Table of Artillery Pieces Participating At First Manassas, July 21, 1861
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| TYPE OF PIECE | No. of USA Artillery | % of USA Artillery | No. of CSA Artillery | % of CSA Artillery | No. of TOTAL USA & CSA ARTILLERY | % of TOTAL USA & CSA ARTILLERY |
|---|---|---|---|---|---|---|
| (R) 10 pdr. Parrott Rifle | 16 | 28.5% | 6 | 10.9% | 22 | 19.8% |
| (R) 10 pdr. Ordnance Rifle | 10 | 17.8% | 3 | 5.4% | 13 | 11.7% |
| (R) 20 pdr. Parrott Rifle | 2 | 3.5% | - | - | 2 | 1.8% |
| (S) 6 pdr. Smoothbore Field Gun | 14 | 25.0% | 41 | 74.5% | 55 | 49.5% |
| (S) 12 pdr. "Napoleon" Light Field Gun | 4 | 7.1% | - | - | 4 | 3.6% |
| (S) 12 pdr. Howitzer | 8 | 14.2% | 5 | 9.0% | 13 | 11.7% |
| (S) 12-pdr. Naval Howitzer | 2 | 3.5% | - | - | 2 | 1.8% |
| TOTALS: | 56 | 55 | 111 | |||
| (R)IFLES: | 28 | 50.0% | 9 | 16.3% | 37 | 33.3% |
| (S)MOOTHBORES: | 28 | 50.0% | 46 | 83.6% | 74 | 66.6% |
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