Reload for 7mm 08 using IMR 4350

stevelsd · Wednesday at 12:57 AM

I have a Weatherby 7mm 08 S2 24" barrel
I am using IMR 4350
I have QL but a lil confused on the powder charge options
Even at 48 grains the Pressure is listed at only 52269 but the Filling/L.R. is at 106.3

Can a Filling/L.R. over 100% be safe?

Honestly just looking for target shooting loads with this 120 BT
Any ballpark test loads for target shooting is welcome!

Thanks
Steve

jimbires · Wednesday at 3:52 AM

yes that case fill % is safe . I like to work in the 95% - 105% case fill range , at max load .

what you are seeing is , this powder is a little slow for this combo . you are going to see a higher case fill , and a lower velocity . this powder maxes out at 50.1 grain 110.7% case fill , 60075 PSI , 3086 FPS . this shows that max pressure can be reached , but at a borderline high case fill . if I have a choice I'd rather not work with this high of a case fill . so when the case fill is lowered to a mid range load , the PSI goes down . the problem I see with low pressure loads , usually they burn dirty .

you can get quickload to give a list of powders that is made to your specs . I set up the chart for max PSI , and I'll set the case fill at 110% , just to see if something just over 105% shows up . I'd rather work at 95% - 105 %

looking at the powder chart RL17 would be a great choice . it has a max PSI load, case fill of 106.7% , and gives 3232 FPS . I know RL17 works well in the 7mm-08 , I use it . this is how I pick my powder choice .

Code:

Cartridge          : 7 mm-08 Rem.
Bullet             : .284, 120, Nosler BalTip 28120
Useable Case Capaci: 49.378 grain H2O = 3.206 cm³
Cartridge O.A.L. L6: 2.800 inch = 71.12 mm
Barrel Length      : 24.0 inch = 609.6 mm

Predicted Data for Indicated Charges of the Following Powders.
Matching Maximum Pressure: 60191 psi, or 415 MPa
or a maximum loading ratio or filling of 110 %
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 !

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               107.5     51.3     3.32    3250   100.0    60191    9823   1.024  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-17 *T              106.7     50.9     3.30    3232    99.6    60191    9730   1.028  !DANGEROUS LOAD-DO NOT USE!
Elcho 17                           106.7     50.9     3.30    3232    99.6    60191    9730   1.028  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 70 *C               109.9     53.3     3.45    3205    97.4    60191    9951   1.030  !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 511                108.1     52.4     3.40    3175    96.6    60191    9608   1.038  !DANGEROUS LOAD-DO NOT USE!
Vihtavuori N550 *C                 108.2     50.3     3.26    3172    98.1    60191    9498   1.048  !DANGEROUS LOAD-DO NOT USE!
ReloadSwiss RS 62                  110.0     52.5     3.40    3169    97.8    57943    9591   1.057  ! Near Maximum !
Winchester 760                     105.6     50.8     3.29    3168    95.7    60191    9542   1.041  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H414                       105.6     50.8     3.29    3168    95.7    60191    9542   1.041  !DANGEROUS LOAD-DO NOT USE!
Hodgdon LVR                        108.5     49.4     3.20    3161    97.7    60191    9302   1.040  !DANGEROUS LOAD-DO NOT USE!
Alliant Reloder-16 *C *T           110.0     48.8     3.16    3150    98.1    56879    9490   1.055  ! Near Maximum !
Bofors RL16 TZ *C *T               110.0     48.8     3.16    3150    98.1    56879    9490   1.055  ! Near Maximum !
Accurate 4350                      110.0     50.1     3.24    3140    98.0    57880    9343   1.071  ! Near Maximum !
Bofors RP3                         103.4     47.6     3.08    3134    99.7    60191    8881   1.063  !DANGEROUS LOAD-DO NOT USE!
Norma 203 old                      103.4     47.6     3.08    3134    99.7    60191    8881   1.063  !DANGEROUS LOAD-DO NOT USE!
Norma URP *C                       110.0     49.5     3.21    3129    97.8    57217    9306   1.064  ! Near Maximum !
Bofors RP19 ~approximation         110.0     49.5     3.21    3127    97.8    57154    9301   1.065  ! Near Maximum !
Rottweil R903                      105.7     47.6     3.08    3126    99.6    60191    8794   1.063  !DANGEROUS LOAD-DO NOT USE!
Ramshot Hunter                     110.0     51.7     3.35    3122    95.9    57026    9470   1.063  ! Near Maximum !
Somchem S355                       105.4     47.0     3.04    3115    99.5    60191    8772   1.061  !DANGEROUS LOAD-DO NOT USE!
Norma 204 *C                       109.7     51.6     3.34    3114    92.9    60191    9237   1.041  !DANGEROUS LOAD-DO NOT USE!
Hodgdon H380                       102.3     47.6     3.08    3114    97.8    60191    8986   1.059  !DANGEROUS LOAD-DO NOT USE!
Accurate 4064                      103.5     46.1     2.99    3113   100.0    60191    8358   1.083  !DANGEROUS LOAD-DO NOT USE!
Lovex D073.6                        98.1     46.0     2.98    3109   100.0    60191    8353   1.067  !DANGEROUS LOAD-DO NOT USE!
Accurate 2520                       95.9     46.0     2.98    3109   100.0    60191    8353   1.067  !DANGEROUS LOAD-DO NOT USE!
Shooters World Match Rifle          98.1     46.0     2.98    3109   100.0    60191    8353   1.067  !DANGEROUS LOAD-DO NOT USE!
PB Clermont PCL 518                110.0     51.7     3.35    3095    95.1    55539    9432   1.075  ! Near Maximum !
Lovex S070                         110.0     49.5     3.21    3095    95.8    59911    9015   1.064  !DANGEROUS LOAD-DO NOT USE!
Shooters World SW4350              110.0     49.5     3.21    3095    95.8    59911    9015   1.064  !DANGEROUS LOAD-DO NOT USE!
Accurate 2495                       97.5     43.4     2.81    3095   100.0    60191    8034   1.088  !DANGEROUS LOAD-DO NOT USE!
Shooters World Long Rifle          108.6     48.4     3.13    3082    97.0    60191    8784   1.063  !DANGEROUS LOAD-DO NOT USE!
Lovex S065                         108.6     48.4     3.13    3082    97.0    60191    8784   1.063  !DANGEROUS LOAD-DO NOT USE!
SNPE Vectan SP 7                    96.4     47.1     3.05    3080    97.7    60191    8648   1.063  !DANGEROUS LOAD-DO NOT USE!
Bofors RP4 NT *C ~approximation    110.0     50.8     3.29    3080    94.7    58041    9033   1.065  ! Near Maximum !

stevelsd · Wednesday at 2:41 PM

Super nice and very informative reply JimBire
I have had QL for over 9 years and did not now how you and Dr MIke and others used it other than populate just the default Screen!

This helped me a lot for future riel loads as well

Thank you!!

RL338 · Wednesday at 5:57 PM

stevelsd said:
Can a Filling/L.R. over 100% be safe?

In your case yes. A compressed load is safe as long as it’s under maximum pressure.
With 120gr BT you may want to look at Varget or something close in that burn range to avoid a compressed load.

frankm · Wednesday at 10:12 PM

I would think N550 would make a nice load with a 120 gr bullet. I use it with 139-140 gr bullets.

jimbires · Thursday at 4:59 AM

stevelsd said:
Super nice and very informative reply JimBire
I have had QL for over 9 years and did not now how you and Dr MIke and others used it other than populate just the default Screen!

This helped me a lot for future riel loads as well

Thank you!!

I did goof in my previous reply . I'll edit it now . yesterday I wrote I like to work in the 100 - 105% case fill , that is wrong . I like to be in the 95% - 105% .

I like to work in the 95% - 105% case fill . I'll work a little over 105% , and I'll work a little under 95% , but I try to work between 95% - 105% . I like a full case . I ALWAYS use a drop tube funnel trying to avoid powder crunch . when working with a high case fill the powder can push the bullet back out . the cure I found for this , is to run the ammo through the seating die again the next day . after the second seating the COAL stayed at spec . I ran into this using IMR7828 in a 243 . this was before IMR7828sc was available .