Quest for the Holy Grail: 1" @ 100yds with Gen 2 Marauder .22

Good gracious this took a lot of time, effort, $$$ and I'm still just a little short, but....

I finally got all the stars to align for an early morning shoot with no wind and got some decent groups which were repeatable.

I measure this optimistically as 1 1/8", maybe you'll call it 1 1/4 -- with JSB 18.1 @ 915 fps

Here's how I'm set up:
  1. Marmot Militia HF barrel
  2. Hill Valve/hammer/spring Kit (custom valve, spring, hammer etc.)
  3. Huma Reg set to 2100 psi
  4. Primary Arms 4-14XFFP R-grid (first focal plane)
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    All these mods excluding the scope cost me more than $500, and I'm still not sub MOA, LOL!! It's only money.

    This has been quite a journey that sucked me completely into airgun world. And now I have a shooter, almost. Its been fun. 

    If you're a noob doing research just know that despite YouTubes, blogs and all the rest, my opinion is the Marauder .22 unmodified is a 50yard gun, not a 100 yard gun. Yes you can hit at 100, but not with consistency that will make you happy -- and certainly not with enough accuracy outside 50-75 to humanely take game.

    More opinion: If you want a 100yd shooter for less than the $1300-$1500-$1900 class, consider buying a used Marauder and then spend the real money on all the modifications it will take to build it up. You can get yourself something done perhaps for $700 - $800 with some sweat equity. Learning the guts of these guns is instructive if you are getting into this sport. This is a postive side effect of this strategy.

    Look forward to hearing comments and different opinions.



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Two things. 1. Glad you are hitting these groups at 100 yards. 2. I'm on the same path, just doing a complete restart and setting all adjustments back to zero.

​My experience was probably similar to yours. Up to about 75 yards, the Marauder is really accurate, but something happens that last 25 yards. A few weeks ago, I was using the JSB Exact Heavies (.22, 18.13 gr) and getting a 1.5 inch 5 shot group. The next week, went to another range, 100 yards, and a 6 inch group. Nothing changed except the range. Really confusing.

​So, taking what I've learned, I've returned the gun to factory settings (no modifications, all factory at this point) and will begin the tuning process again, but with knowledge I didn't have last time. The main upgrade I've done is the scope. BSA 4-14x44 FFP. Same case as the Primary Arms, probably different glass and reticle.

​It'll take a few weeks of shooting, chrony work, and the rest to get it where I want it.

​Sadness though. The Marauder Field and Target looks like it'll be available soon. http://www.airgunnation.com/topic/maurader-fiels-and-target-edition/

Initial reviews indicate the gun shoots very well, includes a regulator set for around 1400 PSI, and throws the Crosman Premier Dome 14.3 at 820 to 830 fps over 50 shots with excellent accuracy. It's under $700 (If it ever comes out).

​I remember years ago when desktop computers leap-frogged old models monthly. I think this might be the same time for PCP air rifles. So much progress, so many choices, so fast!
 
Nicely done. I would have to say that doing what you are doing is more about the journey and the learning than the actual end result of 1" group. Because you could certainly buy a top gun for almost what you spent so far and have the 100 yard shooter. 

I think that perhaps the upcoming regulated, LW Marauder in .22, which I think will sell for $630? May could be a contender as a better starting platform. 
 
Out doors & 14x, pretty darn good! Indoors with more a bit larger scope, just might be MOA right there.

The Marauder has been great sense day 1 ( and the "match trigger on the 1st 100 units ) and personally I like the Gen2 changes also. If they had released it as designed & tested in '08 it would have ruled target shooting as well as being the lowest entry level pre-charged. Perhaps the newest management thing at crosman will turn out nicely for the small segment of crosman that are pre-charged airguns.

John



 
I didn't haul chrony out to campsite to get #. Shot prone with bipod and rear bag off some firm sand. But I'm confident about the 915 because of the bench work at home and the reg. It's pretty consistent 910-920 ish. Also I overfill this gun thanks to reg. 3250. Might be dumb, but no harm so far and I'm no brain surgeon so dumb is as dumb does.