07 April 2006, 01:21
adam5432002257 Roberts Reduced loads
I just got some blue dot powder and was wondering if there is any reduced loads for my 257 roberts. Id like it to be as quite as possible. I will be shooting seirra 90gr Hps and 87gr speer TNTs. Im not shure how quite it can be because of case capasity? If anybody has any loads please give me some info, thanx for all the help, Adam.
07 April 2006, 05:45
adam5432002Someone gotta know some quite loads for this?
07 April 2006, 06:15
jeffeossoI read this title and thought
"you mean FACTORY" loads"
jeffe
07 April 2006, 07:10
ricciardelliSR-4759 From 15.0 grains to 17.0 grains
Remington 9-1/2 Primer
10 April 2006, 19:49
BigNateYou specified Blue Dot and for that I have nothing I can share. Nate
10 April 2006, 20:10
DigitalDanAdam, dunno how quiet you think quiet is, but when you start fiddling around the subsonic range with jacketed bullets you're risking a "p-pfff-t" noise. Translated=bullet stuck in the bore. Your next shot is likely to be a bit louder and perhaps messier if you don't clear the bore first.
I have no specific recommendation for a load such as you seek, but if you really want quiet you need to switch to cast lead bullets, and small charges of fast powder. Blue dot will do, or Bullseye, something like that. Discharge volume is mostly a matter of expansion ratios, but in the main the less of everything the better. Lyman makes a mould for a 70 gr. flat nose design suitable for the 1/4 bore, give it a try.
Quiet loads with jacketed bullets is usually unsatisfactory, and sometimes quite risky. My advice is "Don't go there."
12 April 2006, 19:04
hatsfieldquote:
Originally posted by adam5432002:
I just got some blue dot powder and was wondering if there is any reduced loads for my 257 roberts. Id like it to be as quite as possible. I will be shooting seirra 90gr Hps and 87gr speer TNTs. Im not shure how quite it can be because of case capasity? If anybody has any loads please give me some info, thanx for all the help, Adam.
hey man i have been loading 257roberts for about 3 years i dont no how to get it really quit but the best over all powder that i have found and works the best that i have found is H4895 on 90gr this is subsonic, your looking at 38.5gr. will give you a volocity of 2954 or max in which i try not to use is 42gr.which speeds this puppy up to 3372 on your 87gr. you can use RELOADER15 or RELOADER12 hope this helps you out the best and overall round for this gun is the 100gr. history says and i agree.