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Did 50 yard range test on a son's 336 Y 30-30 with a sand bag rest. The results of 4 shot groups follows.

1) Remington 150 gr - 2.5" pattern

2) Win 150 gr silver - 2" pattern

3) Federal Premium 150 gr blue box - 2 1/4" pattern

4) Hornady 160 gr gummy tips - 3" pattern

5) Federal 170 gr Fusion - 1.5" pattern

6) Win 170 gr silver - 1.25" pattern

7) My favorite handload, 150 gr Horn RN over 39.0 gr 748, WRL primer. Rem brass - 3/4"
 

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Hard to beat the handload ;), I vote for #7 :), Lonnie.
 

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And the winner is #7!!! Take care, John.
 

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That is a good load. I used to use a lot of WW748 in my 336 Cowboy and a Win M94. It was the most bang for the buck. Looks like that reload is hard to beat.
I have some serious envy on your spike horn ;).
 

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39.0gr of #748 ????

Yikes !!!

Hodgdon lists 37.0gr as max. (BLC2- same powder but different lot#'s as #748)
But, I've used 37.5gr in a 336A w/24" bbl and got over 2,400fps, but it WAS max for my rifle...

If it's not too hot for your gun, It'll DO !!

I get 2,400fps from my 20" bbl Glenfield/Marlin M30 with 36.0gr of RL15. Never saw the point of going heavier. I do get 2,500fps with the Speer 130gr and 37.5gr of RL15.

With the excellent 150 and 170gr Corlokts, I just don't feel the need to hot-rod the .30/30 any more.
That and the .338MX thats my constant companion now......
 
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