Madbull Precision 0.25g review

Madbull precision 0.25g 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, no contaminants on the round, No visible seam lines, and appears to be no odd shapes in the packet..

Rifle test:

Test rifle was an standard internals Star SL8 firing 320fps with 0.20g BB’s,

Magazine used was a sniper magazine; 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 45 meters.

Next I tested there consistency on a target at 25meters. The same magazine was used. The groupings achieved for 5 initial shots were 4 out 5 shots hit the target with a grouping of 2” and then the following 5 shots achieved groupings of 2-3” with 3 out of 5 shots hitting the target. On fully auto 7 out 10 shots hit the target with a grouping of 4”.

Consistency testing:

I’ve tested a random sample of  the Madbull 0.25g 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:

5.92mm

5.94mm

5.93mm

5.92mm

5.92mm

5.92mm

5.91mm

5.93mm

5.93mm

5.93mm

5.93mm

5.92mm

5.91mm

5.92mm

5.93mm

5.92mm

5.93mm

5.93mm

5.94mm

5.94mm

5.95mm

5.95mm

5.93mm

5.95mm

5.93mm

5.93mm

5.93mm

5.94mm

5.94mm

5.94mm

5.93mm

5.93mm

5.94mm

5.95mm

5.93mm

5.95mm

5.93mm

5.94mm

5.94mm

5.94mm

5.93mm

5.94mm

5.94mm

5.94mm

5.96mm

5.93mm

5.94mm

5.92mm

5.93mm

5.94mm

5.93mm

5.92mm

5.93mm

5.93mm

5.92mm

5.91mm

5.93mm

5.94mm

5.93mm

5.93mm

5.93mm

5.94mm

5.94mm

5.93mm

5.94mm

5.92mm

5.94mm

5.95mm

5.93mm

5.92mm

5.93mm

5.93mm

5.93mm

5.94mm

5.93mm

5.93mm

5.95mm

5.93mm

5.94mm

5.94mm

5.94mm

5.93mm

5.94mm

5.95mm

5.95mm

5.93mm

5.93mm

5.92mm

5.92mm

5.93mm

5.92mm

5.94mm

5.94mm

5.92mm

5.93mm

5.93mm

5.94mm

5.95mm

5.94mm

5.96mm

Range is from 5.91mm to 5.96 which is a variance of 0.05mm

so the bb’s are 5.935 +/- 0.25mm.

There were no miss-shaped bb’s in the pack of 1000 rounds; they are all polished with no seam 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 24.95g

so that’s an average of 0.2495g per bb.

Conclusion:

In conclusion these 0.25g bb’s are decent quality with no manufacturing flaws, no contamination or miss-shaped giraffes. The consistencies of the shots are good but not excellent. For the price there a bit over expensive, especially for the average results.

Rating:

Quality 8/10

Accuracy 7/10

Price 7/10

Consistency 8/10

Originally posted 2010-11-03 16:44:38.

Posted in Ammo, Consumables, Reviews
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