Advantages of .22 caliber 25gr vs .25 caliber 25gr?

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2manyAirGunz

2manyAirGunz

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Jul 26, 2018
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I pose that question because my next airgun purchase will be the EDgun R5m in either the .22. caliber tuned to push the 25.4 gr pellet at 865-875 FPS, or the .25 caliber set to deliver the 25.4 gr pellet at 920 FPS.

I mostly punch paper at 40 yards and pest at 30 yards and less. This shooting will be done in my backyard in a suburban subdivision.
 
Pretty much whatever you aim at with either caliber will be dead at those ranges. Paper or pest. Seriously.

How do I know? I have the Daystate Wolverine HP in 22 cal slinging the redesigned 25.4g at 920 fps. I also have the EDgun R5M 25 cal slinging the 25.4g at 900 fps.

Ballistic Coefficient will be negligible at the 30-40 yard ranges you'll be shooting so choose whatever gun you want really.

Things to really think about:

1. Ammo availability - with the advent of the Red Wolf HP, those redesigned 25.4g's are hard to find now, so you may have to wait for ammo.

2. Air consumption - slight advantage to the 22 cal

3. Does the R5M sling those redesigned 25.4g's well?? I have no idea. So I'd first talk to Brian over at EdgunWest or anyone else here who can chime in and tell you if they've shot those pellets through their gun and what kind of accuracy you should expect. I do know that the R5M in 25 caliber shoots the 25.4g's really well - heck, it's the preferred pellet weight straight out of the box.

4. Does the 25.4g 22 cal redesigned pellet fly accurately at lower velocities you're stating: 860-880 range? Again, something to consider.

5. The 22 cal 25.4g redesigned fly really well out of the LW polygonal barrels slinging them above 900 fps. The R5M has a standard LW barrel. I'd like to know how the regular LW barrels handle this heavy pellet at speeds lower than 900 fps before making the decision you're trying to make.

I know I've just complicated things in a way for you. But those are things I'd consider if I were in your shoes.

I'd recommend the R5M in 25 caliber because it's a tried and tested platform for many shooters on this forum and we know the gun is very accurate with them.
 
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......22........ way too much damage for .25 cals. you'll be sick of raking splinters, building backstops, and wondering where your pellet came down in thru someone's glass 5 blocks away.......... many of us as airgunners dont fully realize the fact that .25 (6.35mm) is really TWO jumps from .22....... somehow , the powers that be whom influence lead pellet and airgun manufacturing - they skipped right over .24 caliber (or 6mm) ---- airsoft got it --- how does THAT happen ? ? idk. idc anymore , either... i'm not even fighting for 5mm these days....
 
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I've asked the same question. I had a Kral PB built for this pellet in .22. I'ts my first PCP but I'm shooting the Monsters in .22 under 1" at 75 yards off the trunk of my car. Shooting them between 860-880fps. .25 has a better natural impact dump upon impact with greater surface area it slows down faster but this, as well as .001 BC, makes no difference for what you're doing. ...doesn't mean it's not worth spending hours researching though!
 
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I’m waiting on that shipment too, I have taken grackles out to 106 yards with my streamline 22. Now I’m wanting the r5m 25 cal long for longer shots. Even though a lot of birds dropped first shot I feel the pellet zipped right through and didn’t dump enough energy. This is just my personal opinion within 60 yards and closer most birds were dropped with 22 18grn jsb with my gun set on high. 
 
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The RD .22 has a BC advantage over the King .25. With that said, you really aren’t going to capture this BC advantage shooting at your stated distances. You’d begin to see the RD .22s fight outside influences better at possibly 55 yards plus. 

I think you would get better efficiency from the .25. It takes more air to get that little 25gr .22 moving fast as compared to the 25gr .25. at the same speed. 

If I were you and considering the distances you are shooting, I’d go with the .25 shooting the Kings at 880 fps or less. You’d get a lot of shots and those tins come in 350 count. 
 
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I'm a cheapskate. .25 JSB's are 350 for around $19 per tin. .22 are 500 for around $19 per tin.

.22 will use less air (typically, not always)

For paper, I'd also drop to the 18 grain pellets, 830-ish fps, save air, accurate.

40 yards, .22 is accurate, and the 18 grain have less energy, and usually quieter. Suburbia can be a noisy place, no reason to add to the noise


 
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Honestly I think the .22 with 18gr would be best for you. I shoot those out to 100yds accurately. I wouldn't waste money on a .25 shooting only 40yds max. Then again I've had bad tins of 25gr .25 JSBs so I've been turned off completely by .25cal. Have 4 .22s now 2 at 30fpe with 18gr and 2 setting up with 25gr redesigned monsters in the 45fpe range. 
 
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Allow me to throw a monkey wrench at you... have you considered the leshiy .22?.... Oh maybe its me that wants that one lol

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I have considered the Leshiy. However, I'm the guy who drives GMC 2500 on daily basis. My excuse for this overkill is that I prefer the weight and torque when I'm towing twice a month -- at most.

I admit it. I'm smitten with the powerful PCPs. The sound of 40fpe smacking a target is music to my ears.
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Honestly I think the .22 with 18gr would be best for you. I shoot those out to 100yds accurately. I wouldn't waste money on a .25 shooting only 40yds max. Then again I've had bad tins of 25gr .25 JSBs so I've been turned off completely by .25cal. Have 4 .22s now 2 at 30fpe with 18gr and 2 setting up with 25gr redesigned monsters in the 45fpe range. 

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I'm leaning towards the .22 caliber. If Brian can assure me of 40+ fpe in that caliber R5m, it's a deal.

P.S. One thing to consider with the .22 set up to push 40+ fpe, is the stress on the valve stem. Brian states that the Matador R5m in .22 and .25 cal is essentially the same gun expect for the barrel. That to me means that 45fpe would not tax the internals of this rifle.

Thanks for your input.
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