Reloading data for 240gr SMK in a 30-378

edenfies · #1 09-15-2008, 02:21 PM

I'm trying to develop a load for my Sako M995 30-378 using a 240 gr SMK. Please reply with any load data you have for this cartridge. Please include powder, primer, COL, and muzzle velocity. Thanks for the help.

edenfies · #2 09-16-2008, 01:56 PM

Has no one shot the 240gr SMK in a 30-378??

tonyo · #3 09-16-2008, 03:13 PM

So I posted bascially the same question about 2 weeks ago except I am using Wby Mark V and it doesnt sound like there is much out there on this load???

I started with 240 SMK, 104gr US869, CCI 250 primers, 3.718 Overall length, Wby brass, and have averaged 2825 ft/sec 10' off muzzle. Producing 1" groups or better at 100 yards. I was hoping for better velocity closer to 3000 ft/sec but I have not found the magic combo yet?

I will be looking into H1000 powder to see if any potential exisist there, if anyone out there has experience please chime in.

Thanks.

canderson · #4 09-17-2008, 06:21 AM

I have a 30-378, and I am doing this from memory (please excuse any errors). My rifle is an accumark with a 1-10 twist. I believe a faster twist is need to shot the 240's. Sierra 210-220 and the berger 210, I believe are the heaviest reccommended for the 1-10. If you have any experience with shooting the heavier bullets with a 1-10 twist barrel please let me know.

Marine sniper · #5 09-17-2008, 09:11 AM

Quote:

Originally Posted by tonyo

So I posted bascially the same question about 2 weeks ago except I am using Wby Mark V and it doesnt sound like there is much out there on this load???

I started with 240 SMK, 104gr US869, CCI 250 primers, 3.718 Overall length, Wby brass, and have averaged 2825 ft/sec 10' off muzzle. Producing 1" groups or better at 100 yards. I was hoping for better velocity closer to 3000 ft/sec but I have not found the magic combo yet?

I will be looking into H1000 powder to see if any potential exisist there, if anyone out there has experience please chime in.

Thanks.

Have you tried Fed 215 primers ?

MT4XFore · #6 09-17-2008, 09:41 AM

Try www.reloadersnest.com - a reloaders resource They have some info that might help.

tonyo · #7 09-17-2008, 11:57 AM

Marine Sniper:

I have been unable to locate any 215 primers until yesterday I found a thread on this website for a guy who is offering them for sale. I will pick some up if he has any left. Do you suspect I'll see significant improvement over the CCI250?