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Loading for Bob #14201251 10/14/19
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J23 Offline OP
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I've been messing around with some of the Pet Loads from this board for my Shilen-barreled Ruger 77 Ultralight in the standard 257 Roberts. I think I found a keeper this weekend. Considering the barrel is the diameter of a #2 pencil, I was plenty impressed. I need to run a few over the chronograph but I'm thinking they're running about 2,800fps out of the 22" tube.

Just wanted to share.

[Linked Image from i.imgur.com]

Last edited by J23; 10/14/19.
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Re: Loading for Bob [Re: J23] #14202436 10/14/19
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Good shooting. My Bob loves 42 grains of IMR-4350 with a 100 grain partition. Shoots little bitty buttholes. Good luck with your load!


You only live once, but...if you do it right, once is enough.
Re: Loading for Bob [Re: J23] #14202488 10/14/19
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agazain Offline
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Wrecked brass with only 42 grains IMR 4350 in mine and 117 grain Hornadys : Post-64 Model 70 with a heavier barrel. Came apart at web after four loadings.


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Re: Loading for Bob [Re: J23] #14338643 12/05/19
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buttstock Offline
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Had a m98 257 Roberts that shot dime-sized 100 yard groups with 100 grain Hornadys, over 45 grains IMR 4350.

Still trying to figure out why I sold that rifle 20 years ago.


"Behavior accepted is behavior repeated."
Re: Loading for Bob [Re: J23] #14339282 12/05/19
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IMR4350 is best in my Bob too.


Life member NRA
I prefer classic.
Sgt USMC - a few years ago
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Re: Loading for Bob [Re: agazain] #14342244 12/06/19
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alpinecrick Offline
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Originally Posted by agazain
Wrecked brass with only 42 grains IMR 4350 in mine and 117 grain Hornadys : Post-64 Model 70 with a heavier barrel. Came apart at web after four loadings.


My first guess is you're oversizing the brass.......


Casey

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Having said that, MAGA.
Re: Loading for Bob [Re: J23] #14342637 12/06/19
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michiganroadkill Offline
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My 77 RL Bob likes 110 gr ABs with 43 gr or RE16
Haven't chronied it yet.

Size the brass to fit your chamber.

Last edited by michiganroadkill; 12/06/19.

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Re: Loading for Bob [Re: J23] #14342849 12/06/19
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DubThomas Offline
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My Model 70 FWT loves the 90 grain X bullet/45.0 grains IMR 4350/Rem 9-1/2 primer. It shoots less than .5 MOA all day long and had probably killed more critters than nay other rifle I have. It also likes the 100 grain Nosler BT with the same recipe. Once I'm out of the X bullets I'll use the Nosler BT. I sure wish Barnes would bring back that 90 grain bullet.


The lack of planning on your part does not constitute an emergency on my part!
Re: Loading for Bob [Re: alpinecrick] #14343272 12/06/19
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agazain Offline
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Originally Posted by alpinecrick
Originally Posted by agazain
Wrecked brass with only 42 grains IMR 4350 in mine and 117 grain Hornadys : Post-64 Model 70 with a heavier barrel. Came apart at web after four loadings.


My first guess is you're oversizing the brass.......
Nope, WW brass sucks. And, the rifle chamber is tight. Loads too hot as shown by good results with other brass offerings.

Best results with the 4831's since.


Dialogue is not double monologue. Truth is not threatened by investigation.
Re: Loading for Bob [Re: J23] #14343449 12/06/19
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Dirtfarmer Offline
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Another Bob load. This one in a LA 700, so COAL is a bit much for a SA.

It's a proven WT killer. H100V is the velocity champ in the Roberts. It's not the most temp stable, but burns clean. Good load with no pressure issues.

This is pushing 25-06 territory.

DF

[Linked Image from i.imgur.com]

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Re: Loading for Bob [Re: J23] #14347957 12/07/19
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308ld Offline
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.


Ed
Re: Loading for Bob [Re: J23] #14354808 12/09/19
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In my model 70 pre 64 I used 43.5 gr of IMR4350 with 115gr Nosler partitions, this produced 2925 FPS. Now I use RL23 with 47.5 gr of powder same billet at 3125 FPS. MRP gave about the same velocity. RL 26 gave 3133 FPS but might go a little more.

Re: Loading for Bob [Re: GunTruck50] #14354878 12/09/19
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Originally Posted by GunTruck50


In my model 70 pre 64 I used 43.5 gr of IMR4350 with 115gr Nosler partitions, this produced 2925 FPS. Now I use RL23 with 47.5 gr of powder same billet at 3125 FPS. MRP gave about the same velocity. RL 26 gave 3133 FPS but might go a little more.




How about accuracy with those four loads?

DF


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