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Tuning Follow up on tuning the RAW HM1000x (I still like the rifle, but...)

Well Randy,
At this point I'm not sure if their worth it - accuracy wise :whistle:.

It seems the best slug shooting occurs when the slugs dia. is just a whisker smaller than the bore. This cannot really happen in most RAW's because they simply do not have the (plenum) power to shoot tight fitting slugs at required velocities.
Further, at lower velocities a Poly barrel's rifling (design) doesn't impart enough spin to ideally stablize slugs.

However, last Summer I only shot Pellets - this Summer -> all Slugs;).
We'll see what happens.
I'm guessing all barrels are different as mine likes snug fitting slugs or they spray! Snug and I get pellet accuracy IF I DO MY PART....😂👍...big IF!
 
Yeah Randy,
When I slugged my .22 and .25 cal. RAW (N/choked) barrels, they were shown to be much larger than the largest slugs available.
If I used the largest slugs (still undersized relative to barrel slugging size), they wouldn't load down the bore :cautious: .

Martin mentioned the RAW bolt probes were not designed to force tight fitting slugs down the barrel .... and would likely bend/break.
The refined bolt prob, while being excellent for pellets .... just wasn't made for inserting larger slugs with their larger bore, bearing surface.

All said, I love my RAW PCP's .............. I'm just not a bull-pup guy or wanting electronics in my guns.
 
I've given that some thought and looked at vises with adjustable bases, used about $350.00. Still looking at various options which includes ordering an Epic Two :)
I've removed my action from the chassis/stock and clamped it into a Kobalt bench vise from Lowes with hard rubber jaws. Super cheap way to do it, and simple because the action is square.
 
Yeah Randy,
When I slugged my .22 and .25 cal. RAW (N/choked) barrels, they were shown to be much larger than the largest slugs available.
If I used the largest slugs (still undersized relative to barrel slugging size), they wouldn't load down the bore :cautious: .

Martin mentioned the RAW bolt probes were not designed to force tight fitting slugs down the barrel .... and would likely bend/break.
The refined bolt prob, while being excellent for pellets .... just wasn't made for inserting larger slugs with their larger bore, bearing surface.

All said, I love my RAW PCP's .............. I'm just not a bull-pup guy or wanting electronics in my guns.
Yes, the inner probe is not beefy by any means! There was a guy on here who had a thicker tungsten probe made for his .22 RAW slug shooter. The NSA slugs that fit my barrel so far, knock on wood have all fit snug but overly so, smooth but snug. .2175 is @ the larger diameter end. I did purchase a back up probe...😌👍
 
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I've removed my action from the chassis/stock and clamped it into a Kobalt bench vise from Lowes with hard rubber jaws. Super cheap way to do it, and simple because the action is square.
I have looked at a few dual-axis vises that range from inexpensive to very expensive. The Garrent Wade Dual-axis bench vise is inexpensive and gets decent reviews. If I purchase it from Amazon.com and it does not work, I can return it. That might be the lease expensive way to go.

 
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My slugs from NSA come in tomorrow. I will be able to do some range testing next week. got 2 sizes for each weight..hope i guessed right. Wish they had a tester box. If it don't work out...back to pellets ☺️
Mike
If the incoming slugs don't fit, don't give up! Took me awhile to get the right slug fitment. But, I do hope you find THE DIAMETER your barrel needs to shoot the slugs accurately in this batch 👍.
 
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While I’m waiting for a bid from a fabricator on a custom jig to hold my action, this Macgyver method of securing my action to my Ransom rests may work. Both front and rear Ransom rests have vertical and horizontal adjustments allowing convenient and accurate aiming. If I want to remove the air bottle to facilitate a convenient way to regulate the air pressure up and down by bypassing the regulator (HUMA adapter installed replacing regulator) I can use a simple two inch wide stock secured to the action via the OEM stock screw with a 1.25 inch hole to clear the HUMA digital air pressure gauge monitoring the plenum air pressure.

The zip ties hold the action surprisingly secure against the leather rest bags and I doubt recoil energy will be sufficient to move the action. If there is movement it will be very slight and the adjustable Ransom rests can easily compensate and correct the point of aim.

If needed, I can attach my TriggerCam to my scope and see my point of aim on my smartphone. At this point I’m not sure if I want to explore adding external plenums and barrels to shoot slugs at precision and ballistic levels matching other recent air rifles like the FX Panthera or EPIC Two.

Ransom Rest RAW HM1000x tuning.jpg
 
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While I’m waiting for a bid from a fabricator on a custom jig to hold my action, this Macgyver method of securing my action to my Ransom rests may work. Both front and rear Ransom rests have vertical and horizontal adjustments allowing convenient and accurate aiming. If I want to remove the air bottle to facilitate a convenient way to regulate the air pressure up and down by bypassing the regulator (HUMA adapter installed replacing regulator) I can use a simple two inch wide stock secured to the action via the OEM stock screw with a 1.25 inch hole to clear the HUMA digital air pressure gauge monitoring the plenum air pressure.

The zip ties hold the action surprisingly secure against the leather rest bags and I doubt recoil energy will be sufficient to move the action. If there is movement it will be very slight and the adjustable Ransom rests can easily compensate and correct the point of aim.

If needed, I can attach my TriggerCam to my scope and see my point of aim on my smartphone. At this point I’m not sure if I want to explore adding external plenums and barrels to shoot slugs at precision and ballistic levels matching other recent air rifles like the FX Panthera or EPIC Two.

