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Discussion Starter · #1 ·
I recently picked up my first 45-70, a new Marlin GBL.
I found no crack in the receiver, and the fit and finish is quite good - thanks for the heads up in the warning sticky.
I ran a box of Remington 405 JSP rounds through it to get on paper with my Skinner Sights while waiting for a set of Cowboy dies, some brass, and some cast 405's.
My only issue for the moment is lack of powder. I loaded a dozen rounds covering a 4 grain spread using the IMR 4895 I have on hand and tried them out today - not much variation in groups - I think I'll stay at the low end with this powder.
I love this rifle, and am excited to join this forum.
Middkid


Gun Shotgun Wood Air gun

 

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MIDDKID,

First, ----- Welcome aboard!!!!!!!!!!!

Dozen rounds with a 4 grain spread ?????????????

That should have given you some idea as to the possibilities of pressure problems with that bullet and powder, but there would be just too many gaps in the info to really tell you if the rifle is going to like and do well with that powder.

Forget trying for "warp speeds" as with a good cast bullet of over 400gr with a Wide Flat Nose (WFN) those velocities will simply not be needed or enjoyable to shoot.

When working up loads, it is best to work up with maximum of a 1 grain spread between test groups and 1/2gr is better if your anywhere close to what the rifle is liking.

Enjoy, be safe and keep us posted as to your results.

Crusty Deary Ol'Coot
 

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Welcome from Texas
 

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Welcome from the People's Republic of Austin, Texas. Like Crusty Dreary old Coot said, with a 405 grain bullet velocity doesn't matter all that much, other than "warp speed" makes for not too enjoyable shooting. You're going to love that rifle in any case.
 

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Welcome from Vermont.

Have fun and be safe.
 

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Welcome to the forum, thats a nice looking GBL!!


Doc
 

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Welcome from Mesquite Texas Middkid ..... you have a nice lookin rifle Sir , we're all hoping it does well for ya man , injoy M/O site . Several 100's of years of experience here with All the Marlin Rifles , Bullet Casting and loading's Esp: in your 45~70 caliber .... Have a Ball with the mo guy's :biggrin:
 

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Discussion Starter · #15 ·
Thanks for the warm welcome everyone!


MIDDKID,

First, ----- Welcome aboard!!!!!!!!!!!

Dozen rounds with a 4 grain spread ?????????????

That should have given you some idea as to the possibilities of pressure problems with that bullet and powder, but there would be just too many gaps in the info to really tell you if the rifle is going to like and do well with that powder.

Forget trying for "warp speeds" as with a good cast bullet of over 400gr with a Wide Flat Nose (WFN) those velocities will simply not be needed or enjoyable to shoot.

When working up loads, it is best to work up with maximum of a 1 grain spread between test groups and 1/2gr is better if your anywhere close to what the rifle is liking.

Enjoy, be safe and keep us posted as to your results.

Crusty Deary Ol'Coot
My post wasn't very clear. I was looking at trapdoor data and loaded three rounds each at 46 , 47, 48, and 49 grains.
My groups were at 50 yards and were between 2 and 3 inches. I'm sure a little more practice with the rifle and a little more patience with my practice will help!
From lurking here the past month I have picked up on the idea of looking for good results with moderate loads.
I am looking forward to more load development and more trigger time.
Thanks again.
Middkid
 

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Ya got one fine ,lookin rifle there! :congrats:A big welcome from Georgia!
 
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