Thank you, from the BaitShop Boyz! |
G21 - .460 rowland |
Post Reply |
Author | |
klallen
.416 Rigby ** The RockChucker ** Joined: 10 June 2003 Location: United States Status: Offline Points: 2331 |
Post Options
Thanks(0)
Posted: 18 September 2012 at 15:00 |
evening, all. i've had quite a little adventure getting this thing put together. full story's over on the sister site. anyway, i started that initial thread on may 16th. at that time (when i originally ordered the g21 kit), a 3 week delivery time was advertised on their website. |
|
A Big Mouth Don't Make A Big Man !!!
The Duke |
|
klallen
.416 Rigby ** The RockChucker ** Joined: 10 June 2003 Location: United States Status: Offline Points: 2331 |
Post Options
Thanks(0)
|
i headed up to the range to work on a couple other project so i thought i'd take this on up as well and do a little informal testing. i mostly just wanted to confirm the gun went bang and a bullet hit the target before i sent back the g30 kit that was sent in error.
we're not completely comfortable with the compensator system this rowland kit uses. it's completely floating, at this point. the forend of the guide rod doesn't extend far enough when the slide's locked home to engage the under-groove of the compensator. as such, that thing can twist and turn freely. not a good thing if you're not always going to be totally aware of the compensator position before pulling the trigger. loctite is their answer for holding the compensator in place but gluing things down on a high pressure handgun isn't what i'd consider ideal. when my brother gets a little free time in his schedule, he'll fashion a screw with an extended head to remedy this problem. until then, i needed to shoot this thing. i didn't really want to waste my handload strings on an informal functionality test, so i threw together 10 more rounds at my starting load (9.4 grs power pistol) to work with. got down on bag, took one last peek to make sure the compensator was aligned properly and touched off a round. it fired fine, was very comfortable to shoot and there was a hole in the target. but it had hung up chambering the next round from the mag. i'd wanted to test feeding from the mag so i had loaded all 10 rounds. i took out the 9 remaining rounds and loaded up 3. each fired and the next chambered flawlessly, printing a respectable group at the 12 ft i was shooting. so i loaded up the last 6 and got the chrony lined back up. accuracy was fine and the average velocity was 1077.8 fps, with my target being somewhere in that 1200 fps range. however, shots 1 and 3 hung up feeding. not good. i'd chosen to use the 250 gr .452 xtp specifically to avoid this situation with it's hard alloy jacket and small diameter hollowpoint, compared to other options. after chatting with my brother, i'm not all that concerned, as he'd just gone through the same problem solving project with a similarly compensated 10mm auto. in short, i've got a little list of troubleshooting issues i'm going to wade through over the next little while. nothing related to a flaw or error in the handgun itself. just issues often associated with high pressure semi-auto rounds in compensated firearms. first, i'll run through my handload increments. simply adding pressure and increasing the slide speed, marginally increasing the time it's in it's full open position, and allowing the next bullet just a little more time to properly align after initial recoil might be all that's needed to improve the feed. if not, we delve into springs. i heavier magazine spring could prove beneficial; forcing those bullets to be where they need to be in spite of the recoil. next, testing various recoil spring tensions. a combination of both. if none of this works, i may have to address things by the components used in the handload. dropping to a lighter bullet in efforts to lessen the jump of the gun and the affects it may be having on the bullet and it's ability to position properly in the magazine. brother spent a lot of time on his 10 getting the combination right to get the functionality he wanted. i may be in for that same kind of process. hope not. we'll see ................ |
|
A Big Mouth Don't Make A Big Man !!!
The Duke |
|
Post Reply | |
Tweet
|
Forum Jump | Forum Permissions You cannot post new topics in this forum You cannot reply to topics in this forum You cannot delete your posts in this forum You cannot edit your posts in this forum You cannot create polls in this forum You cannot vote in polls in this forum |