sniper20
FNG
Hey guys,
I posted a few days ago looking for help finding a load for the Accura MR-X 45 cal that I have. I took it out again today, after putting a scope on it and figured I would share my experience I had.
I have tried a few different combinations, but finally found one that is going to work for me.
ALL OF MY POWDER CHARGES ARE BY WEIGHT!
Powder: Triple 7 FFG
Weight: 80 grains
Bullet: Powerbelt 285gr ELR
Primer: CCI Large Rifle Magnum (Variflame Conversion)
Velocity: 1800FPS
This provided me around 2MOA groups, not horrible, not great. Velocity was not where I wanted it to be.
Powder: Triple 7 FFG
Weight: 80 grains
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: 1750FPS
Groups were around 12" at 75 yards...
Powder: BH209
Weight: 80 Grains
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: UNK
Groups on this was horrible again, but velocity was right at 2,000FPS. Velocity was where I wanted it, accuracy was not.
Went out again today to try and see if I could find something better. I deep cleaned the rifle, made sure it was good to go with a fresh start. I did some research and found BPI commented on a Facebook post to try 77, 80, 82 and 84 grains by weight of BH209 with Powerbelt ELR's. I decided to put a scope on it since I was shooting a non-magnified Eotech.
I tried shooting 80 grains again with the Boredriver, and it provided me a lot better accuracy than the other day, but was still about 4MOA, not where I wanted it. I then decided to try 77 grains of BH209 and it gave me about 2.5MOA with the Hornady Boredriver bullets. I am still amazed as how the Hornady Boredrivers pretty much fall down the bore. Barely need more than the weight of the rod to push them down. The Powerbelts require just a touch more, but not much. The BH209 powder seems to make it smoother...
The load that performed for me...
Powder: BH209
Weight: 82 grains (again, by weight not volume)
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: 2008FPS
This load provided me with a 3 shot group, 1.1MOA. I shot 2 shots, they were touching. I fired a 3rd and it was almost touching, but not quote. Definitely the load for this rifle. I did try some mix and match of Winchester 209 primers and then CCI Large Rifle Magnum with the Variflame conversion. I didn't see any sort of a difference in velocity, but I can definitely see the LR primers are hotter (and told more consistent) than the Winchester 209 primers.
I'm hoping this helps someone who needs some help finding a load for their CVA MR-X rifle in 45 cal. If you don't want to weigh the charges, going off the conversion:
82 grains (weight) = Volume x 0.7 (117)
From what I have seen, they say 120 grains is going to be the max charge for BH209 powder, so if you go with that, hopefully it will work well for you. Again, I was getting right at 2,000 FPS, so that should help if you want to make a close drop chart.
I posted a few days ago looking for help finding a load for the Accura MR-X 45 cal that I have. I took it out again today, after putting a scope on it and figured I would share my experience I had.
I have tried a few different combinations, but finally found one that is going to work for me.
ALL OF MY POWDER CHARGES ARE BY WEIGHT!
Powder: Triple 7 FFG
Weight: 80 grains
Bullet: Powerbelt 285gr ELR
Primer: CCI Large Rifle Magnum (Variflame Conversion)
Velocity: 1800FPS
This provided me around 2MOA groups, not horrible, not great. Velocity was not where I wanted it to be.
Powder: Triple 7 FFG
Weight: 80 grains
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: 1750FPS
Groups were around 12" at 75 yards...
Powder: BH209
Weight: 80 Grains
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: UNK
Groups on this was horrible again, but velocity was right at 2,000FPS. Velocity was where I wanted it, accuracy was not.
Went out again today to try and see if I could find something better. I deep cleaned the rifle, made sure it was good to go with a fresh start. I did some research and found BPI commented on a Facebook post to try 77, 80, 82 and 84 grains by weight of BH209 with Powerbelt ELR's. I decided to put a scope on it since I was shooting a non-magnified Eotech.
I tried shooting 80 grains again with the Boredriver, and it provided me a lot better accuracy than the other day, but was still about 4MOA, not where I wanted it. I then decided to try 77 grains of BH209 and it gave me about 2.5MOA with the Hornady Boredriver bullets. I am still amazed as how the Hornady Boredrivers pretty much fall down the bore. Barely need more than the weight of the rod to push them down. The Powerbelts require just a touch more, but not much. The BH209 powder seems to make it smoother...
The load that performed for me...
Powder: BH209
Weight: 82 grains (again, by weight not volume)
Bullet: Hornady 280gr Boredriver
Primer: CCI Large Rifle Magnum
Velocity: 2008FPS
This load provided me with a 3 shot group, 1.1MOA. I shot 2 shots, they were touching. I fired a 3rd and it was almost touching, but not quote. Definitely the load for this rifle. I did try some mix and match of Winchester 209 primers and then CCI Large Rifle Magnum with the Variflame conversion. I didn't see any sort of a difference in velocity, but I can definitely see the LR primers are hotter (and told more consistent) than the Winchester 209 primers.
I'm hoping this helps someone who needs some help finding a load for their CVA MR-X rifle in 45 cal. If you don't want to weigh the charges, going off the conversion:
82 grains (weight) = Volume x 0.7 (117)
From what I have seen, they say 120 grains is going to be the max charge for BH209 powder, so if you go with that, hopefully it will work well for you. Again, I was getting right at 2,000 FPS, so that should help if you want to make a close drop chart.
