Hollow Point

[Hugh Wilton 11]

Ok at the moment I am using AA Diabolo Field in .22 at 16 Grains, and yes they do the job quite nicely. However, one of the chaps at work has given me a load of Crosman Premier hollow point again in .22 but having weighed them they are only 14 Grains.

 

Now here are the questions.

First of all would the 2 Grains make much of a differance? Will the lighter pellet travel faster, but have less kenitic impact?

 

Second, is there any advantage to the hollow points? Is there enough power in a 12f/lb to deform the pellet enough to make any differance, or by having a hollow point the aerodynamics are effected and there would be a loss in accuracy?

 

Any thoughts on this or for that matter experience would be intresting to hear.

[Buster321c 1,010]

Just wondering why your weighing pellets ?

 

And i would only use them for rats , as the grouping would be poor compared to the domes .

 

Buster

[kanny 20,740]

i use to play with the hollow points years ago in the hw77 and i do beleave they make diffrence on fur especially on rats i could be wrong but i was always lead to believe that the science behind hollow points was to trap a small pocket of air between the pellet and the target so it would compress the air as the pellet entered then it would rapidly expand as the kenectic enegry desolved behind it causing more damage to the target animal.... could just be urban myth

[Phantom 631]

Hi there Hugh,

 

In short NOPE, I have used AAF's and am now using the Crosmans with excellent results.

I can interchange the normal Crosman Premier Ultra Magnums (normal domed ones) with the Hollow Pointed versions and they are still hitting the same hole! The cut out isn't deep enough to make much of a differance and the power ME with both pellets is the same.

 

Using the AAF's I used to get 10.50 ft/lbs using the Crosmans I'm getiing a little less but less than a few feet per second!

 

Dont get hung up on one pellet giving a touch more or less muzzle energy, I've got my gun set at just over 10 with Crosman Pem's, bung in a Bisley Magnum and it takes it to 11.5, pop in a RWS Hobby and it drops, Here I started this the other day

 

 

Oh and as for deformation, not enough velocity in a sub12 .22 to make much difference unles its at something harder than the pellet!

 

Tony

[Phantom 631]

Expansion on a sub12 is an Urban Myth On a high power cartridge round, different kettle of fish indeed!

 

Hugh what rifle are you using? PCP or springer?

[Hugh Wilton 11]

Thanks for the replys, to answer a few of your questions. I have an AA S410TDR PCP. The reason for this is, I also deer stork and I was fed up of sitting in a high seat with a 308 watching Bunnys taking the mick out of me in the feild, and a 308 is concidered a bit over kill on Mr Bunny.

 

As for why am I weighing pellets well it might say 16 Grain on the tin but is it realy 16 Grain IN the tin? and are they all the same. I only weighed 10 of each and there was only 0.02 gr in it.

 

I had a fealing that the expansion thing was a bit odd as most of the shots I take are through and through head shots so there can not be anything hard enough in there. Now how about those pointy ones?

[Phantom 631]

Hi again,

 

The Crosmans are listed as 14.30grain on all the tins I've used. As for the Pointy things, if you like to hit things other than the ground or the backstop around the target forget em

Pointed pellets are the absolute worst for accuracy. I've not tried the Crosman Pointed simply because I've used other pointed pellets.

The point has to be dead central to the centre line of the pellet. Ehilst they may be like that when they come from the die by the time they are ready to get into the breech the points are usually damaged and no longer central, affecting the flight charactoristics of the pellet.

 

Tony

[secretagentmole 1,701]

I was told domed were the best when I first came on here. I followed the advice.

 

 

They were right!

[zini 1,939]

My personal experiences are as follows:

 

For longer range hunting then hollow point pellets, be it any type are not as accurate as a domed head.

 

RWS Super H Point pellets worked very well on rats in my old .22 r10, and were pellet on pellet up to 18 metres. Past 18 metres and they opened up quickly.

 

I find a rat hit with a RWS Super H Point goes over instantly after a very deep thud is heard on impact to the head of vital organs.

 

The thud is the noise that is made as kinetic energy is passed from the pellet at speed into the rats body structure.

 

I am ratting this weekend with Davy and Im going to be using the new SFS tuned HW97KT in .22. I will also be using RWS Super H points if they group within a 10p piece out to 20 metres in the rifle.

 

If not then i will be using a domed pellet matched to the barrel (probably a RWS Super Field or Daystate Li).

 

For close to medium range hunting i find them very good pellets, but for anything over say 20 metres then i would always find a good matched domed pellet for your rifle.

 

Si.

Edited May 22, 2012 by zini

[kanny 20,740]

Why are flat heads classed as target pellets then if there not as accurate as the domed ? Just a thought !

[secretagentmole 1,701]

Cos the targets are at 10 metres and made of cardboard. Nice flat head punches neat little holes, domed heads tend to tear!

[kanny 20,740]

Cheers mole makes perfect. Sense now

[secretagentmole 1,701]

I, in my innocence, thought flat heads would make an ideal hunting pellet, until it was pointed out to me that beyond about 10 metres they are as unstable as an alcoholic in a distillery!

[zini 1,939]

Spot on Mike .

 

Si.

[secretagentmole 1,701]

I think you were one of my great pellet educators Si. I also learnt that cheap pellets are a waste of time except as a paperweight! You need good pellets! A poor gun will work much better with a good pellet, a great gun will work poorly with a poor pellet!