What is everyone's favorite cast boolit and load for the 308 Winchester ? I am wanting to try the rcbs 165gr. Sil. Mold and load some up for a Savage heavy barrel 308.
What is everyone's favorite cast boolit and load for the 308 Winchester ? I am wanting to try the rcbs 165gr. Sil. Mold and load some up for a Savage heavy barrel 308.
My favorite is 19 gr of 2400 (if memory serves) for an MV of 1900 fps followed by 4198 for the same velocity. On a good day for me and my eyes, it is sub MOA but usually about 1.5" at 100 yards. My boolit is the Lyman 163 gr Loverin style but the Lee 160 gr RNGC is right there with it.
The NOE 311299 over 2400 18.0 gr is a winner.
I shoot the RCBS 165SIL, sized .311, over 26.5 gr. H4198 in a McGowan-barreled M700. Load won't quite match 168 gr. SMKs (MOA or better, depending upon how good I'm shooting that particular day) but will hold 2 1/2"-3" @ 200M and is one heckuva lot less expensive to shoot for practice.
Another load that works well for me is the Lee 312-155, sized down to .311, over 29.5 gr. H4895. I shoot this in one of the Spanish M1916s that was arsenal rebarreled to 7.62x51 in the 1950s...3" +/- groups @ 100M with issue sights.
Bill
"I'm not often right but I've never been wrong."
Jimmy Buffett
"Scarlet Begonias"
I am wanting to try the rcbs 165 Sil. Boolit or the Saeco #315 with some varget or RL-7 at around 2100 fps.
Lee 309-160R GC with 38 grains of H335 or 20 grains of 2400.
What's the twist of your Savage barrel? If it's a 1:10, you're probably going to find your best accuracy with that boolit somewhere in the 1850-2000 range. Dunno 'bout the Saeco #315 but I've tried the Lyman 311466 - a similar but slightly lighter Loverin design - with pretty much the same result. At 1870 fps (chrono'd) from my scoped .30-30 Savage 340 it kills 16 oz plastic soft drink bottles at 100M with boring regularity...pushed any harder, accuracy deteriorates expotentially with velocity increase.
Bill
Last edited by Kraschenbirn; 09-06-2015 at 08:09 PM.
"I'm not often right but I've never been wrong."
Jimmy Buffett
"Scarlet Begonias"
Yes, 1:10 twist. Around 2000 would be great if accuracy will hold up. I seen a thread on here awhile back and think it was a 200 grainer with 4831 that shot great but can't find the thread
My Rem 700 Tactical .308 (about 1:11 twist) shoots great groups at 100 yards (1 MOA) with the 165 RCBS Sil boolit over 19 grains of SR4759. I have no idea of the velocity but it's a very accurate load.
The closest .308 cast bullet I have to your 165g is the Lee C309-170-F. It shoots well anywhere from 10g Unique bare based to 2000 and 2375 fps with Reloader 7 with a gas check. These test shots were only at 50 yard (lower 2 groups) but I'm sure they will group well at 100.
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the rcbs silhouette boolit is not designed to shoot much over 1900 fps.
try 18grs of 2400.
or the 29,5gr load of 4895/4064/varget.
I have done better by using 28.5 grs of the first 2 and some Dacron to hold everything in place.
I just got two NIB molds. Ideal 311291 and RCBS 165 SIL. Have willing recipients in 4x 30-30s, 2x 300 Savages, 2x 308 Wins and 2x 30-06s. Figure they will get plenty of use!
31-165 B & C (170 with GC & PC), 2650 from 24" 1:10 - best I can do is 1 1/2" @100 so far. 42 gr. H 4895. It's an AR so I can't go very light, haven't really tried to find an accuracy load. LeverE works pretty well too (not chronied), as does H335. As R5R states, dacron helps sometimes, depending on the load fill. IMHO, the dacron not only takes up air space (increased load density) but keeps the powder burn flame front perpendicular to the base. I know the burn is really fast but high pressure on one side of the base can't be good.
Whatever!
For accuracy loads with bullet weights from 165 to 200 grs. I really like 28 grs. of Varget.
My go to 308 load is 26 grns of AA2495br under the Lee 309-170-F. It shoots under 1 1/2" at 100 yds out of 3 different Ruger 77's. It chronographs 100 fps out of a 22" mk2. I haven't chronographed it out of my sons new 77 compact with 16" barrel or my cut down tang safety 18" 77.[IMG] These are the last 2 groups out of the 18", None of these rifles shoot jacketed bullets any better than this load.[/IMG][IM[IMG]
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25.5 grain 3031 under NOE 30XCB Boolit 1860fps
also got really good results with the LEE 312-160 same load
both water dropped 50/50 alloy Lino/Pb
Tony
PS 100 yrds 5 shot groups
diamond on target is 1" point to point
lee 160gc 18gr 2400 in my savage 116 groups arround 1-2 at 100 yards ,im the weak link
311299, 18 gr 2400... Same load for .30-06.
314299, 16 gr 2400 for my .303 #4Mk 1 Enfield.
Weigh the individual Boolits and categorize them in groups 205.1 gr,,205.2 gr etc. and keep them together after loading..
Shoot your targets with those groups of boolits.
I have found this makes a significant difference on the group sizes.
Randy
"It's not how well you do what you know how to do,,,It's how well you do what you DON'T know how to do!"
www.buchananprecisionmachine.com
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