View attachment 424308
Nice work! All my airguns are .22-.177, and boy, when I see .30 cal airgun projectiles, they look like MISSILES compared to my dinky .22 ammo....😂👍
 
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If you're willing to throw this away just to see how well it can shoot slugs, let's trade rifles and that way you don't end up with a gun that can't shoot slugs or pellets well. You say you want to settle on a projectile, in my mind you're looking at it already.

Maybe the issue is the barrel choke and not regulator setting? RAWs are not known as slug guns.

I tried at least a half-dozen slugs in my HM1000x .30 and none of them shot very well. I stuck with pellets (and I'm fine with that because it's what I'm allowed to use in Extreme Field Target)
Sir u answered your question about why slugs. Why pellets? Hmmmm starting out subsonic maybe I want as much as and mass to fight the conditions. You are not a real shooter by how you talk. What matters is it freaking matters to him hater. Show your hm1k I hope you don't have one then I will get it but hating on hobbyists? Nah bruh and I can sail 54 grain boats out past 300, I ran out of moa. But hey it's ok just don't be gay about what others are doing unless you're gun. I got your back then bro
 
My HM1000x is in my avatar pic.

A lot of what I’m trying to offer to less experienced shooters is reasonable expectations. I’ve seen too many shooters come and go from airguns because they thought they could buy this projectile, that airgun, this scope, and automatically achieve that accuracy or power output. Firearm shooters particularly under appreciate power output and wind drift in airguns.

The rest of your post reads like gibberish I guess it’s some trash talk?
 
My current strategy to tune a RAW HM1000x.LRT (.30 caliber) to shoot various slugs and pellets has become somewhat of a chore. Out of the box the RAW comes tuned from the factory to shoot a specific pellet which it does very well. Tuning for other types of projectiles due to the lack of an externally adjustable regulator is inconvenient at best.

The goal is to find what regulator pressure and hammer spring tension will deliver the best precision at what velocity for each type of projectile. The OEM regulator requires you to remove the air bottle AND regulator from the action block to adjust. An option which I have done is to purchase a HUMA adjustable regulator, however, this still requires the removal of the air bottle to make the adjustment saving the need to remove it from the action body. Still having to remove the air bottle for each change wastes air and takes time and I don’t have patience in abundance.

Initially I was going to simply open either regulator to a very high pressure (say 190 bar) and provide lower pressure to the RAW air bottle from a dual regulated air gauge connected to an large external air tank. This way I can start at a lower pressure, say 140 BAR and work my way up trying various hammer spring settings. However, this does not allow a convenient way to go back and test settings at lower regulator pressures without removing the air bottle and bleeding off air pressure. Again, inconvenient and wasting air.

The solution, bypass the air bottle (remove it) and connect the external dual regulator and air supply directly to the action/barrel with additional fittings from HUMA which I purchased (see red dot 1). However, without the air bottle what would hold the gun in the front rest? I certainly don’t want to rest the barrel on the front rest.

A second concern I have is confirming what the actual air pressure is in the action/plenum and how close it relates to the indicated pressure from the external dual air regulator connected to an external tank. The installation of a digital air gauge into the action is my current solution, however, this requires the action to be tested out of an unaltered stock. This setup will allow me to note the indicated air pressures in the action/plenum that produced the best precision and at what velocity so that I can duplicate that performance when adjusting the HUMA regulator to deliver the same velocity with each projectile I’m likely to use with the digital air gauge in the action removed and the action back in the stock.

So testing the rifle out of the stock poses a challenge which along with no air bottle for support will require a method to secure the rifle in a rest. I looked into purchasing a second hand stock which I would cut off just before the digital air gauge inserted into the action. Used stocks were found in the $275 and up range, so currently that is not an option.

I’m currently working on a bid with a fabricator to make me a jig to hold the action/barrel that I can then hold in my Ransom front and rear rifle rests. Aiming the rifle is anticipated to be done using a TriggerCam camera and smart phone. Maintaining a vertical optic position will be handled by an MDT digital level mounted to the Spuhr scope mount. If I’m able to get behind the optic I may drop the use of the TriggerCam.

My rough sketch of the jig is not to scale and I don’t have any CAD software for my current Windows operating system. I have an very old version of AutoCad, but the upgrade price is not an option at this time.

My next PCP is going to have external regulators and an easier method of tuning. Believe it or not, I still like my RAW, but I’m likely to settle on one or two projectiles once found.

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View attachment 424599
What are the threads on the bottom of the action? I want to get a regulator gauge like you did but I don't know what the threads are.
 
After tuning my (3) RAW's (.177/.20, .22 & .25) I can say, it's endlessly frustrating going from pellets to slugs and back to pellets again.
Sure the FX Impact is easier to go back and forth, but guaranteed, that's frustrating too - especially when desiring great accuracy at 100 yards.

Its also been my experience that slugs don't beat pellets at 50 yards in RAW's.

I don't know if I've heard of anyone saying slugs are clearly more accurate than pellets in RAW's, so kinda beating your head against a wall.

PS: I've got about $500 worth of ZAN slugs .... waiting to do just what you areo_O.
Can you believe it :unsure:!!!

Last Summer I was able to get 1 MOA at 100 yards in .22 and .25.
I'll record those previous (pellet) setting and try only slugs this summer to see what I can get ..... besides frustration:p.
My hm1000x shoots almost any brand 34 grain slugs hole through hole at 25 yards , pellets are great to but the slugs definitely give a one hole group consistently.