Ramshot LRT and/or US 869 in a 6.5 Sherman Long?

[Silver_Is_Money]

Has anyone tried either of these powders in their 6.5mm Sherman Long (the one formed from .270 Win. brass)?

 

[Brandon.in.parts]

I use RL23 in my Dad's 270 Sherman. Running 148gr Hammers at 3000'.

 

[FEENIX]

Has anyone tried either of these powders in their 6.5mm Sherman Long (the one formed from .270 Win. brass)?

Bullet?

 

[Silver_Is_Money]

Bullet?

140 grain SP or BTSP types.

 

[FEENIX]

140 grain SP or BTSP types.

It's not a typical bullet/powder combination that 6.5 Sherman owners load, but here's a baseline that might help you: https://shermanwildcatcartridges.com/sherman-load-data. You might also use loads for 6.5-06 (https://hodgdonreloading.com/rldc/?t=1). LRT and US869 might be too slow, but it does not mean it will not work. Good luck!

 

[Trnelson]

what you posted will work. You will find though that you will likely run out of room before you get where it works best. A heavier bullet will work more efficiently for you with that powder

 

[Silver_Is_Money]

what you posted will work. You will find though that you will likely run out of room before you get where it works best. A heavier bullet will work more efficiently for you with that powder

Would you know if Ramshot LRT is as slow burning as US 869?

 

[FEENIX]

Would you know if Ramshot LRT is as slow burning as US 869?

US869 is much slower.

SOURCE: https://hodgdonpowderco.com/wp-cont...mokeless-Relative-Burn-Rate-Chart-WEBSITE.pdf

 

[oldfamily]

Ramshot magnum or reloder 26 has produced the best results with Berger bullets ranging from 140 to 156.

 

[KMG]

I had to go back & check my records as I knew I ran a pressure test with LRT in my 6.5SS. I ran 62-70grs. with a 160 Matrix, Norma brass, WLR primer, & no issues in my set up. Slightly flat primer but no stiff bolt lift & all went in about a 1 MOA group @ 100yds. I never went further to develop a final load development.

 

[Silver_Is_Money]

I had to go back & check my records as I knew I ran a pressure test with LRT in my 6.5SS. I ran 62-70grs. with a 160 Matrix, Norma brass, WLR primer, & no issues in my set up. Slightly flat primer but no stiff bolt lift & all went in about a 1 MOA group @ 100yds. I never went further to develop a final load development.

Thanks! Were any of those compressed charges?

 

[KMG]

Thanks! Were any of those compressed charges?

Yes, 67-70 if memory serves me correctly. I know 68 grains of RL33 with a 140 Hybrid is crunching kernels even after vibrating to settle the powder. LRT seems bulkier. Purely speculation, but I don't think you could fit enough LRT powder in the 6.5SS to even have an overload.

 

[ARlife4me]

what's the average case capacity on that brass?