RCBS 180 Grainers...

3947 Views 6 Replies 3 Participants Last post by 45 2.1, Sep 5, 2003

Forty Four

Discussion Starter · Aug 29, 2003

I'm shopping for a new 30-30 "heavy weight" and was wondering if anyone out there can provide input on the nose diameters for recently manufactured RCBS 30-180FN and 30-180SP. I'd also really like to know the meplat width on RCBS 30-180SP before purchasing. The RCBS 30-200 Silhouette is also of interest to me but I'm afraid it's just too darn long to be compatible with a M94 in 30-30.

Other possibilities under my consideration are SAECO#301 and Lyman 311644. Unfortunately SAECO#307 seems to have a little too much nose circumference for my '53 vintage M94 with its tight (slightly less than .3000") bore.

Thanks,
44

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45 2.1

· #2 · Sep 3, 2003

44-
The RCBS 30-180-sp, RCBS 30-200-SIL and the Lyman 311644 are too pointy for the tube magazine on your 94. The RCBS 30-180-FN is a good one. It will weigh 190 gr out of wheelweights and slightly engrave on the nose. The gas check and a groove will go into the powder space though. Mine shoots very well and has a large enough meplat to kill well. I don't have the Saeco numbers.

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Forty Four

Discussion Starter · #3 · Sep 3, 2003 (Edited)

45 2.1...

Could you provide load specifics using the 180FN? Can you quantitatively describe its trajectory over 250 yards?

Would it be possible to post the nose diameter of RCBS 30-180FN in your alloy?

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45 2.1

· #4 · Sep 4, 2003

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I use a full drop tubed ( 1/16" into neck ) compressed load of Hi Tech's 7383 surplus powder in fully sized RP cases with Rem Large rifle primers. Wheel weight bullet sized .311 with FWFBL lube and Hornady gas check. Nose diameter is about .3005". This gives about 1800 fps. Duplexing this slow powder hurts accuracy, so don't try it to increase velocity.
I don't shoot this past 150 yards. Look up the trajectory table for a jacketed 170 gr at this velocity to get an idea of the trajectory. This bullet weighs 190 gr., so it does a very good job on what it hits.

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MikeG

· #5 · Sep 4, 2003

Might take this up with John Kort and see if he has any suggestions:

http://www.shootersforum.com/showthread.htm?t=6121

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Forty Four

Discussion Starter · #6 · Sep 4, 2003

45 2.1...

Sounding good! I gotta ask... how does it group? Can you give me your best guess at a BC for this bullet? It doesn't look as streamlined as 311041 but all that sectional density should aid in velocity retention. My best guess by just lookin' at it would be around .220.

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45 2.1

· #7 · Sep 5, 2003

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Groups about 1.5 to 2 MOA with open sights out of 94's. I don't know the BC, but it shoots better than the 311041 at distance.

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