I sized some RanchDog CTL-311-165-FN bullets for my Remington Spartan single shot rifle. The bullets cast large enough that I could size/check them at .3125" that my rifle likes best. Bullets were lubed once before sizing with LLA and twice after sizing/checking with 45:45:10 Recluse tumble lube.
Measurements with a dummy load indicated the bullet kissed the lands at a surprising 2.245" and cartridges were loaded to 2.240" LOA for first range test shooting.
The RanchDog bullets are big, long, huge meplat hunting bullets and I was concerned that LOA would be shorter than I wanted. After testing LOA, I found the RD bullets could be seated with the gas check completely in the neck of the cartridge. I have used lighter pointy nose cast bullets in the 7.62X39 that had to have the gas checks seated past the neck. The RD bullets are actually short for their weight due to the extreme meplat and loaded nice into the 7.62X39 with no dangling gas check.
I chose Accurate 2230 powder as I have used it with heavier bullets and heavier charges with My Spartan rifle and have seen no pressure issues. Although the Lyman 4th Edition Cast Bullet Manual lists my present charge/bullet weight as MAXIMUM, I expect no signs of pressure as I have gone a whack past this load with heavier bullets:
RD CTL-311-165-FN sized .3125", BHN15 Alloy
All up bullet weight = 163 gr.
Charge= 25.3 grains A2230
Primer= CCI 200LR
Velocity Expected ~ 1950 fps
Rifle: Remington Spartan single shot, 24" chrome lined barrel, 1 in 10 twist.
I will range this load for accuracy and continue to work up charge and LOA to engage the lands.
Potential looks pretty hopeful.
Last edited on Wed Jul 11th, 2012 11:57 am by onondaga
I got excited and went right to the range. The new RanchDog load for the Spartan 7.62X39 did fine. There were no significant cartridge dimension changes to indicate high pressure and primers showed no sign of pressure.
Five groups of 5 shots were fired at 50 yards. The largest was 1.110" and here is an average group:
Group size here is .604 X .607" at 50 yards with an Average to Center MOA of 0.619 or .324" as measured with my OnTarget software. I prefer Average to Center measurements for evaluating a hunting rifle. ATC measurement indicates how far the shot centers are from the group center on average.
All was business at the range but concentration was difficult with a member shooting a Ruger .460 next to me. I have good ear protection but his muzzle blast was hitting me in the face and rocking the bench. I think I could have done better on paper without him there! It was 10 cent chicken wings at my clubhouse at LaSalle Sportsmen in Niagara Falls so I pigged out too.
The lack of pressure signs with the test load and very acceptable Deer hunting accuracy has me wanting to up the charge for the next range visit. The cartridge is loaded to about 97% capacity, If it will hold accuracy and have no pressure signs, I will go to 100% with the A2230 powder but will not compress a ball powder. I am very pleased with the RanchDog bullet performance in my 7.62X39 Remington Spartan Rifle and I feel the big flat nose bullet will smack down deer well.
Last edited on Wed Jul 11th, 2012 12:09 pm by onondaga