Small barrel mod to help pellet seating consistency

[K.O.]

Hey guys thanks for taking the time to respond now that BDS reminded me that  It is spelled LEADE I found what I was looking for and tink I will now do a bit better job.

I was worried about getting it right so I did only a touch more than easing the rifling edge  I wanted to take it down more.

what I found using leade


http://www.gatewaytoairguns.org/GTA/index.php?topic=31208.0

http://www.gatewaytoairguns.org/GTA/index.php?topic=52902.0

Ok so now I need to order a cheap but accurate enough scale...

and do any of you guys know of a cheap pellet sizer  or can I make some precision holes  with a reamer.

I do not think I can be accurate enough all I have for measuring is a cheap plastic Vernier caliper...

I am not after 10m match results  but I have seen that it does help pumpers at 25-50 ranges and that it can cut fps variance from 20 or so fps to about 5.

I guess I can do it the hard way start undersize and work upwards for each  pistol/rifle.

I will start with my 2100 because ever since I accidently choked its barrel it is a lazer out to 30 yards with the 7.4 pointed

however it no longer likes the ultra mags and hollow points

I am sure reducing their  head size will help some...


I do like the smooth twist concept and think if it is done just right it will work very well  but each barrel will be very pellet and speed specific...

I brought up hammer forging because I think if some work was done and machinery was scaled down to air rifle needs (much lower pressures means softer metals heck the slippery Benjis are brass) rather than powder burner needs it just might prove economical and useful  or are they already doing it?

Man that twisty barrel seems like it would really deform the pellet... I have seen it also but always thought it was a joke/almost acuarate thing...

http://en.wikipedia.org/wiki/Krummlauf

[K.O.]

went back in and finished...

Imagine a touchdown dance, in the zone, you just know when you got it just right...

[woody67]

Im glad you got it completed. Theres nothing better than the reward of finishing a project after thinking, planning and execution.



That said, you do know a new barrel costs less than $20 right?

Im just messing around, but they are less than $20 directly from crosman. Wish i knew that before i bought them for $30-$35...

[K.O.]

this is the 14.5"  I just bought and installed both the stock and this one had a ridge at the beginning of the  rifling,  I am guessing just about every barrel could use tuning...

2250-019       $ 13.02

[K.O.]

After I tried free floating the barrel yesterday (not a go with this 1322 without some more work)

I put the barrel band back on.

here is the reason for my touchdown dance,

the high and low are 10 and 15 pumps the rest are 14

the misses to the left I am sure its me and am not embarrassed  as I think its pretty good for 30yard standing door frame side rest...

point is they are Crosman hollow points uninspected/unsorted from the tin and I am very pleased with the consistency...

Accurizing finished; now on to the valve.