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Old 08-21-2007 | 01:42 PM
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dmurphy317
Nontypical Buck
 
Joined: Aug 2005
Posts: 1,081
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From: New Mexico
Default Thanks Sabotloader

A couple of weeks ago Sabotloader sent me a few .504 Bullshop conicals to see if they fit better in my Magbolt than the .503's I have. I went to the range this morning with them and am happy toreport they fit just fine and I could not shake them off the powder like the .503's would.It was windy so I set up at 50 yards.

Hehad sent a total of 6 of the 460's so I shot 3 of them as they were with my usual 90gr of 777, first shot from a clean barrel was about 3" left and 1.5" high of POA, shot 2 was right where it should be at 1.75" high and just right of centered, shot three was about 1.25" left and .5" high. Not as good a group as I would expect at 50 but it was gusting from nothing to 15 mph the whole range session. I next tried 3 more using some .125 cards that he had sent with the bullets. Shot 4 wasjust left ofshot 2 with just a small strip of paper between them. Shot 5 was .375" right of the bullseye and .25" high. Shot 6 enlarged shot 2's hole by 50%. This group was much better than the first at about 1.5".

The other 3 bullets he sent me were some .504 400gr conicals (they look a lot like the 460's with a shorter nose). I stayed with 90gr of powderand the .125" cardsand aimed at the same spot, shot 7took out the small space between shots 2 and 4 (I actually wasn't sure where it hit until I went down and checked the target after I shot the 3 bullets). For shot 8 I adjusted my POA down using the next aim point on my ballistic reticle (about 2.25") and hit the X ring just low and centered (it would have been a half inch 2 shot group if I hadn't adjusted my POA). Shot 9 I pulled about 2.5" to the right and slightly lower, my bad. I really like the way the 400's shot despite the wind.

I also shot a few Barnes 285gr Expander MZ's that I bought the other day on sale. I bumped the powder up to 100gr and adjusted my POA to the second aiming point (about 4.5")above the crosshairs. Shot 10 hit about 2.25" left and 2" down. Shots 11-14 formed a diamondshaped group of just over an inch centered about 1.25" left and 1.25" down. I was happy with that group considering the conditions.

Due to the winds I did not setup the chrony to check the velocities but last time I shot the 460 load they wereaveraging around 1400 to 1425. I would expect the 400's to be about 50 to 75fps faster. The 285's I would expect to be similar to the Buffalo 285 SSB's that average about 1750. I hope to posta picture once I get to a place to upload it.

So a big thanks to Sabotloader for helping me out with the bullet size and supply.
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