.9     60.0     3.89    2774    96.1    40611    7047   1.315  ! Near Maximum !
Shooters World Match Rifle          89.5     57.7     3.74    2770    98.4    40611    6826   1.317  ! Near Maximum !
Lovex D073.6                        89.5     57.7     3.74    2770    98.4    40611    6826   1.317  ! Near Maximum !
Accurate 2520                       87.4     57.7     3.74    2770    98.4    40611    6826   1.317  ! Near Maximum !
Norma 203B *C                       92.1     57.7     3.74    2769    95.2    40611    7039   1.308  ! Near Maximum !
Bofors RP11 ~approximation          91.5     57.3     3.71    2764    94.5    40611    7021   1.308  ! Near Maximum !
Raufoss RA11                        91.5     57.3     3.71    2764    94.5    40611    7021   1.308  ! Near Maximum !
Alliant Reloder-15 *C               91.5     57.3     3.71    2764    94.5    40611    7021   1.308  ! Near Maximum !
ReloadSwiss RS 70 *C               100.0     66.7     4.32    2760    89.7    39059    7578   1.307
Somchem S355                        95.9     58.8     3.81    2757    95.8    40611    6946   1.315  ! Near Maximum !
Vihtavuori N160 *C                  99.0     63.3     4.10    2757    92.9    40611    6953   1.293  ! Near Maximum !
Bofors RL16 TZ *C *T               100.0     61.0     3.95    2752    92.0    38400    7313   1.314
Alliant Reloder-16 *C *T           100.0     61.0     3.95    2752    92.0    38400    7313   1.314
Hodgdon H4895                       87.7     54.9     3.56    2752    95.9    40611    6869   1.311  ! Near Maximum !
Ramshot Wild Boar                   86.6     58.0     3.76    2751    95.0    40611    6878   1.303  ! Near Maximum !
IMR 4320                            93.2     57.4     3.72    2746    94.8    40611    6772   1.291  ! Near Maximum !
Hodgdon H380                        93.3     59.7     3.87    2746    92.6    40611    6986   1.314  ! Near Maximum !
Vihtavuori N540 *C                  91.0     57.6     3.73    2744    98.7    40611    6684   1.310  ! Near Maximum !
ADI AR 2206H                        87.9     55.1     3.57    2743    95.2    40611    6838   1.312  ! Near Maximum !
Vihtavuori N135 *C                  97.4     55.3     3.58    2742    99.9    40611    6300   1.312  ! Near Maximum !
Norma 202 *C                        88.6     54.6     3.54    2742    98.8    40611    6580   1.313  ! Near Maximum !
ReloadSwiss RS 62                  100.0     65.6     4.25    2742    91.0    37047    7398   1.342
Somchem S321                        83.9     56.6     3.67    2740    97.0    40611    6767   1.315  ! Near Maximum !
PB Clermont PCL 507 *C              85.3     55.7     3.61    2739    96.7    40611    6713   1.307  ! Near Maximum !
Hodgdon H322                        84.2     51.2     3.32    2739    99.4    40611    6392   1.301  ! Near Maximum !
SNPE Vectan SP 9                    88.7     57.4     3.72    2738    95.1    40611    6790   1.306  ! Near Maximum !
Shooters World Precision            92.3     56.2     3.64    2736    96.8    40611    6711   1.321  ! Near Maximum !
Lovex S062                          92.3     56.2     3.64    2736    96.8    40611    6711   1.321  ! Near Maximum !
PB Clermont PCL 516                 89.3     59.6     3.86    2732    92.5    40611    6839   1.305  ! Near Maximum !
Norma URP *C                       100.0     62.0     4.02    2732    91.8    37655    7181   1.333
Bofors RP19 ~approximation         100.0     62.0     4.02    2731    91.8    37620    7176   1.333
Vihtavuori N530 *C                  84.4     53.2     3.45    2730    96.8    40611    6632   1.309  ! Near Maximum !
Somchem S341                        87.7     59.1     3.83    2729    95.0    40611    6660   1.304  ! Near Maximum !
Elcho TR140 - preliminary data      92.4     59.8     3.87    2727    92.7    40611    6785   1.310  ! Near Maximum !
Vihtavuori N140 *C                  90.6     55.7     3.61    2721    99.1    40611    6351   1.310  ! Near Maximum !
Norma 201 *C                        89.1     54.6     3.54    2720    96.7    40611    6642   1.330  ! Near Maximum !
Lovex D073.5                        83.1     55.8     3.62    2720    97.6    40611    6543   1.334  ! Near Maximum !
Accurate 2460                       82.8     55.8     3.62    2720    97.6    40611    6543   1.334  ! Near Maximum !
IMR 8208 XBR                        86.0     53.9     3.49    2718    96.6    40611    6532   1.310  ! Near Maximum !
ReloadSwiss RS 40                   82.2     52.5     3.40    2718    98.0    40611    6453   1.311  ! Near Maximum !
ADI AR 2208                         92.8     56.4     3.66    2717    94.1    40611    6652   1.303  ! Near Maximum !
Hodgdon VARGET *T                   93.1     56.4     3.66    2717    94.1    40611    6652   1.303  ! Near Maximum !

A quick look... Imteresting. Even an LVR load.

Hodgdon 2017 and Hornady app both have loads for it. Dirtyharry might still have these Barnes: https://www.24hourcampfire.com/ubbthreads/ubbthreads.php/topics/17673386/barnes-348-bullets

Looks like Varget and H4350 are good for both the 200 & 250. There’s also some FTX 200s out there floating around. I have a box of old Winchester 348 loaded rounds that I’d pull apart and sell you the brass, bullets and box if you want them.

The only reason I am looking at the 180 grain is due to the Hornady 200 being discontinued. And I have a bunch of Speer 180 grain .358 bullets as well as a 35 cal mould. If not, Hawk makes a nice 200 JFP

Also look up Fury Bullets in MI. They make a good bonded 220 gr bullet that
has a a good weight for the Model 71 in 348 WCF.
Hornady has stopped manuf. of their 200 gr FP 348 bullet. Look around the sites and
advertise as WTB. They are out there.

I cannot recommend swaging 358 bullets down for the M 71.

Start with known 200 grain loads and work up.

I hope you have better luck sizing 358 bullets down than I had. I almost ruined a good sizing die and that was after I nearly broke my arm leaning on the press handle. Some people have better luck with different lubes. I tried Imperial sizing lube with no luck. I would cast 200gr lead bullets and not mess with the .358 bullets.

Here's a box of 100 for sale: https://www.gunbroker.com/item/952555990
edit, here's another: https://www.gunbroker.com/item/950387229

Damn, if you have a widows machine and want to use predictive software go get Gordon’s reloading Tool, it’s free and functions just fine.

I can't get that SOB to run...

What’s the issue?

If you are having a problem, state what’s happening. I just got done extracting to a USB stick, opened the run file from the GRT folder. Agree to license, pick either novice or expert view or skip it. The program will open, defaults to 6.5 Creed. I now have a portable program that’s been tested on win 7, 8 and 10 by me.

Be happy to load one on a stick and send it to you.