| Keyword | CPC | PCC | Volume | Score |
|---|---|---|---|---|
| machine guns used in ww1 | 1.31 | 0.4 | 1654 | 83 |
| machine guns used in ww2 | 1.91 | 0.2 | 1469 | 54 |
| machine guns used in wwi | 1.51 | 0.4 | 5218 | 60 |
| how were machine guns used in ww1 | 1.75 | 0.7 | 7216 | 33 |
| what machine guns were used in ww1 | 0.63 | 0.6 | 7946 | 99 |
| why were machine guns used in ww1 | 0.95 | 0.5 | 9619 | 72 |
| when were machine guns first used in ww1 | 0.03 | 0.5 | 2048 | 91 |
| who used machine guns in ww1 | 1.38 | 0.3 | 5670 | 38 |
| how many machine guns were used in ww1 | 1.06 | 0.6 | 5881 | 76 |
| what machine guns were used in ww2 | 1.72 | 0.6 | 1541 | 74 |
| were machine guns used in ww2 | 1.3 | 0.8 | 9898 | 52 |
| what was the german machine gun used in ww2 | 0.06 | 0.5 | 7149 | 52 |
| what machine gun was used in ww2 | 1.7 | 0.2 | 1583 | 38 |
| machine guns used in world war 1 | 0.38 | 0.3 | 2570 | 21 |
| ww2 us machine guns | 1.29 | 1 | 673 | 90 |
| machine gun in wwi | 1.99 | 0.5 | 5910 | 62 |
