Madbull Precision 0.40g review

Madbull precision 0.40g BB’s

Supplier:

The BB’s were supplied directly from Madbull themselves; these were in small 1000 round sample packs.

Packaging and shipping:

Item came well wrapped in a sturdy cardboard box, inside were the 13 sample packs with the extra space padded with packaging. Item was sent express and was delivered by Parcel Force.

First Impressions:

My 1st impression of the bb’s were that they looked well made, opened the packet and removed a bb’s it was nicely polished, the colour was light tan which does make it fairly hard to see against the bushes and tree’s but not invisible. No contaminants could be felt on the round, No seam lines were proud either. Rubbing the BB against a piece of paper left a Tan coloured waxy line and an impression on the BB. This coating wears off in your hop chamber leaving a residue which starts to affect the accuracy

.

Rifle test:

Test rifle was an Upgraded Tokyo Marui CP2 VSR firing 525fps with 0.20g BB’s, the sample bb’s were loaded into the magazine with a speed loader. The first magazine all bb’s went straight as a laser line, until the hop dropped off at about 70 meters.

Next I tested there consistency on a target at 25meters. The same magazine was used. The groupings achieved for 5 initial shots were 1” for 3 shots and 4” the 2 remaining shots in a supported position. Unsupported the groupings were enlarged by 1” to 2” for 4 shots and the remaining shot was within 5” of centre mass.

40 meter test the groupings were tight at 5” for 6 shots and 8” for the remaining 4 shots.

Consistency testing:

I’ve tested a random sample of  the Madbull 0.40g precision bb’s

random batch of 1000 rounds supplied from Madbull, random 100 bb’s from packet (bought in April 2009)

here are the results:

5.93mm

5.96mm

5.95mm

5.96mm

5.94mm

5.94mm

5.91mm

5.94mm

5.95mm

5.93mm

5.93mm

5.93mm

5.94mm

5.92mm

5.95mm

5.94mm

5.94mm

5.91mm

5.95mm

5.96mm

5.93mm

5.92mm

5.95mm

5.94mm

5.95mm

5.92mm

5.94mm

5.93mm

5.94mm

5.94mm

5.92mm

5.94mm

5.96mm

5.94mm

5.95mm

5.94mm

5.94mm

5.92mm

5.95mm

5.93mm

5.92mm

5.93mm

5.91mm

5.96mm

5.90mm

5.93mm

5.94mm

5.93mm

5.93mm

5.93mm

5.92mm

5.96mm

5.96mm

5.93mm

5.92mm

5.95mm

5.93mm

5.92mm

5.95mm

5.93mm

5.94mm

5.91mm

5.93mm

5.93mm

5.92mm

5.93mm

5.91mm

5.94mm

5.93mm

5.92mm

5.93mm

5.91mm

5.93mm

5.90mm

5.92mm

5.91mm

5.93mm

5.92mm

5.91mm

5.92mm

5.93mm

5.92mm

5.90mm

5.92mm

5.91mm

5.93mm

5.93mm

5.93mm

5.93mm

5.93mm

5.92mm

5.94mm

5.94mm

5.93mm

5.93mm

5.95mm

5.91mm

5.91mm

5.94mm

5.95mm

Range is from 5.90mm to 5.96 which is a variance of 0.06mm

so the bb’s are 5.93 +/- 0.03mm

There were no miss-shaped bb’s in the pack of 1000 rounds, they are all polished and there were no proud seem lines

I then did a weight test of another random batch with the results as follows
I used a grain scales but they kept fluctuating on grain due to not having a flat surface

so I put 100 bb’s on that were dry and not humid from being handled.

I got 41.50g

so that’s an average of 0.4150 g per bb.

Conclusion:

These were the best Madbull rounds I tested, the accuracy with these are good, I advise only use these if your rifle is producing 500fps and you have a good hop unit. I had my hop on virtually full to get maximum range out of them.

I also advise unless you’re going to clean your hop every time you finish firing these, to avoid them as they leave a residue on your hop and barrel.

Rating:

Quality 9/10

Accuracy 9/10

Price 9/10

Consistency 9/10

Originally posted 2010-11-03 16:48:46.

Posted in Ammo, Consumables, Reviews
Tags: , , , , , , , , , , , , , , , , , , , , , , , , , , , , ,
%d bloggers like this: