I did something stupid with my 7.5 swiss

[deanyang]

Jet bullets
Bullet barn

thanks. Should I choose soft or hard cast?

 

[OkayShooter]

There also Red Dot powder. I run 12grn with 150grn in my 308.

 

[vagrantviking]

Many of the fast powders used for shotgun or handgun can work with reduced loads and cast bullets. Old reloading books usually had at least a couple pages for cast and Lyman did a couple books just for lead bullets. Castboolits forum has a lot of information that takes a little finding. Going to a particular sub forum and use the search in thread option works better than trying to search the whole thing.

For smokeless powder and a bullet 1-3 thousandths bigger than groove diameter you generally want hard cast.

 

[diopter]

Remember that the 7.5x55 case is larger than 308 Win, so a 308win load will produce less pressure in the 7.5x55 case.


.308 Winchester (Hodgdon CFE 223 Data)
Warning! Notes: case: Winchester; barrel length: 24"; twist: 1:12"; trim length: 2.005"; primer: Federal 210M; bullet diam.: .308"; NEVER EXCEED MAXIMUM LOADS
Be Alert: Publisher cannot be responsible for errors in published load data.
Wt. Bullet Powder Manufacturer Powder Charge Velocity (FPS) Favorite?

130 Speer HP Hodgdon CFE 223 52 3054
Remarks: start load; col: 2.615"; 49,600 psi
130 Speer HP Hodgdon CFE 223 54 3202
Remarks: max load; col: 2.615"; 59,500 psi

150 Nosler BT Hodgdon CFE 223 48.4 2764
Remarks: start load; col: 2.800"; 44,500 psi
150 Nosler BT Hodgdon CFE 223 51.5 2974
Remarks: max load; col: 2.800"; 57,000 psi

150 Nosler E-Tip Hodgdon CFE 223 49 2865
Remarks: start load; col: 2.800"; 52,300 psi
150 Nosler E-Tip Hodgdon CFE 223 51.1 2990
Remarks: max load; col: 2.800"; 60,400 psi

150 Nosler E-Tip Hodgdon CFE 223 49 2865
Remarks: start load; col: 2.800"; 52,300 psi
150 Nosler E-Tip Hodgdon CFE 223 51.1 2990
Remarks: max load; col: 2.800"; 60,400 psi

155 Sierra HPBT Hodgdon CFE 223 49.5 2846
Remarks: start load; col: 2.775"; 50,900 psi
155 Sierra HPBT Hodgdon CFE 223 51 2966
Remarks: max load; col: 2.775"; 60,500 psi

165 Hornady SP Hodgdon CFE 223 45.4 2649
Remarks: start load; col: 2.750"; 46,700 psi
165 Hornady SP Hodgdon CFE 223 48.3 2839
Remarks: max load; col: 2.750"; 61,500 psi

168 Sierra HPBT Hodgdon CFE 223 46.6 2662
Remarks: start load; col: 2.800"; 48,200 psi
168 Sierra HPBT Hodgdon CFE 223 49 2828
Remarks: max load; col: 2.800"; 60,400 psi

175 Sierra HPBT Hodgdon CFE 223 45.5 2612
Remarks: start load; col: 2.800"; 49,600 psi
175 Sierra HPBT Hodgdon CFE 223 47.5 2752
Remarks: max load; col: 2.800"; 60,400 psi

180 Speer SP Hodgdon CFE 223 42.9 2502
Remarks: start load; col: 2.800"; 52,500 psi
180 Speer SP Hodgdon CFE 223 45.1 2615
Remarks: max load; col: 2.800"; 61,100 psi

190 Hornady BTSP Hodgdon CFE 223 41.4 2388
Remarks: start load; col: 2.740"; 46,500 psi
190 Hornady BTSP Hodgdon CFE 223 45 2589
Remarks: max load; col: 2.740"; 60,200 psi

200 Swift SP Hodgdon CFE 223 41.7 2362
Remarks: start load; col: 2.700"; 48,600 psi
200 Swift SP Hodgdon CFE 223 45.3 2582
Remarks: max load; col: 2.700"; 60,600 psi

 

[Tick]

H4895 has a reduced load starting with a 60% of the max with a warning note not to use IMR 4895 for reduced loads.

 

[deanyang]

There also Red Dot powder. I run 12grn with 150grn in my 308.

also cast bullets I assume?

 

[Snider shooter]

also cast bullets I assume?

Yes cast bullets.

 

[Andy]

also cast bullets I assume?

Doesn't have to be.

Speaking of Red Dot - that's very timely. Look here: https://www.canadiangunnutz.com/forum/showthread.php/2227167-Hornady-30-cal-190-gr-Sub-X-bullets

 

[jethunter]

H4895 has a reduced load starting with a 60% of the max with a warning note not to use IMR 4895 for reduced loads.

I wouldn't be worried whatsoever to use IMR4895 for reduced loads.