CPA finished installing the barrel on my Mod52 and I'm hoping to get it out to the range next weekend. I have three powders I feel should work well in the 40-50ss.

300-mp
4759
4227

I'll be using a Ron Long 400gr tapered bullet breach seated.

I was thinking a good starting charge would be 15grs for each of these powders. I'm looking for some feedback from others who have experience with the 40-50SS.

Thanks in advance,

Bob

ledball wrote on Feb 28^th, 2014 at 5:27pm:


Thanks ledball. I still have a good supply of 16yr old #9. I'll add it to my list of powders to try.

Bob

My standard load for years; 16.5 gr 4759 with a 410 gr bullet.  Competitive.

Quote:


Andy,

That's close to what I'll be shooting. I'll give it a try. Are you using floral foam wads with yours?

Thanks,
Bob

Andy,

Thank you.

Bob

John,

300mp is defiantly one of the powders I'll be trying. It meters great in my Harrell's Schuetzen measure. I have a good supply of 4759 I want to use up since it will be discontinued.

What bullet are you using? If you can let me know what stetting your using on your measure. 

I've been using floral foam and pipe insulation wads in my 32-20 with good results so I'll try them in the 40-50. 

Thanks,
Bob

Here's the bullet I'm using from my Accurate mould. It's a 385gr tapered with a .409dia base band.

Hi Frank,

I did try the Ron Long bullet when I fire formed my cases with 4227. Accuracy was ok. The base band on that bullet is .411 dia and weighed 395gr cast 1-20. I noticed the fowling star at the muzzle was not even. Out of curiosity I pushed out a few bullets after breach seating. The bases had a slight fin on one side. I was concerned the base band was too large for the .408 bore dia. This was when I used a plugged case. I'll try them again with the breach seater I got from Quarter_Bore in the future.

The 385gr bullet I'm shooting is a Ron Long design made for me by Accurate with the base band reduced to .409. I do have Fed 150 primers and will give them a try.

Regards,

Bob