Nei 200358gc

[augois]

I have a marlin336sc I think it was born in 1951, I think (H serial # prefix) and thus does not have Micro-groove rifling. Do any of Y'all shoot the NEI 200358GC bullet from a similar rifle, and if so do Y'all have a favorite potion, concoction, or recipe? just curious. BTW with WW alloy, mine fall out of the mold at ~220grs.

[Marlin Junky]

To date, I've only had the time to experiment with heavy loads in my "H" gun using SAECO 352. However, AA2520 and DP-74 at max loads shoot very well and deliver about 2100 fps (from the 24" bbl) to the 245+ boolit. The AA2520 would probably be better for the 220 but I wouldn't hesitate trying anything from 4895 to 4320. If your gun is anything like mine (there's a lot of variation out there) you may need at least a .360" boolit. I've noticed some SC's that are a little tighter in the grooves the A's though. Let us know how your barrel "mikes-out". Having an odd number of grooves (7) doesn't make them easy to get a handle on the barrel specs but mine looks like it measures .3600" near the chamber and .3595" at the muzzle. I needed to shim #352 to get boolits fat enough and don't nomally do that because it produces out of round boolits that aren't as accurate as round boolits (doesn't really matter if you only shoot iron sighted rifles at 100 yards or less). Nevertheless, I was able to produce some pretty round .3605" boolits (ready to fly) from my SAECO 352 mold and Lyman .360" sizer. These typically shoot 1.5-1.75" five round groups at 75 yards with a Williams receiver sight and a front sight that precisely matches the target... when I hold correctly.

MJ

[Bass Ackward]

I am a newbie. But my question is, do these things ever shoot anything badly?

Please somebody tell me yes so I can have hope. This gun is boring.

From my vast experience, :grin: my advice would be to pick a rational powder, pour a safe charge, shoot 5 rounds and put it in the safe.

[augois]

To date, I've only had the time to experiment with heavy loads in my "H" gun using SAECO 352. However, AA2520 and DP-74 at max loads shoot very well and deliver about 2100 fps (from the 24" bbl) to the 245+ boolit. The AA2520 would probably be better for the 220 but I wouldn't hesitate trying anything from 4895 to 4320. If your gun is anything like mine (there's a lot of variation out there) you may need at least a .360" boolit. I've noticed some SC's that are a little tighter in the grooves the A's though. Let us know how your barrel "mikes-out". Having an odd number of grooves (7) doesn't make them easy to get a handle on the barrel specs but mine looks like it measures .3600" near the chamber and .3595" at the muzzle. I needed to shim #352 to get boolits fat enough and don't nomally do that because it produces out of round boolits that aren't as accurate as round boolits (doesn't really matter if you only shoot iron sighted rifles at 100 yards or less). Nevertheless, I was able to produce some pretty round .3605" boolits (ready to fly) from my SAECO 352 mold and Lyman .360" sizer. These typically shoot 1.5-1.75" five round groups at 75 yards with a Williams receiver sight and a front sight that precisely matches the target... when I hold correctly.

MJ

Is that Saeco 352 a 245gr boolit? How did you get such a large chunk to function in a levergun? I thought my 220gr was big. I would love to have a 245gr thumper.
I am a fan of big, heavy, plodding boolits.

Oddly enough, I havn't tried AA2520 yet as it seems to be my all time, all around favorite powder.
any suggestions on starting loads?

[Marlin Junky]

I am a newbie. But my question is, do these things ever shoot anything badly?

Please somebody tell me yes so I can have hope. This gun is boring.

From my vast experience, :grin: my advice would be to pick a rational powder, pour a safe charge, shoot 5 rounds and put it in the safe.

Bass,

And you don't even need to clean their barrels! Too bad the barrel makers today are a bunch of hammer-forging, button rifling, sissies. :mrgreen:

MJ

[Marlin Junky]

Is that Saeco 352 a 245gr boolit? How did you get such a large chunk to function in a levergun? I thought my 220gr was big. I would love to have a 245gr thumper.
I am a fan of big, heavy, plodding boolits.

249+ grains bare in 50/50 alloy. When I refer to 50/50 I mean 50% clip-on wheel weight metal alloyed with 50% Pb. This boolit is made for the .35-336. When the GC is seated to the base of the shoulder, the COL is well within spec. Actually, my impression is, there's more room in front of the receiver than necessary, but the short throat of the 336A won't alloy seating the bullet out any farther than just about to SAAMI max. Don't expect 2100 fps from your SC though... that is a max. load in my 24" 336A. 2000 fps would be a more reasonable max for your gun. My gun also has a pretty big chamber... too big for FL sizing for every reload (I use a Lee Collet die as much as possible).

http://www.grafs.com/product/199151

MJ

[Marlin Junky]

Oddly enough, I havn't tried AA2520 yet as it seems to be my all time, all around favorite powder.
any suggestions on starting loads?

Using SAECO 352 at about 240 grains bare weight (ACWW & bar solder) I stopped at 39 grains with canistered AA2520 which got the rounds going a bit over 2000 fps from my 24" "H" gun. I suggest starting at 35 grains with canistered AA2520 assuming your boolits are dropping from the mold at right around 240 grains. Be careful and watch for pressure signs... don't give your old 336 a steady diet of 40K CUP loads.

MJ