Loading for 480 Ruger, range report

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ballman6711

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I finally got around to loading some 370gr Acme coated bullets with the Trailboss powder I purchased, and made it to the range today.

Anyway, I loaded fifty rounds, ten each at 4.5gr - 5.3gr of Trailboss, at 0.2gr increments.

Shot thirty rounds into the first target at ten yards with three rounds in the eight ring and the rest were in the nine ring or better. Sorry, didn't take a picture of that target.

Put up a new target and fired the last twenty rounds, again at ten yards. All rounds were in the nine ring or better. All shots were fired standing, two hand grip, single action through my 5" Taurus. I could make excuses for my poor shooting, but I just don't shoot as often as I used to and could really use more practice.

Here's the picture, twenty rounds at ten yards.

480 Ruger, 370gr Acme, 5.1 and 5.3gr Trailboss, 10yds, 20 shots.JPG

Initial impressions with my starting load of 4.5gr was that these are absolute bunny fart loads in this gun. First round was in the eight ring, the rest were in the nine or better. Recoil was pleasant and rather mild, more of a push than a hard slap compared to factory Hornady 325gr XTP's. Accuracy was ok with these first ten rounds, but nothing I would sing praise about.

As I moved up to the 4.7gr and 4.9gr loads, accuracy improved and recoil increased. Nothing dramatic with either load, but I wouldn't load this light again unless it's to let someone try the gun with mild loads.

Next I moved up to the 5.1gr and 5.3gr loads (see above picture). Accuracy improved again and recoil increased a bit more. The recoil felt like it was less than my mid range .357 loads although I would have to shoot the two guns back to back for a real comparison.

Then I shot my 45acp. That's when I realized how quiet the Trailboss loads were. I wouldn't say they were "no hearing protection" quiet, but I could barely hear them vs the 45acp which had a loud and sharp report in comparison.

And the last thing was the muzzle blast/flash/fireball. Almost non-existent. The factory Hornady 325gr XTP's throw a real fireball out, these Trailboss loads had almost no flash. I always expect a lot of flash with this gun since it's got a ported barrel, and was very pleasantly surprised at the lack of muzzle flash.

So now I have another gun to clean. But it was worth it. I would recommend Trailboss for anyone looking to shoot light loads in a large caliber pistol.

chris
 
Thanks for your work Chris. I've taken a break from shooting my 480 because smooth wood grips and hot'n humid weather don't mix well. I'll be sure to reference your data when I get reacquainted in the fall.
 
Blue32, I only bought 100 of these to try, and I really like them. I plan on loading the other fifty from 5.3gr up to max in 0.1gr increments to see if accuracy improves. Then I'll have to put an order in for some more.

I also purchased 300 MBC 340gr rnfp at the same time as the Acme 370's and will try to do a range report on them as well. And the MBC's are a bit cheaper.

I should mention cost as well, as anyone shooting these large calibers knows it isn't cheap. I loaded these Acme bullets for about $17 per box of twenty before tax and shipping. That price is for powder, primers, bullets, and brass. Once I start reloading the brass the cost will be just over $7 per twenty. I figure the MBC's will cost just under $7 per box. As a side note, I still have a couple boxes of factory Hornady 325gr XTP's with a price of $16.95 on them. Funny that I thought that was expensive back then!

chris
 
nice shootin! the faster the bullets go the more accurate they become (if you can still handle the increased recoil).

looking forward to the next range report.

murf
 
Thanks murf! I've learned a lot since starting my reloading two years ago thanks to people here and elsewhere. May be a while before the next range report, but I'll be sure to post when I get them loaded and get to the range.

chris
 
Forgot to mention but now I have my excuse for my poor shooting. Just started to clean the Taurus and found the grip screw wasn't tight, in fact it wasn't even screwed into the frame!:oops:

(Still need more practice though!)

Going to give it a good cleaning and check everything really well.

Stay safe all!

chris
 
You can always blame poor shooting on the ammo;)

Just started to clean the Taurus and found the grip screw wasn't tight
I like purple loctite (low strength) for grip screws. Holds them in but still easy to remove when you want to.
upload_2020-8-1_20-54-42.png
 
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